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View Workgroup members wanted for Modification P469

Workgroup members wanted for Modification P469

We are looking for members to join the Modification P459 ‘Credit Default Refusal and Rejection Period Modification’ Workgroup, which seeks to delay the Credit Default Refusal and Rejection Periods. This change would give parties a two-hour window from the Level 2 Credit Default notification until the time when any Energy Contract Volume Notifications (ECVN) related to a defaulting party are rejected.

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View Balancing Mechanism Reporting Service will be switched off on 31 May 2024

Balancing Mechanism Reporting Service will be switched off on 31 May 2024

Elexon can confirm that all Balancing Mechanism Reporting Service (BMRS) endpoints will be switched off on 31 May 2024 as they have been replaced by the Insights Solution.

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View Help us shape the future of the Digital Code

Help us shape the future of the Digital Code

Elexon is developing the capabilities of the Digital Code, and we need your help to shape what it looks like in the future.

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View Smaller generators can now be paid for providing system restoration services

Smaller generators can now be paid for providing system restoration services

Elexon, the Balancing and Settlement Code (BSC) Manager, has implemented a change to the BSC so that smaller, distribution-connected generators that are not BSC Parties are treated the same as larger generators for payments under the BSC if system restoration services are needed.

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View Elexon to administer a support scheme to grow the green economy

Elexon to administer a support scheme to grow the green economy

Source: Elexon Corporate Website

From this month (April 2024) Elexon will be administering a new scheme for around 340 energy intensive industries in Great Britain, to compensate them for the cost of network charges on their electricity bills.

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View Changes to BSC Parties and Qualified Persons: April 2024

Changes to BSC Parties and Qualified Persons: April 2024

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in April. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Elexon’s final 2024/25 business plan is now live

Elexon’s final 2024/25 business plan is now live

Source: Elexon Corporate Website
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View Market-wide Half Hourly Settlement Qualification documents submitted for approval

Market-wide Half Hourly Settlement Qualification documents submitted for approval

Elexon and the Retail Energy Code (REC) are submitting three Market-wide Half Hourly Settlement (MHHS) Qualification Documents to their respective Performance Assurance Boards (PAB) for approval. The documents will go to the REC PAB on Tuesday 26 March, and the BSC PAB on Thursday 28 March.

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View Settlement error identified in GSP Group _G

Settlement error identified in GSP Group _G

Elexon has identified an error in Settlement volumes attributed to a windfarm located in GSP Group _G.

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View Changes to BSC Parties and Qualified Persons: March 2024

Changes to BSC Parties and Qualified Persons: March 2024

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in March. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Indicative Settlement Price data now available on the Insights Solution

Indicative Settlement Price data now available on the Insights Solution

Elexon has completed the migration of all Balancing Mechanism Reporting Service (BMRS) datasets and functionalities that were in scope to be built onto the Insights Solution platform.

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View Migrating non-half hourly unmetered supplies metering systems to MHHS

Migrating non-half hourly unmetered supplies metering systems to MHHS

Elexon is working to smooth the path to Market-wide Half Hourly Settlement (MHHS) implementation by supporting Parties that need to migrate more than 30,000 Non-Half Hourly unmetered supplies metering systems to MHHS.

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View Manifest Error Claim ME045 and ME046 – Settlement Day 4 February 2024

Manifest Error Claim ME045 and ME046 – Settlement Day 4 February 2024

In accordance with Section Q7 of the Balancing & Settlement Code (BSC), the National Electricity Transmission System Operator (NETSO) has raised two Manifest Error claims. The claims relate to Settlement Period 41 of Settlement 4 February 2024.

On 20 February 2024 the Trading Disputes Committee (TDC) heard the claims and determined, in accordance with Q 7.1.1 of the BSC, that Manifest Errors had occurred.

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View Elexon’s response to Ofgem Consultation on Market Facilitator delivery body

Elexon’s response to Ofgem Consultation on Market Facilitator delivery body

Source: Elexon Corporate Website
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View Submission of Generation and Demand Capacity (GC/DC) for the Spring 2024 BSC Season

Submission of Generation and Demand Capacity (GC/DC) for the Spring 2024 BSC Season

The Spring BSC Season begins on 1 March 2024. The deadline for submitting your GC and DC values for the Season is 15 February 2024.

Even if the values are identical to the last BSC Season you need to submit values for the new Season.

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View MHHS: Pre-Qualification Submission Window Open

MHHS: Pre-Qualification Submission Window Open

The pre-qualification submission window for Market-wide Half Hourly Settlement (MHHS) participation has been opened today (5 February) and final submissions must be provided by 26 April 2024.  

Non-System Integration Testing (SIT) Suppliers, Supplier Agents and Meter Equipment Managers, New Entrant LDSO Programme Participants are required to provide a Pre-Qualification Submission for MHHS Qualification.

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View Changes to BSC Parties and Qualified Persons: February 2024

Changes to BSC Parties and Qualified Persons: February 2024

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in February. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Respond to Ofgem’s consultation on licence conditions and changes to the BSC to implement Elexon’s new ownership arrangements

Respond to Ofgem’s consultation on licence conditions and changes to the BSC to implement Elexon’s new ownership arrangements

The Future System Operator (FSO) will be established in 2024 and will be called the National Energy System Operator (NESO). As a result, Elexon will move away from being under National Grid ESO ownership and in future will operate under a ‘federated model’ ownership arrangement. Ofgem are asking for your views on licence conditions and changes to the BSC to support the implementation of the new ownership agreements.

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View Elexon Insight: The key to unlocking the future of local flexibility

Elexon Insight: The key to unlocking the future of local flexibility

Source: Elexon Corporate Website
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View An update on CP1589 ‘Change the number of characters used to specify Market Participant Role Codes in MDD’

An update on CP1589 ‘Change the number of characters used to specify Market Participant Role Codes in MDD’

CP1589 ‘Change the number of characters used to specify Market Participant Role Codes in the Market Domain Data’ will now go for decision following the Market-wide Half-Hourly Settlement (MHHS) decision for Change Request (CR) CR041 ‘Change the format of Market Participant Role Code from Char(1) to Char(2)’.

CR041 was issued for impact assessment on 10 January 2024 and will close on 24 January 2024.

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View Flow data from Britain’s newest interconnector link now available

Flow data from Britain’s newest interconnector link now available

Instant data on electricity flows across the new 1.4 GW Viking interconnector is now available from Elexon. The Viking Link is the world’s longest land and subsea electricity cable, connecting the East of England with Denmark.

Making the flow data for the Viking Link available is important so that Elexon can continue to provide more transparency to anyone that monitors the electricity market.

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View Changes to BSC Parties and Qualified Persons: January 2024

Changes to BSC Parties and Qualified Persons: January 2024

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in January. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Tell us your views on our 2024/25 business plan

Tell us your views on our 2024/25 business plan

Source: Elexon Corporate Website
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View Enhancing our customer enquiry processes using Elexon Support

Enhancing our customer enquiry processes using Elexon Support

In our recent customer feedback survey, a number of customers expressed the need for a more efficient and streamlined process to submit and track enquiries and concerns related to the BSC and its services.

We’ve taken this feedback on board and have been working on an enquiry management tool called Elexon Support. Elexon Support will provide you with a centralised platform to easily manage your interactions with us.

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View 2024/2025 Estimated Transmission Losses Adjustment values published

2024/2025 Estimated Transmission Losses Adjustment values published

Following the implementation of Modification P350 on 1 April 2018, Estimated Transmission Losses Adjustment (ETLMO) values have been calculated for each season across the 2024/25 BSC Year. The Imbalance Settlement Group approved the revised Estimated Transmission Losses Adjustment (ETLMO) values for use from 1 April 2024 at its December 2023 meeting.

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View Elexon’s views on the Market Facilitator role

Elexon’s views on the Market Facilitator role

Source: Elexon Corporate Website
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View Impact of MHHS Programme Change Freeze on BSC Changes

Impact of MHHS Programme Change Freeze on BSC Changes

The Market Wide Half-Hourly Settlement (MHHS) Programme has implemented a Programme Change Freeze. This means that any BSC Changes that require changes to the MHHS design or MHHS code drafting (via a MHHS Change Request) are likely to have their implementation postponed. 

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View Code Drafting in preparation for Market-Wide Half Hourly Settlement (MHHS)

Code Drafting in preparation for Market-Wide Half Hourly Settlement (MHHS)

A significant amount of work is being done by Elexon and the Market-wide Half Hourly Settlement Programme (MHHSP) to make changes to BSC documents (or to develop new documents) in preparation for MHHS.

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View Credit Assessment Load Factor values for spring 2024 BSC Season: 1 February appeal deadline

Credit Assessment Load Factor values for spring 2024 BSC Season: 1 February appeal deadline

The Credit Assessment Load Factor (CALF) values for the spring 2024 BSC Season, which runs from 1 March 2024 to 31 May 2024, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the ELEXON Portal.

If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

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View Changes to BSC Parties and Qualified Persons: December 2023

Changes to BSC Parties and Qualified Persons: December 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in December. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Reduction of UMS MEM Error threshold from 2024 Quarter 1

Reduction of UMS MEM Error threshold from 2024 Quarter 1

The Unmetered Supplies (UMS) Material Error Monitoring (MEM) threshold will reduce from 10,000MWh to 7,000MWh, effective from the Quarter 1 2024 reporting window.

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View MHHS Qualification Plan presented to Suppliers and Supplier Agent representatives

MHHS Qualification Plan presented to Suppliers and Supplier Agent representatives

Code Bodies presented the MHHS Qualification Plan to Suppliers and Supplier Agent representatives in an extraordinary Qualification Working Group (QWG) meeting on Monday 27 November.

The Qualification Plan provided the current position for Supplier and Supplier Agent Qualification alongside the Qualification Approach & Plan (QAP) and the Qualification Assessment Document (QAD) timelines.

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View New BSC Service Status Dashboard

New BSC Service Status Dashboard

We have launched the new BSC Service Status Dashboard today (20 November) so that Parties can see an up to the minute view of whether there are any issues with the BSC services that we provide.

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View 2024 dates for Elexon’s Introduction to the Energy Market seminar released

2024 dates for Elexon’s Introduction to the Energy Market seminar released

We have released three new dates for our Introduction to the Energy Market seminars in 2024. Find out more below and sign up to attend.

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View Submission of Generation and Demand Capacity (GC/DC) for the Winter 2023 BSC Season

Submission of Generation and Demand Capacity (GC/DC) for the Winter 2023 BSC Season

The Winter BSC Season begins on Friday 1 December 2023. The deadline for submitting your GC and DC values for the Summer BSC Season is Thursday 16 November 2023.

Even if the values are identical to the last BSC Season you need to submit values for the new Season.

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View Elexon assurance of legacy Suppliers and agents during the transition to MHHS

Elexon assurance of legacy Suppliers and agents during the transition to MHHS

The MHHS Programme is introducing changes for legacy Suppliers and agents to support the Migration of Metering System Identifiers (MSIDs) from legacy arrangements to MHHS. Reverse migration can take place during the migration period (from March 2025 onwards) where a customer has switched to a Supplier that is not yet MHHS Qualified.

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View BSC Insight: How to get more detailed metered volume data from our Insights Solution

BSC Insight: How to get more detailed metered volume data from our Insights Solution

Through the electricity Settlement process Elexon obtains metered volume data which shows the generation and demand volumes of electricity for each Balancing Mechanism Unit (BMU) on the system and whether this is an estimated or actual value. This data is included in our SAA-I014 report which covers all Settlement activity for every half hour, each day and it is easily accessible on our wholesale market data service the Insights Solution. 

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View Changes to BSC Parties and Qualified Persons: November 2023

Changes to BSC Parties and Qualified Persons: November 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in November. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Maximum Export Limit data on BMRS and Insights Solution

Maximum Export Limit data on BMRS and Insights Solution

Following the issues mentioned in Elexon Circular EL03922 we have recently deployed a fix that addresses the issue with processing of large volume of Maximum Export Limit (MEL) data on our Balancing Mechanism Reporting Service (BMRS).

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View Elexon administers new discount scheme for PPM standing charges

Elexon administers new discount scheme for PPM standing charges

This month (October 2023) Elexon has begun to administer a new support scheme to benefit electricity prepayment meter (PPM) customers this winter by discounting their daily standing charges. Xoserve (a gas industry code manager) will be administering the equivalent scheme for gas PPMs.

 

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View Elexon welcomes Devrim Celal to the Board as a new industry Non-Executive Director

Elexon welcomes Devrim Celal to the Board as a new industry Non-Executive Director

Source: Elexon corporate website

Elexon has appointed Devrim Celal to the Elexon Board. Devrim, who takes up his post from 1 November 2023, replaces Claire Duffy who is retiring from the Board.

The BSC requires the Elexon Board to be comprised mainly of Non-Executive Directors who have electricity industry experience and at least two Non-Executive Directors who must be from outside the industry.

The Elexon Board will now comprise Sara Vaughan Chair, Peter Stanley Elexon CEO along with our three industry Non-Executive Directors David Titterton, Ian Graves and Devrim Celal and our two non-industry Non-Executive Directors Tim Fitzpatrick and Anne Heal.

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View Virtual Lead Parties to offer services in the wholesale electricity market

Virtual Lead Parties to offer services in the wholesale electricity market

Ofgem has today (6 October 2023) approved Balancing and Settlement Code Modification P415 ‘Facilitating access to wholesale markets for flexibility dispatched by Virtual Lead Parties’.

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View BSC Insight: Accessing Maximum Export Limit and Maximum Import Limit data on our Insights Solution

BSC Insight: Accessing Maximum Export Limit and Maximum Import Limit data on our Insights Solution

If you currently use the www.bmreports.com service to access Balancing Mechanism (BM) data, you can now access the data through the new Insights Solution. You can use the ‘Balancing Mechanism data by Market View’ page to view BM Unit data at Market level. It can also be used to view Physical, Dynamic, Bid Offer and Balancing Services Volume data.

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View Market Index Definition Statement Review 2023

Market Index Definition Statement Review 2023

The Market Index Definition Statement (MIDS) is annually reviewed by the BSCCo. on behalf of the BSC Panel, to ensure that the Market Index Price is providing a reasonable reflection of the price of wholesale electricity in the short term market.

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View New service standards for Insights Solution users

New service standards for Insights Solution users

Elexon is consulting on removing a requirement in the Balancing and Settlement Code to continue provision of a High Grade telecommunications line so that Parties can receive instant updates from the Balancing Mechanism Reporting Service (BMRS).

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View Changes to BSC Parties and Qualified Persons: October 2023

Changes to BSC Parties and Qualified Persons: October 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in October. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Peter Stanley has been appointed as the new CEO of Elexon

Peter Stanley has been appointed as the new CEO of Elexon

Source: Elexon corporate website

We are delighted to announce that Peter Stanley has been appointed as the new CEO of Elexon. This follows consultation with the BSC Panel. Peter joined Elexon in 2016 as a member of the Executive team and has been acting as interim CEO since August.

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View Watch the webinar on Low Power Instrument Transformers and their potential use in Settlement Metering Systems

Watch the webinar on Low Power Instrument Transformers and their potential use in Settlement Metering Systems

Elexon’s Metering Team recently hosted a webinar where Siemens Energy gave a presentation on a new type of technology that has the potential to be used within Settlement Metering Systems, Low Power Instrument Transformers (LPITs).

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View Spotlight On: The Elexon Kinnect Customer Solution

Spotlight On: The Elexon Kinnect Customer Solution

The Customer Solution is one of the three main pillars of Kinnect, our cloud platform. It is a self-service gateway for new and existing BSC Parties who need an online, streamlined and self-managed experience to simplify and speed up access to the electricity market. Once companies are active in the market, they can use the Customer Solution to effectively self-manage their data and assets.

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View Changes to BSC Parties and Qualified Persons: September 2023

Changes to BSC Parties and Qualified Persons: September 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in September. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Credit Assessment Load Factor values for Winter 2023: 1 November appeal deadline

Credit Assessment Load Factor values for Winter 2023: 1 November appeal deadline

The Credit Assessment Load Factor (CALF) values for the Winter 2023 BSC Season, which runs from 1 December 2023 to 29 February 2024, are available from the BSC Portal. If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

  • BSC Portal > Financial and Credit > Credit / Credit Alerting
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View Customer survey: an opportunity to offer feedback

Customer survey: an opportunity to offer feedback

Source: Elexon corporate website

At Elexon, we want to make sure that the information we provide to you is clear, precise, easy to find and tailored to your needs. But to do this we need your help.

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View Understanding Settlement Reports: a guide for BSC Parties

Understanding Settlement Reports: a guide for BSC Parties

For any Settlement Date and Settlement Run Type carried out in accordance with the Settlement Calendar, the Settlement Administration Agent (SAA) publishes Settlement Reports (known as SAA-I014 reports) to relevant industry parties. Whilst all Settlement Reports are built using the same data, there are slightly differing sub-flows of the SAA-I014 depending on the primary recipient. 

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View Elexon Chief Executive Simon McCalla to step down

Elexon Chief Executive Simon McCalla to step down

Source: Elexon corporate website

Simon McCalla is stepping down as Chief Executive of Elexon with effect from 4 September 2023 to focus on further developing his family’s growing retail business.

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View Current performance issues on BMRS

Current performance issues on BMRS

We are aware that  Balancing Mechanism Reporting Service (BMRS) has not been operating to the expected service levels. We recognise that this can be both frustrating and disruptive for our customers. We have put in place a number of actions to address the issues that you have recently experienced.

  • BMRS website
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View Spotlight On: the Digital Code

Spotlight On: the Digital Code

Using the code documents of the BSC is an important part of understanding how your company engages with the electricity market and how it remains compliant with the BSC requirements.

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View Workaround for loading Market Domain Data version 338

Workaround for loading Market Domain Data version 338

Please note that there was an error within the blue text in the original Circular sent on Thursday 10 August. This has since been amended in the version in the online archive.

Please refer to the below information to make manual adjustments.

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View August 2023 CPC Consultation

August 2023 CPC Consultation

Change Proposal Circulars (CPCs) are a consultations batch for Change Proposals (amendments to BSC subsidiary documents) and the request of Impact Assessment responses to Change Proposals from Industry Participants. 

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View Submission of Generation and Demand Capacity (GC/DC) for the Autumn 2023 BSC Season

Submission of Generation and Demand Capacity (GC/DC) for the Autumn 2023 BSC Season

The Autumn BSC Season begins on Friday 1 September 2023. The deadline for submitting your GC and DC values for the Summer BSC Season is Thursday 17 August 2023.

Even if the values are identical to the last BSC Season you need to submit values for the new Season.

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View Workgroup members wanted for Modification P459

Workgroup members wanted for Modification P459

We are looking for members to join the Modification P459 ‘Allowing different Supplier Agents to be appointed to Import and Export MSIDs’ Workgroup, which seeks to remove barriers in preventing the use of Export MSIDs for small-scale microgeneration.

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View Changes to BSC Parties and Qualified Persons: August 2023

Changes to BSC Parties and Qualified Persons: August 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in August. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Join our webinar on the upcoming P395 changes

Join our webinar on the upcoming P395 changes

Elexon will implement Balancing and Settlement Code (BSC) Modification P395 ‘Aligning BSC Reporting with EMR Regulations – an enduring solution’ on 2 November as part of the November 2023 BSC Release.

We are hosting a webinar on 21 September 2023 to explain the changes.

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View Join the P456 Workgroup

Join the P456 Workgroup

We are looking for members to join the P456‘Enable Elexon to procure ancillary Technology Services for use by BSC Agents’ Workgroup, which seeks to remove barriers in BSC Section E ‘BSC Agents’.

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View Elexon Board Directors election or re-election results 2023

Elexon Board Directors election or re-election results 2023

Source: Elexon corporate website

In keeping with best practice for corporate governance and accountability, all Elexon Board Directors were subject to election or re-election via a vote at Elexon’s Annual BSC Seminar held on 13 July 2023.

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View Why are there file sequence numbers missing for my SAA-I014 reports?

Why are there file sequence numbers missing for my SAA-I014 reports?

The SAA-I014 files are released daily to customers and a sequence number is assigned to each file. Some customers have been in contact with us regarding missing file sequence numbers, since the go-live of the new Settlement Administration Agent (SAA) service on Elexon Kinnect, our cloud platform. 

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View Why is my FAA Daily Advice Note showing a different total to my SAA data?

Why is my FAA Daily Advice Note showing a different total to my SAA data?

Greater precision

Our new Settlement Administration Agent (SAA) went live on our Kinnect Platform in June 2023. Since then, a small number of customers have asked why rounded numbers are used for trading charges invoiced by the Funds Administration Agent, (FAA) compared with figures that are reported by the SAA  reports.

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View CP1578 second industry Consultation

CP1578 second industry Consultation

CP1578 ‘Enabling Embedded LDSOs to submit Site Specific LLFs’  was issued for a second Industry Consultation. We invite responses until 5pm on Friday 4 August 2023. 

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View The Standard June 2023 Release was implemented

The Standard June 2023 Release was implemented

On 29 June 2023 the Standard June 2023 Release was implemented. 

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View Highest number of BSC changes implemented in one year since 2009

Highest number of BSC changes implemented in one year since 2009

Source: Elexon Corporate Website
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View Changes to BSC Parties and Qualified Persons: July 2023

Changes to BSC Parties and Qualified Persons: July 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in July. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View New and improved REMIT portal live on the Insights Solution

New and improved REMIT portal live on the Insights Solution

Elexon has built a new and improved portal for publishing Regulation on Wholesale Energy Market Integrity and Transparency (REMIT) disclosures by the industry.

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View Understanding Applicable Balancing Services Volume Data for Secondary BM Units

Understanding Applicable Balancing Services Volume Data for Secondary BM Units

This article explains how Applicable Balancing Services Volume Data (ABSVD) is treated in Settlement for Secondary Balancing Mechanism (BM) Units. We are publishing this following a question from a VLP around why an Imbalance Charge was not calculated for them after National Grid ESO (NGESO) submitted ABSVD values for their Secondary BM Units.

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View Join our implementation working group on changes to UMS Metering Systems

Join our implementation working group on changes to UMS Metering Systems

Modification P434 ‘Half Hourly Settlement for UMS Metering Systems’ was implemented on 14 December 2022 as a special BSC Release. This Modification will require a period of mandatory Change of Measurement Class for NHH UMS Metering Systems.

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View Where are Great Britain’s Radio Teleswitch System meters and who uses them?

Where are Great Britain’s Radio Teleswitch System meters and who uses them?

This is the second in our series of articles that provide statistics and information on Radio Teleswitch System (RTS) meters. Since April 2020 the costs for the RTS service have been recovered through the Balancing and Settlement Code (BSC) charging arrangements.

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View Join the P434 Implementation Working Group

Join the P434 Implementation Working Group

We’re looking for members to join our P434 Implementation Working Group, created to support Parties impacted by Modification P434 ‘Half Hourly Settlement for UMS Metering Systems’. 

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View Approval of CP1574. CP1575 and CP1576 for implementation on 2 November 2023

Approval of CP1574. CP1575 and CP1576 for implementation on 2 November 2023

On 6 June 2023 the Supplier Volume Allocation Group (SVG) approved CP1574 ‘Improving the use of the D0215 data flow in the relevant industry processes and the Imbalance Settlement Group (ISG) approved CP1575 ‘Permitting the use of busbar voltage transformers within metering Codes of Practice 1 and 2’ for implementation on 2 November 2023 as part of the standard November 2023 BSC Release.

On 8 June 2023 the BSC Panel approved CP1576 ‘New Interconnector Fuel Type Category: Viking Link’ for implementation on 2 November 2023 as part of the standard November 2023 BSC Release.

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View The BSC has become gender neutral

The BSC has become gender neutral

We corrected 315 instances where masculine pronouns or terms are used, such as “Chairman”, “he”, “his” and “him” of the BSC and 198 cases of gendered pronouns across 39 Code Subsidiary Documents (CSDs).

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View What are Radio Teleswitch System meters and how many are there in Great Britain?

What are Radio Teleswitch System meters and how many are there in Great Britain?

This is the first in a series of articles on Radio Teleswitch System (RTS) meters.

Long before smart meters, an option for variable rate meters was the Radio Teleswitch System, which relied on a radio signal for timing information. Since April 2020 the costs for the RTS service have been recovered through the Balancing and Settlement Code (BSC) charging arrangements. They were previously borne by the Energy Networks Association (ENA). The cost for the RTS service is a direct pass through to BSC Parties, and it has increased from £1.5m in 2022/23 to £4.9m in our 2023/24 business plan.

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View Changes to BSC Parties and Qualified Persons: June 2023

Changes to BSC Parties and Qualified Persons: June 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in June. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Credit Assessment Load Factor values for Autumn 2023: 1 August appeal deadline

Credit Assessment Load Factor values for Autumn 2023: 1 August appeal deadline

The Credit Assessment Load Factor (CALF) values for the Autumn 2023 BSC Season, which runs from 1 September 2023 to 30 November 2023, are available from the BSC Portal. If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

  • BSC Portal > Financial and Credit > Credit / Credit Alerting
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View Get involved with the Performance Assurance Working Group

Get involved with the Performance Assurance Working Group

Calling all industry members – we want your input as members of our Performance Assurance Working Group (PAWG). The PAWG is one of several working groups set up by Elexon to deliver the technical overview of the Market-wide Half Hourly Settlement (MHHS) scope.

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View We are upgrading our BSC Change Training videos

We are upgrading our BSC Change Training videos

We want to give you the tools to help you understand how the change process works.

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View May 2023 CPC Consultation

May 2023 CPC Consultation

Change Proposal Circulars (CPCs) are a consultations batch for Change Proposals (amendments to BSC subsidiary documents) and the request of Impact Assessment responses to Change Proposals from Industry Participants.

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View Submission of Generation and Demand Capacity for Summer 2023 BSC Season

Submission of Generation and Demand Capacity for Summer 2023 BSC Season

The Summer BSC Season begins on 1 June 2023 and if you are using the Elexon Kinnect Customer Solution, the deadline for submitting your Generation and Demand Capacity (GC/DC) values for the Season is 16 May 2023.

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View Join our Work Group for Issue 107 ‘Review of BSC Section N – Clearing, Invoicing & Payment’

Join our Work Group for Issue 107 ‘Review of BSC Section N – Clearing, Invoicing & Payment’

We are looking for members to join a Work Group for Issue 107 ‘Review of BSC Section N – Clearing, Invoicing & Payment’ which will look at areas and associated processes that are currently pain points experienced by the Industry.

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View Supplier Volume Allocation Non-Final Demand Declarations

Supplier Volume Allocation Non-Final Demand Declarations

Elexon implemented Balancing and Settlement Code Modification P419 ‘Enhanced Reporting of Demand Data to the NETSO to facilitate BSUoS Reform’ in February 2023.

P419 introduced a process to allow Non-Final Demand Operators and Suppliers to declare Supplier Volume Allocation (SVA) Non-Final Demand Facilities through BSC processes so that they would be exempt from Balancing Services Use of System (BSUoS) Charges. 

  • Find out more about P419
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View Changes to how some BSC Portal reports are accessed

Changes to how some BSC Portal reports are accessed

The following datasets will no longer be published on the following Elexon BSC Portal pages from Thursday 4 May 2023. This is due to the internal migration of our Settlement Administration Agent (SAA) system. However, replacement pages have been created to enable you to access the datasets.

Read More
View Deployment of Error Failure Resolution (EFR) against Settlement Risk 008

Deployment of Error Failure Resolution (EFR) against Settlement Risk 008

This is of interest to all Suppliers with Non Half Hourly portfolios

At its meeting on 27 April 2023, the Performance Assurance Board (PAB) approved the deployment of EFR for Settlement Risk 008; the risk that Supplier Volume Allocation (SVA) metered data is not processed or transferred correctly, or is not processed at all.

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View Latest Trading Dispute Decisions and Determinations

Latest Trading Dispute Decisions and Determinations

This page sets out the latest information on trading dispute decisions and determinations.

Read More
View Give your feedback on the MHHSP Qualification tranche timeline

Give your feedback on the MHHSP Qualification tranche timeline

The draft Market-wide Half-Hourly Settlement Programme (MHHSP) Approach and Plan states that participants will be allocated to Qualification tranches in May 2024. The Code Bodies want your feedback on the allocation timeline and approach by Tuesday 2 May 2023.

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View Elexon’s Potential BSC Changes dashboard gets upgraded

Elexon’s Potential BSC Changes dashboard gets upgraded

Following our request for customer feedback at the most recent Upcoming BSC Change Proposals meeting on 23 March, the Potential BSC Changes awaiting initial consideration dashboard has been upgraded,

Read More
View Decommissioning the TIBCO service could lead to significant savings

Decommissioning the TIBCO service could lead to significant savings

The Balancing and Settlement Code Panel has agreed to Elexon’s recommendation to raise a Modification to remove our obligation to provide Balancing Mechanism Reporting Service (BMRS) data through the High Grade communications line service. 

Read More
View Build up to go live of new Settlement Administration Agent

Build up to go live of new Settlement Administration Agent

As part of our  Elexon Kinnect programme we have been building a new Settlement Solution which replaces services of the Settlement Administration Agent (SAA) on our new cloud platform.

Read More
View Credit Assessment Load Factor values for Summer 2023: 2 May appeal deadline

Credit Assessment Load Factor values for Summer 2023: 2 May appeal deadline

The Credit Assessment Load Factor (CALF) values for the Summer 2023 BSC Season, which runs from 1 June 2023 to 31 August 2023, are available from the BSC Portal. If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

  • BSC Portal > Financial and Credit > Credit / Credit Alerting
Read More
View Obsolete BMRS email alerts sent to BSC Portal subscribers

Obsolete BMRS email alerts sent to BSC Portal subscribers

There was an issue with Elexon BSC Portal publishing email alerts. This has now been fixed but after fixing this, the BSC Portal sent email alerts for backfilled data.

These email alerts are not for current system events and can be ignored.

We apologise for the inconvenience caused by this issue.

Read More
View Register an interest in the Network Gas Supply Emergency Settlement Validation Committee

Register an interest in the Network Gas Supply Emergency Settlement Validation Committee

Elexon is inviting industry participants to register their interest in joining the Network Gas Supply Emergency Settlement Validation Committee (NGSESVC). Please note that there is no immediate requirement for this committee.

Read More
View Final 2023/24 Elexon business plan now available

Final 2023/24 Elexon business plan now available

Source: Elexon Corporate Website
Read More
View Future of BSC Documents mini-consultation responses now available

Future of BSC Documents mini-consultation responses now available

The responses to the ‘Mini-consultation on the future of the SVA Data Catalogue, the User Requirements Specifications and BSC guidance documents’ have now been published.

Read More
View Further update on monitoring of the meter stock shortage, driven by global materials availability and supply chain challenges

Further update on monitoring of the meter stock shortage, driven by global materials availability and supply chain challenges

Due to a global shortage of materials and disruption of global supply chains, there is a shortage of semi-conductors among other crucial components, which impacts the ability for Meter manufacturers to produce and supply electricity Meters, including those required for Settlement under the BSC.

This shortage of Settlement Meters impacts on new connections and fault resolution in both the Supplier Volume Allocation (SVA) and Central Volume Allocation (CVA) markets, and consequently impacts the integrity and accuracy of Settlement.

Read More
View Confirmation of Code of Practice Compliance and Protocol Approval – CP1527

Confirmation of Code of Practice Compliance and Protocol Approval – CP1527

We implemented Change Proposal (CP) 1527 ‘Increase the minimum data storage capacity for Settlement Outstations and mandate specific selectable integration periods for Metering Codes of Practice’ on 30 June 2022, as part of the June 2022 BSC Release.

CP1527 incremented the Issue (and version) numbers of the below CoPs, by one.

Read More
View Join the Elexon Ownership Consultation webinar with DESNZ

Join the Elexon Ownership Consultation webinar with DESNZ

Source: Elexon corporate website

The Department for Energy Security and Net Zero (DESNZ) is hosting a webinar on their Elexon Ownership Consultation response from 13:00-14:30 on Thursday 30 March 2023.

Read More
View Decision on future ownership of Elexon

Decision on future ownership of Elexon

Source: Elexon corporate website

Government and Ofgem have published their response today (23 March) on the future ownership of Elexon. Elexon is currently owned by National Grid and our ownership model needs to change as part of the transition to the Future System Operator Model.

Read More
View Digital Code upgraded with new features

Digital Code upgraded with new features

We have upgraded the Digital Code with some additional features to help you find the information you need from the BSC.

Read More
View Decommissioning the TIBCO Service in March 2024

Decommissioning the TIBCO Service in March 2024

We have written to users of the TIBCO software service and the High Grade communications line about our intention to decommission them in March 2024.

The TIBCO software and the High Grade line supply users with near real time updates on wholesale market data from our Balancing Mechanism Reporting Service (BMRS).

Read More
View BSC Panel approves the first new data set for public Peer Comparison

BSC Panel approves the first new data set for public Peer Comparison

Last week Elexon issued a formal notice to Suppliers of additional data sets having been approved to be published under Peer Comparison. This data has been approved for publication under the provisions introduced by BSC Modification P427 ‘Publication of Performance Assurance Parties’ impact on Settlement Risk’.

Read More
View Credit Assessment Load Factor (CALF) values for the summer 2023 BSC Season

Credit Assessment Load Factor (CALF) values for the summer 2023 BSC Season

The Credit Assessment Load Factor (CALF) values for the summer 2023 BSC Season, which runs from 1 June 2023 to 31 August 2023, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the ELEXON Portal.

If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

Read More
View Elexon to publish Settlement performance league tables under Modification P427

Elexon to publish Settlement performance league tables under Modification P427

From 23 February 2023, under Modification P427, Elexon will be able to publish the Settlement performance data of Performance Assurance Parties (PAPs)* under the Peer Comparison Performance Assurance Technique.

Read More
View Join the Imbalance Settlement Group Committee to help oversee ISG processes

Join the Imbalance Settlement Group Committee to help oversee ISG processes

We are looking for new members for the Imbalance Settlement Group (ISG) Committee.

Read More
View Submission of Generation and Demand Capacity (GC/DC) for the Spring 2023 BSC Season

Submission of Generation and Demand Capacity (GC/DC) for the Spring 2023 BSC Season

The Spring BSC Season begins on 1 March. If you are using the Elexon Kinnect Customer Solution, the deadline for submitting your GC and DC values for the season is 14 February.

Read More
View Functionality added to Kinnect Customer Solution for Modifications P376 and P419

Functionality added to Kinnect Customer Solution for Modifications P376 and P419

As part of the 23 February 2023 Balancing and Settlement Code release, two Modifications (P376 and P419) will be implemented using our Customer Solution, one of the three pillars of Elexon Kinnect, our cloud platform.

We will publish guidance documents for companies that want to participate in the P376 and P419 reforms later this month.

Read More
View Give your feedback on BSC Credit Cover Arrangements

Give your feedback on BSC Credit Cover Arrangements

Ahead of the first meeting of BSC Issue 106 ‘Review of BSC Credit Cover Arrangements’, we are seeking feedback from stakeholders via a short (5-10 min) survey. Survey responses will be used to inform the meeting materials and focus areas for the first meeting, and must be submitted by 17:00 on Wednesday 15 February.

Read More
View Get advance notice of upcoming Change Proposals

Get advance notice of upcoming Change Proposals

Would you like to get visibility of upcoming Change Proposals to the BSC? Sign up for an opportunity to feedback on upcoming Changes.

Read More
View Treatment of De-energised Metering Systems in Charging Data Reported to National Grid

Treatment of De-energised Metering Systems in Charging Data Reported to National Grid

We implemented the P402 Alternative Modification ‘Enabling reform of residual network charging as directed by the Targeted Charging Review’ in the February 2022 Balancing and Settlement Code (BSC) Release.  

Read More
View New 2023/2024 Estimated Transmission Losses Adjustment values published

New 2023/2024 Estimated Transmission Losses Adjustment values published

Following the implementation of  Modification P350 on 1 April 2018, ETLMO values have been calculated for each season across the 2023/24 BSC Year. The Imbalance Settlement Group approved the revised Estimated Transmission Losses Adjustment (ETLMO) values for use from 1 April 2023 at its January 2023 meeting.

Read More
View Avanade appointed as the Data Integration Platform Service Provider

Avanade appointed as the Data Integration Platform Service Provider

Following a thorough procurement process, the Market-wide Half-Hourly Settlement (MHHS) Programme and Elexon are pleased to announce the appointment of Avanade with their Microsoft Azure infrastructure solution as the Data Integration Platform Service Provider (DIPSP) for the Programme. 

Read More
View BSC Panel response to Energy Code Governance Reform: Call for Input

BSC Panel response to Energy Code Governance Reform: Call for Input

Read More
View Are you participating in the Demand Flexibility Service?

Are you participating in the Demand Flexibility Service?

If you’re participating in the Demand Flexibility Service you need to associate the NGC BM Units that you have been provided by the National Grid Electricity System Operator with your Base Supplier BM Units.

Read More
View Are you interested in becoming a member of the Credit Committee?

Are you interested in becoming a member of the Credit Committee?

The Credit Committee (CC) is one of several Balancing and Settlement Code (BSC) committees which play a role in managing and governing the code. The CC, which is responsible for all BSC matters relating to the Credit Assessment Price (CAP), is looking for new members. 

Read More
View Changes to SAA Settlement Report sub-flows 1, 2 and 4 (SAA I014)

Changes to SAA Settlement Report sub-flows 1, 2 and 4 (SAA I014)

The February 2023 Release planned go-live is 23 February 2023; this release includes changes to the SAA-I014 Settlement Administration Agent (SAA) Settlement Report sub-flows 1, 2 & 4. From 23 February 2023, all BSC Parties will receive Version 12 of the SAA-I014, sub-flow 1 or 4, as default and Version 10 of the SAA-I014 will no longer be available.

Read More
View Credit Assessment Load Factor values for Spring 2023: 1 February 2023 appeal deadline

Credit Assessment Load Factor values for Spring 2023: 1 February 2023 appeal deadline

The Credit Assessment Load Factor (CALF) values for the Spring 2023 BSC Season, which runs from 1 March 2023 to 31 May 2023, are available from the BSC Portal. If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

  • BSC Portal > Financial and Credit > Credit / Credit Alerting
Read More
View Latest Market Domain Data Circulars: January 2023

Latest Market Domain Data Circulars: January 2023

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Read More
View Elexon’s 2023/24 business plan available for feedback

Elexon’s 2023/24 business plan available for feedback

Source: Elexon Corporate Website

We have published our 2023/24 business plan which explains how we will provide service excellence and customer value, while delivering the BSC rule changes needed to help support Net Zero.

Read More
View Elexon welcomes Ian Graves to the Board as a new industry Non-executive Director

Elexon welcomes Ian Graves to the Board as a new industry Non-executive Director

Source: Elexon corporate website

Elexon has appointed Ian Graves to the Elexon Board. Ian, who takes up his post from 1 January 2023, fills the vacant position that opened up when Sara Vaughan was appointed as Chair of the Elexon Board and Balancing and Settlement Code (BSC) Panel.  

Read More
View New Insights Solution ‘data push’ service goes live

New Insights Solution ‘data push’ service goes live

The Elexon Insights Solution data platform Real-time Information Service (IRIS) is now available.   

Read More
View Latest Market Domain Data Circulars: December 2022

Latest Market Domain Data Circulars: December 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Read More
View Submission of Generation and Demand Capacity (GC/DC) for the Winter 2022 BSC Season

Submission of Generation and Demand Capacity (GC/DC) for the Winter 2022 BSC Season

The Winter BSC Season 2022 begins on 1 December.  If you are using the Elexon Kinnect Customer Solution, the deadline for submitting your GC and DC values for the season is 16 November.

Read More
View Latest Market Domain Data Circulars: November 2022

Latest Market Domain Data Circulars: November 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Read More
View BSC Insights: Using Open Data to map the financial impacts of failed Suppliers

BSC Insights: Using Open Data to map the financial impacts of failed Suppliers

In this BSC Insight, Muhammad Raees Usman, Product Analyst in our Analysis & Insight Team, outlines how you can use newly Open Data from the BSC Modification P398 Open Data Request service to gain an insight into the energy market. He does this in view of the unprecedented market conditions experienced in the second half of 2021 and how these conditions led to a substantial number of Supplier default events. The article also provides an insight in to how Python can be used to ingest Open data files for analysis.

Read More
View Elexon’s response to BEIS Net Zero Review

Elexon’s response to BEIS Net Zero Review

Source: Elexon corporate website

We have published our response to the BEIS Net Zero Review. In our response, we explain why Elexon believes that innovation across the market needs to accelerate. We recognise the importance of the Net Zero Review and share our comments from the perspective of more than 20 years’ experience working with Ofgem, government and industry.

Read More
View New features added to the digital code

New features added to the digital code

We launched our digital code site in April 2022 to recreate 460 Balancing and Settlement Code (BSC) documents in a far easier to browse format. The digital code is now the single source for BSC documents and around 400 people are using it each day. The PDFs of all of the code documents have been retired from main BSC website (www.elexon.co.uk) and will now redirect you to the digital code equivalent.

Read More
View Latest Market Domain Data Circulars: October 2022

Latest Market Domain Data Circulars: October 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Read More
View Supplier Charges values and GSP Group liability caps: 2022/23

Supplier Charges values and GSP Group liability caps: 2022/23

Elexon has calculated the annual Grid Supply Point (GSP) Group liability caps and Supplier Charge values for the BSC Year 2022/23. 

  • 2022/23 GSP Group Take, Supplier Charges and GSP Caps
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View Elexon to administer payments to Suppliers for the Government’s energy price guarantee

Elexon to administer payments to Suppliers for the Government’s energy price guarantee

Following the approval of Balancing and Settlement Code Modification (BSC) P446 ‘Energy Price Guarantee Scheme for domestic customers’ by Ofgem, Elexon is pleased to have been appointed as Scheme Administrator.

Read More
View Elexon responds to the Government and Ofgem’s consultation on ownership of the company

Elexon responds to the Government and Ofgem’s consultation on ownership of the company

Source: Elexon corporate website

We have published our response to the consultation by BEIS and Ofgem on the ownership of Elexon, stating our preference for industry ownership through a ‘federated model’.

Read More
View Market Index Definition Statement Review 2022

Market Index Definition Statement Review 2022

The Market Index Definition Statement (MIDS) is annually reviewed by the BSCCo. on behalf of the BSC Panel, to ensure that the Market Index Price is providing a reasonable reflection of the price of wholesale electricity in the short term market.

Read More
View Changes to Settlement Calendars due to additional Bank Holiday on 19 Sept 2022

Changes to Settlement Calendars due to additional Bank Holiday on 19 Sept 2022

Due to the announcement of an additional Bank Holiday on 19 September 2022 for the Queen’s funeral, Elexon are currently working through re-aligning all impacted Settlement Calendars.

Read More
View BSC Panel’s letter to Ofgem on consultation on the Future Ownership of Elexon

BSC Panel’s letter to Ofgem on consultation on the Future Ownership of Elexon

Michael Gibbons CBE, FEI, BSC Panel Chair, and Dr. Phil Hare, BSC Panel Deputy Chair, have sent a letter on behalf of the BSC Panel as part of the Consultation on the Future Ownership of Elexon that Ofgem issued on 14 July 2022.  BEIS and Ofgem have jointly published the consultation on the change in ownership of Elexon. This follows the publication of the Future System Operator (FSO) consultation response on 6th April 2022.

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View Withdrawing the CAP of £510/MWh resulting in CAP staying at £415/MWh

Withdrawing the CAP of £510/MWh resulting in CAP staying at £415/MWh

The Credit Committee has decided to withdraw the notified Credit Assessment Price (CAP) of £510/MWh before implementation on 7 September 2022. This means the current CAP value of £415/MWh remains valid at least until it is replaced by the next scheduled CAP of £475/MWh on 16 September.

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View Credit Assessment Load Factor values for Autumn 2022 season: 1 November 2022 appeal deadline

Credit Assessment Load Factor values for Autumn 2022 season: 1 November 2022 appeal deadline

The Credit Assessment Load Factor (CALF) values for the Winter 2022 BSC Season, which runs from 01 December 2022 to 28 February 2023, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the Elexon Portal.

If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

Read More
View Monitoring of the meter stock shortage, driven by global materials availability and supply chain challenges

Monitoring of the meter stock shortage, driven by global materials availability and supply chain challenges

Due to a global shortage of materials and the impact of COVID-19 on global supply chains, there is a shortage of semi-conductors among other crucial components, which impacts the ability of Meter manufacturers to produce and supply electricity Meters, including those required for Settlement under the BSC.

This shortage of Settlement Meters impacts on new connections and fault resolution in both the Supplier Volume Allocation (SVA) and Central Volume Allocation (CVA) markets, and consequently impacts the integrity and accuracy of Settlement.

Read More
View BSC Insights: Using the Insights Solution to predict Capacity Market Notices

BSC Insights: Using the Insights Solution to predict Capacity Market Notices

In this BSC Insight, Angus Fairbairn outlines how you can use forecast data from the Kinnect Insights Solution to monitor generation, demand and margins preceding events on the GB Electricity System. He does this through the lens of the summer 2022 heatwave and the resulting Capacity Market Notices (CMNs).

Read More
View Autumn 2022 BSC Season Changes

Autumn 2022 BSC Season Changes

As you may be aware, the Credit Assessment Price (CAP) is due to increase in the next few days. Your BM Unit CALF Values and your declared Generation Capacity (GC) and Demand Capacity (DC) values are used in the Credit Assessment Energy Indebtedness (CEI) calculation of your Credit Indebtedness.

With the recent increases in the CAP, it is important to check whether your DC and GC values are correct and that you have reviewed the Credit Assessment Load Factor (CALF) values that Elexon has calculated to ensure that they accurately represent the expected Balancing Mechanism (BM) Unit activity.

Read More
View Latest Elexon Board circular to BSC Parties

Latest Elexon Board circular to BSC Parties

Source: Elexon corporate website

In this latest Elexon Board circular, the Board Chair provides a progress update on the industry’s Market-wide Half Hourly Settlement (MHHS) programme and our digitalisation programme. It also includes a reflection on the ownership of Elexon, and the Board’s view on current issues impacting the market.

Read More
View BSC Insights: How we use the Annual Demand Ratio to maintain accuracy of Settlement data

BSC Insights: How we use the Annual Demand Ratio to maintain accuracy of Settlement data

In this insight article Mehdi Jafari and Jason Jackson explain what the Annual Demand Ratio (ADR) is, how it helps us maintain the accuracy of Settlement data, and what we are doing to resolve potential errors indicated by the ADR.

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View Elexon welcomes Sara Vaughan as its new Board and BSC Panel Chair

Elexon welcomes Sara Vaughan as its new Board and BSC Panel Chair

Source: Elexon corporate website

Following a formal external recruitment process involving both the Elexon Board and the BSC Panel, Sara Vaughan has been appointed as the new Elexon Board and BSC Panel Chair. Sara will be succeeding Michael Gibbons who has been the Chair for the last nine years.

Read More
View BSC Insights: The Insights solution puts data on the wholesale market at your fingertips

BSC Insights: The Insights solution puts data on the wholesale market at your fingertips

In this BSC Insight article by Reza Nia, Head of Analysis & Insight,  explains why Elexon developed a new data service (the Insights Solution) and the benefits of it to BSC Parties and other stakeholders. All of the Insights Solution data is available to download for free. 

Read More
View Suppliers to register MSID Pairs for Additional Primary BM Units providing Balancing Services

Suppliers to register MSID Pairs for Additional Primary BM Units providing Balancing Services

If you are a Supplier that has Additional BM Units with the Final Physical Notification (FPN) Flag set to Yes, then you will need to register any existing or future MSID Pairs.

Suppliers that need to register their MSID Pairs must send the MSID Pair allocation (P0278) to the SVAA by the deadline of 6 October 2022.

Read More
View Elexon approves first request for open data

Elexon approves first request for open data

From today anybody regardless of whether they work in the electricity sector or not can get access to the same level of data that is used for most of Elexon’s reporting on electricity Settlement.

Read More
View Updated Risk documentation is now available

Updated Risk documentation is now available

We have published updated versions of the 2022/23 Risk Evaluation Register (RER) and the Risk Operating Plan (ROP) following a review completed in July 2022.

Read More
View Grid Supply Point Group meter system inspections in Northern Scotland

Grid Supply Point Group meter system inspections in Northern Scotland

Read More
View Voting begins in the 2022 BSC Panel member elections

Voting begins in the 2022 BSC Panel member elections

From today voting is open for the 2022 BSC Panel elections. You can vote until close of play on 26 August. Below are the six candidates that could be elected (or re-elected) to serve on the Panel.

Read More
View Annual BSC seminar and meeting: what did you miss?

Annual BSC seminar and meeting: what did you miss?

Source: Elexon corporate website

On Thursday 14 July, Elexon hosted its annual meeting and seminar. For the first time since 2019, the meeting was held in our office although Stakeholders were also able to join online.

Thursday’s meeting was the first BSC seminar for Elexon’s new Chief Executive Simon McCalla. It was also the last seminar for Michael Gibbons, Chair of the Elexon’s Board and the BSC Panel.

Read More
View Elexon Board Directors election or re-election results 2022

Elexon Board Directors election or re-election results 2022

Source: Elexon corporate website

In keeping with best practice for corporate governance and accountability, all Elexon Board Directors were subject to election or re-election via a vote at Elexon’s Annual BSC Seminar held on 14 July 2022.

Read More
View New BSC Code of Practice (CoP11) sets standards for accuracy of Asset Metering Systems

New BSC Code of Practice (CoP11) sets standards for accuracy of Asset Metering Systems

A new ‘Code of Practice (CoP11) for the Metering of Balancing Services Assets for Settlement Purposes’ has been introduced, defining the minimum BSC requirements for Asset Metering Systems.

Read More
View Have your say: Changing the PAB Settlement performance management approach

Have your say: Changing the PAB Settlement performance management approach

Elexon has recently obtained feedback from Suppliers that the current Settlement monitoring approach may act as a disincentive for Suppliers to move sites to elective Half Hourly (HH) Settlement in preparation for Market-wide Half Hourly Settlement (MHHS). This is because moving ‘good’ performing sites to HH Settlement may reduce the performance of their remaining Non Half Hourly portfolio.

Read More
View Elexon’s 2021/22 Annual Report & Financial Statements published

Elexon’s 2021/22 Annual Report & Financial Statements published

Source: Elexon Corporate Website

The reports explain our performance against our strategic objectives and our actual spending over the year, compared with our budget. Read highlights or download the full report.

Read More
View Latest Market Domain Data Circulars: July 2022

Latest Market Domain Data Circulars: July 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Read More
View Help shape our Settlement & Invoicing services

Help shape our Settlement & Invoicing services

We are looking to engage with interested parties through our Settlement and Invoicing Solution User Group. Participating in the User Group will enable you to help shape the future design of the solution on our new digital platform, Elexon Kinnect.

Read More
View Kinnect Customer Solution: New Account Management features from 20 June 2022

Kinnect Customer Solution: New Account Management features from 20 June 2022

We have been working on changes to the Elexon Kinnect Customer Solution which delivers functional enhancements to the contacts, authorised signatories, addresses and bank details elements of the Elexon Kinnect Customer Solution. These changes are usable from 20 June 2022 and provide benefits for existing customers and new market entrants.

Read More
View New TLFA-I014 Data for Summer 2022 on the Elexon Portal

New TLFA-I014 Data for Summer 2022 on the Elexon Portal

Following the Grid Supply Point (GSP) Group Metering Issues identified in GSP Groups _C and _J, Elexon has looked at further impacts the corrected data could have on Settlement processes.

After completing some additional analysis, we identified that there were some impacts on Transmission Loss Factors (TLFs).  These impacts were small, mostly affecting the Summer 2022 period.

Read More
View Latest Market Domain Data Circulars: June 2022

Latest Market Domain Data Circulars: June 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Read More
View Elexon Kinnect Insights Solution now available

Elexon Kinnect Insights Solution now available

We have been developing an exciting new data and insights platform, the Elexon Kinnect Insights Solution, which builds on our existing Balancing Mechanism Reporting Service (BMRS) to offer a richer and more detailed data service for GB electricity.

Read More
View Credit Assessment Load Factor (CALF) values for the Autumn 2022 BSC Season available

Credit Assessment Load Factor (CALF) values for the Autumn 2022 BSC Season available

The Credit Assessment Load Factor (CALF) values for the Autumn 2022 BSC Season, which runs from 1 September 2022 to 30 November 2022, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the Elexon Portal.

If you are the Lead Party of a non-Credit Qualifying Balancing Mechanism Unit (BMU), you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity by Monday 1 August 2022.

Read More
View PAB approves changes for monitoring Settlement performance standards

PAB approves changes for monitoring Settlement performance standards

At its May 2022 meeting, the Performance Assurance Board (PAB) undertook a review of its approach to managing the Settlement Performance standard. The PAB has approved two changes to the Settlement Performance Standard.

Read More
View Technical Assurance Scope 2022-2023

Technical Assurance Scope 2022-2023

The Technical Assurance Scope contains the checks we will perform during the period. A ‘within period revision’ to the scope can also be made with approval from the PAB. The check will then take place anytime during that BSC year.

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View Gearing up for go-live of faster switching reforms

Gearing up for go-live of faster switching reforms

Elexon is helping the industry to get set for the go-live of the Central Switching Service (CSS) this summer as part of Ofgem’s Switching Programme.

The CSS, which will be governed by version 3.0 of the Retail Energy Code (REC), will provide a single, dual fuel switching process for gas and electricity. The aim is to make switching faster and more reliable.

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View All Trading Parties to review the Trading Party Groups Register by 20 June 2022

All Trading Parties to review the Trading Party Groups Register by 20 June 2022

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View Ending the ‘Coronavirus Disapplication Period’ for Supplier Charges

Ending the ‘Coronavirus Disapplication Period’ for Supplier Charges

On 12 May, we issued BSC Circular EL03581, which gave notice to BSC Parties that the ‘Coronavirus Disapplication Period’ for Supplier Charges will be ending. This means that, from September 2022, Supplier Charges for SP08 will be reapplied from the September Performance Assurance Reporting and Monitoring System (PARMS) Reporting Period.

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View How we’re helping to spot GSP metering errors sooner

How we’re helping to spot GSP metering errors sooner

In the past eight years, we have identified five Grid Supply Point (GSP) Metering errors, equal to around 1.4% of the total number of GSP Meters. These errors have caused energy to be recorded incorrectly. As any unaccounted energy is allocated to BSC Parties through GSP Group Correction and Transmission Losses, such metering errors can present a large impact on the allocation of energy and therefore the accuracy of Trading Charges to BSC Parties.

We are publishing a beta version of our GSP change-point detection model to gather feedback from participants and help us identify other areas where central analytics and reporting could support industry in mitigating risks to Settlement.

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View Update on investigations into Settlement errors at two GSP groups

Update on investigations into Settlement errors at two GSP groups

Elexon has been investigating errors in Settlement related to two Grid Supply Point (GSP) Groups: South Eastern GSP Group (Group _J); and London GSP Group (Group _C). This follows our continued monitoring of the Annual Demand Ratio (ADR).

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View Ofgem confirms Elexon as the Capacity Market Advisory Group secretariat

Ofgem confirms Elexon as the Capacity Market Advisory Group secretariat

We are delighted that today, 9 May, Ofgem confirmed its decision to appoint Elexon as the independent Capacity Market Advisory Group (CMAG) secretariat, subject to a BSC Modification being raised and approved to enable us to do the work.

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View Elexon to partner with Icebreaker One to provide Net Zero data

Elexon to partner with Icebreaker One to provide Net Zero data

Elexon will be joining forces with industry not-for-profit Icebreaker One as part of their government-supported Open Energy programme, which seeks to revolutionise the way data is shared across the energy sector to make sure the UK achieves its Net Zero goals. 

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View Do you need support to prepare for Asset Metering (Modification P375)?

Do you need support to prepare for Asset Metering (Modification P375)?

On 30 June 2022, Elexon will implement Modification P375 ‘Settlement of Secondary BM Units using metering behind the site Boundary Point‘.  This is a major change to the Wholesale Electricity Trading Arrangements, which supports Net Zero by creating more opportunities for smaller asset owners to provide balancing services.  

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View Latest Market Domain Data Circulars: May 2022

Latest Market Domain Data Circulars: May 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

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View Latest Technical Assurance findings reports – April 2022

Latest Technical Assurance findings reports – April 2022

After every Technical Assurance audit we produce a non-confidential findings report that is presented to the Performance Assurance Board (PAB).

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View Changes to BSC Parties and Qualified Persons: May 2023

Changes to BSC Parties and Qualified Persons: May 2023

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in May. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Second BSC Sandbox trial to increase opportunities for flexibility services will launch in September

Second BSC Sandbox trial to increase opportunities for flexibility services will launch in September

Centrica is due to begin a trial this September where controllable storage heaters will provide demand-side response (DSR) when needed, by dialling down their demand. 

It is the second trial which has been approved by Ofgem to use Elexon’s Balancing and Settlement Code (BSC) Sandbox. The Sandbox allows innovators to trial concepts in a live market environment without having to meet all the usual BSC rules.

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View Ofgem confirms Elexon will operate key IT data platform to support MHHS

Ofgem confirms Elexon will operate key IT data platform to support MHHS

Yesterday (21 April) Ofgem confirmed that the Balancing and Settlement Code will be used to govern and fund the new Data Integration Platform (DIP) to support Market-wide Half Hourly Settlement (MHHS). This means that Elexon will manage the DIP service provider, which is currently being procured through the MHHS Programme.

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View Simon McCalla talks about his new role as Elexon’s Chief Executive

Simon McCalla talks about his new role as Elexon’s Chief Executive

Source: Elexon corporate website

I am Simon McCalla and I started as Elexon’s new Chief Executive at the start of April 2022. I’m excited to be joining Elexon and the energy industry at what is both a challenging and critical period.

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View New system to track electricity by the hour launched

New system to track electricity by the hour launched

Source: Elexon Corporate website

A consortium of leading energy organisations led by hourly certificate focused start-up Granular and including European power market Nord Pool, Elexon, Energy Systems Catapult and Unicorn, is launching a new mechanism for hourly renewable energy certificates in Great Britain.

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View Elexon views about decisions on the Future System Operator role and the codes review

Elexon views about decisions on the Future System Operator role and the codes review

Today the Department for Energy Department for Business, Energy and Industrial Strategy (BEIS) and Ofgem jointly responded to the consultations they published in July 2021 on a Future System Operator (FSO), and reforming the energy codes.  National Grid ESO will move away from National Grid plc and become an independent, publicly owned FSO.

As part of that process there will also be a consultation on the ownership of Elexon, which is currently owned by National Grid ESO. 

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View Latest Market Domain Data Circulars: April 2022

Latest Market Domain Data Circulars: April 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

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View New digital version of the Balancing and Settlement Code is now live

New digital version of the Balancing and Settlement Code is now live

This article, written by Lawrence Jones, Head of Rules Management at Elexon, talks about a new site we have built so that the BSC and related documents are available digitally. This helps companies and other people to browse the documents using  improved navigation, web pages instead of PDFs, and a site search. 

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View Digital Code – digital version of BSC available

Digital Code – digital version of BSC available

Elexon has been working on an exciting project to develop a brand new site that will enable you to have much easier access to the Balancing and Settlement Code (BSC) and its subsidiary documents, ‘the Digital Code’.

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View Transmission Loss Factor values for Spring 2022 Part A Season available

Transmission Loss Factor values for Spring 2022 Part A Season available

Source: BSC Portal

The BM Unit Specific TLF values for the Spring 2022 Part A BSC Season, which runs from 1 April 2022 to 31 May 2022, are available on the Elexon Portal under the TLFs Determination page. This file provides the TLF for each BM Unit that is registered to be active during this period.

  • BSC Portal > Operational Data > TLFs determination
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View Latest Prevailing Network Mapping Statement available

Latest Prevailing Network Mapping Statement available

Source: BSC Portal
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View Settlement on ‘short’ clock change day: 27 March 2022

Settlement on ‘short’ clock change day: 27 March 2022

The clock change this weekend will result in a ‘short’ day which will impact Settlement periods and contract notifications. On a ‘short’ clock change day, there are only 46 Settlement Periods instead of the normal 48.

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View Credit Assessment Price to decrease to £250/MWh from 1 April 2022

Credit Assessment Price to decrease to £250/MWh from 1 April 2022

Source: Elexon Circular (EL03549)
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View Elexon names Simon McCalla as its new Chief Executive Officer

Elexon names Simon McCalla as its new Chief Executive Officer

Source: Elexon Corporate Website

Simon McCalla has been appointed as the new permanent CEO of Elexon.

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View Investigations into potential Settlement errors in two GSP Groups

Investigations into potential Settlement errors in two GSP Groups

Elexon is investigating potential errors in Settlement related to the South Eastern GSP (Grid Supply Point) Group (Group _J) and the London GSP Group (Group _C). This follows our continued monitoring of the Annual Demand Ratio (ADR).

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View Reconciliation charges to be introduced at next Settlement Run

Reconciliation charges to be introduced at next Settlement Run

National Grid ESO has resubmitted Balancing Services Adjustment Actions (BSAA) and Balancing Services Adjustment Data (BSAD) files for multiple settlement dates throughout 2021. The period covers January through to November 2021 and is across 69 distinctly impacted Settlement Periods.

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View Latest Market Domain Data Circulars: March 2022

Latest Market Domain Data Circulars: March 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

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View Have your say on Metering shortages and supply chain issues

Have your say on Metering shortages and supply chain issues

Elexon has been monitoring the on-going impacts of component shortages and supply chain challenges which are impacting on the availability of electricity Meters and related equipment. To help us understand the extent of these challenges, we have created a short survey to assess the impact on the industry.

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View Credit Assessment Load Factor (CALF) values for the Summer 2022 BSC Season available

Credit Assessment Load Factor (CALF) values for the Summer 2022 BSC Season available

The Credit Assessment Load Factor (CALF) values for the Summer 2022 BSC Season, which runs from 1 June 2022 to 31 August 2022, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the Elexon Portal.

If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

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View Request for feedback on Newscast

Request for feedback on Newscast

We have been making changes to the layout and content on Newscast, which is our weekly newsletter that features key information about the industry and BSC activities.

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View Help shape design of Elexon’s future data and reporting service

Help shape design of Elexon’s future data and reporting service

To deliver on our commitment to providing enhanced, customisable data we are migrating the aging Balancing Mechanism Reporting Service platform (BMRS) to the Elexon Kinnect Insights Solution. Through easier access to data and data insights, the new Insights Solution will play a key role in supporting existing  companies, new entrants and innovators who want to develop new products and services.

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View BSC Insight: ‘Event-driven’ architecture can help to release the value of energy data

BSC Insight: ‘Event-driven’ architecture can help to release the value of energy data

This BSC Insight article, written by Peter Stanley, Director Digital Operations at Elexon, explains why Elexon would be best placed to operate ‘Event-driven’ IT architecture (EDA) to support Market-wide Half Hourly Settlement which is due to be implemented in GB in October 2025. 

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View FAQs on testing of P375 BSC System changes

FAQs on testing of P375 BSC System changes

This page aims to answer common questions about participation in the testing of system changes related to Modification P375, part of the June 2022 Release.

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View Help us examine Trading Disputes and Manifest Errors

Help us examine Trading Disputes and Manifest Errors

We have a number of vacancies available for Industry Members on the Trading Disputes Committee (TDC). Join the TDC and help us examine Trading Disputes, participate in the Modification process and decide on Manifest Error claims.

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View Changes to Outstation requirements introduced on 30 June 2022

Changes to Outstation requirements introduced on 30 June 2022

We are in the process of contacting Outstation manufacturers to confirm whether or not their Outstations currently comply with the new requirements. This is because the Issue numbers and versions of Codes of Practice 1, 2, 3, 5 and 10 are changing and will be implemented on 30 June 2022 via the June 2022 BSC Release.

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View Participate in the design of our Digital BSC website

Participate in the design of our Digital BSC website

Elexon is working on a project to develop a brand new website that will enable customers to have much easier access to the Balancing and Settlement Code (BSC) and its subsidiary documents, ‘the Digital Code’. We are working on ways to make the BSC and its subsidiary documents more accessible and navigable for our customers.

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View Request for information from Suppliers

Request for information from Suppliers

The Unmetered Supplies User Group (UMSUG) are requesting information from Suppliers to declare whether they will take on new Non Half Hourly (NHH) Unmetered Supplies (UMS).

UMSUG are interested in knowing if you are willing or unwilling to take on new Non Half Hourly Unmetered Supplies.

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View Latest Market Domain Data Circulars: February 2022

Latest Market Domain Data Circulars: February 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

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View Complete our survey to help improve the BSC Change process

Complete our survey to help improve the BSC Change process

We are collecting views for the BSC Panel on whether the BSC change process should be reviewed, and what improvements could be made, including speeding up the process.

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View BSC Insights: Why did the average System Price increase in 2021?

BSC Insights: Why did the average System Price increase in 2021?

In this BSC Insight our Senior Product Analyst, Emma Tribe, shows how the high wholesale gas prices have caused System Prices to increase to record levels in 2021.

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View Performance Assurance product feedback request

Performance Assurance product feedback request

We are interested in gathering feedback on our Performance Assurance product from parties within the industry to help analyse and identify areas where we could improve. 

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View Compliance and Protocol Approvals List Updated

Compliance and Protocol Approvals List Updated

The Code of Practice Compliance and Protocol Approvals spreadsheet on the Elexon website has been updated to reflect two changes that relate to Outstations.

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View Ofgem’s energy codes satisfaction survey echoes Elexon’s survey results

Ofgem’s energy codes satisfaction survey echoes Elexon’s survey results

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View New CT Ratios added to CT and VT Valid Set on 31 January 2022

New CT Ratios added to CT and VT Valid Set on 31 January 2022

We have recently received a request to add five new Current Transformer (CT) Ratios to the CT and Voltage Transformer (VT) Valid Set.

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View Credit Assessment Load Factor values for Spring 2022 appeal deadline

Credit Assessment Load Factor values for Spring 2022 appeal deadline

The Credit Assessment Load Factor (CALF) values for the Spring 2022 BSC Season, which runs from 1 March 2022 to 31 May 2022, are available from the Credit/Credit Alerting section under the Financial and Credit menu on the Elexon Portal.

If you are the Lead Party of a non-Credit Qualifying BMU, you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

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View Elexon Board circular to BSC Parties from Board Chair Michael Gibbons

Elexon Board circular to BSC Parties from Board Chair Michael Gibbons

Source: Elexon Corporate website

ELEXON BOARD – CIRCULAR LETTER TO BSC PARTIES NO 10

This is the latest letter from the Elexon Board to BSC Parties and our stakeholders on our key activities as a Board. In this letter I am providing you with updates on market conditions, our Business Plan, MHHS (Market-wide Half-Hourly Settlement), Elexon Kinnect and Project Helix, our latest customer satisfaction survey and changes to the leadership of the company.

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View Elexon Kinnect: our cloud native digital platform explained

Elexon Kinnect: our cloud native digital platform explained

A new interactive publication is available called Elexon Kinnect: Our cloud native digital platform explained. It explains how the three elements of Kinnect – the Customer, Settlement and Insights Solutions – work, and the benefits that each will realise.

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View New Error and Failure Resolution approach for Risk 9 from January 2022

New Error and Failure Resolution approach for Risk 9 from January 2022

From January 2022 a new Error and Failure Resolution approach for Risk 9 will be initiated.

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View Credit Assessment Price to remain at £380/MWh – update published 5 Jan 2022

Credit Assessment Price to remain at £380/MWh – update published 5 Jan 2022

The Credit Committee met on 29 December 2021 to review the Credit Assessment Price (CAP) due to be implemented on 18 January 2022. The Credit Committee decided not to propose a new CAP value. This means that the last notified CAP of £380/MWh due to go live on 7 January 2022 will remain in place.


Update impacting this decision

(Published: 5 January 2022)

Please note the last notified CAP value of £380/MWh will not go live on 7 January following a Credit Committee decision on 5 January 2022 to retain the current CAP of £305/MWh.

  • Maintaining Credit Cover news

There is now a consultation (dated 5 January 2022) on increasing the Credit Assessment Price (CAP) to £340/MWh.

  • Consultation on Credit Assessment Price increase to £340/MWh from 25 January 2022

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View Elexon 2022/23 business plan published

Elexon 2022/23 business plan published

Source: Elexon Corporate Website

We are asking for views from BSC Parties and stakeholders on our 2022/23 business plan which sets out how we will deliver our services and support Net Zero. Email your feedback to [email protected] by the end of 31 January.

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View P114 Dataflow on the Elexon Portal updated to version 11

P114 Dataflow on the Elexon Portal updated to version 11

The version of the SAA-I014 Settlement Report subflow 2 (S0142) published on the Elexon Portal has updated to version 11 since 8 December 2021. Previously version 9 of the S0142 was published on the Elexon Portal.

Changes to version used

The latest version of the S0142 includes new data items introduced in the November 2021 release. This includes more Balancing Services Adjustment Data, providing greater transparency on the actions taken by National Grid ESO to balance the electricity system.

For the full list of data items included in version 11 of the S0142 please refer to the P114 data items

Why has the version changed

When version 11 of the S0142 was introduced by the November 2021 Release on 4 November 2021, National Grid ESO elected to remain on version 9 of the S0142. National Grid ESO has now elected to start receiving version 11 of the S0142 from 8 December 2021.

The version of the S0142, which is one of the P114 files, published on the Elexon Portal depends upon the version of the S0142 that National Grid ESO (NGESO), elects to receive.

Consequently, the S0142 for the II Settlement Run published on the Elexon Portal on 8 December was the first in the new version 11 format.

About this data

P114 files are available for download via File Transfer Protocol (FTP) to all Elexon Portal accounts that have a participant ID associated with their account, or have licensed P114 data from Elexon.

If you would like to start receiving this data please make a request through the BSC Service Desk

 

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View 2021 customer survey shows satisfaction levels remain high

2021 customer survey shows satisfaction levels remain high

Elexon’s 2021 customer survey results show that 91% of respondents believe our service has improved over the last year, or stayed the same. Overall satisfaction with our service remains consistently high, with 69% of respondents giving us a score of 8 to 10 out of 10.

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View Energy Systems Catapult and Elexon’s report on accurately tracking carbon in electricity markets

Energy Systems Catapult and Elexon’s report on accurately tracking carbon in electricity markets

Elexon has worked with Energy Systems Catapult (ESC) on a paper which examines options to improve the tracking of carbon content in electricity markets.

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View TechUK blog by Peter Stanley: cloud technology revolutionises Elexon services

TechUK blog by Peter Stanley: cloud technology revolutionises Elexon services

Source: TechUK

Our settlement systems will be key to unlocking the benefits of MHHS, and it is one of the reasons why we have been developing a new cloud platform – Elexon Kinnect – to replace our ageing settlement architecture.

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View Shared Supplier Volume Allocation (SVA) Metering System obligations

Shared Supplier Volume Allocation (SVA) Metering System obligations

The Trading Disputes Committee (TDC) has recently encountered a number of Trading Disputes where the root cause was determined to be issues with implementing or maintaining a Shared Supplier Volume Allocation (SVA) Metering System. We want to ensure that Parties understand their obligations and the processes they must follow to prevent future impacts to Settlement.

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View Ofgem approve Elexon’s Business Separation Plan for Market-wide Half Hourly Settlement

Ofgem approve Elexon’s Business Separation Plan for Market-wide Half Hourly Settlement

On 19 November 2021, Ofgem approved Elexon’s Business Separation Plan for the Market-wide Half Hourly Settlement (MHHS) Programme.

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View Review of the MHHS 2021/22 costs – £4m to be returned to Suppliers in December

Review of the MHHS 2021/22 costs – £4m to be returned to Suppliers in December

The MHHS Implementation Management Charge was set by the BSC Panel at its June meeting at £0.03847/Supplier Volume Allocation MSID, per month. This charge was initially calculated on the basis of the annual MHHS budget, however we committed at the June 2021 Panel meeting to review the charge later in the financial year once there was a better view of the costs likely to be incurred.

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View Deadline approaching: Submission of GC/DC values for Winter 2021

Deadline approaching: Submission of GC/DC values for Winter 2021

The Winter BSC Season starts on Wednesday 1 December and the deadline is approaching for Parties to submit their Generation Capacity (GC) and a Demand Capacity (DC). There are two different ways you can submit these values. If you use Elexon Kinnect, the final deadline for submitting GC/DC values via the Customer Solution is 17:00 on Friday 12 November. If you are submitting the values by the BSCP15/4.3 form, the deadline for submission is 17:00 on Wednesday 17 November.

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View Modification P399 implemented to support greater competition for balancing services

Modification P399 implemented to support greater competition for balancing services

On 4 November Elexon implemented five changes to the Balancing and Settlement Code (BSC) as part of the November 2021 release. This comprises one Modification, P399 ‘Making the identity of Balancing Service providers visible in the Balancing Services Adjustment Data’, and four Change Proposals. Modifications amend BSC rules and Change Proposals amend BSC subsidiary documents.  

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View Credit Assessment Price decrease to £240/MWh on 18 November

Credit Assessment Price decrease to £240/MWh on 18 November

Following a consultation, the Credit Assessment Price (CAP) value will decrease from £259/MWh to £240/MWh on Thursday 18 November 2021.

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View Change to Confirmation Notices relating to Shortfall

Change to Confirmation Notices relating to Shortfall

The energy industry is currently experiencing unprecedented and challenging market conditions. For that reason Elexon has been scrutinising the receipt and payment of Trading Charges (otherwise known as Imbalance Charges) by BSC Parties.

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View Elexon Chief Executive Mark Bygraves to step down

Elexon Chief Executive Mark Bygraves to step down

Source: Elexon Corporate website
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View P412 National Grid ESO Consultation: responses due by 5pm on 26 November 2021

P412 National Grid ESO Consultation: responses due by 5pm on 26 November 2021

Source: National Grid ESO

NationalGrid invite all interested parties to respond to this consultation setting out their views on the options identified and any other areas that they consider to be relevant.  The conclusions from this consultation will feed into the P412 development process and allow all participants, NGESO and Ofgem to make an informed decision on how to progress an appropriate solution to this issue.

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View Webinar on P375: Settlement of Secondary BM Units held on 7 December 2021

Webinar on P375: Settlement of Secondary BM Units held on 7 December 2021

We ran a webinar on 7 December to help explain Modification P375: Settlement of Secondary BM Units using metering behind the site Boundary Point.

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View Alternative Credit Assessment Price Review Process Consultation document

Alternative Credit Assessment Price Review Process Consultation document

This page provides supporting information for the consultation on the Alternative Credit Assessment Price (CAP) Review process.

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View Credit Assessment Price increase to £259MWh from 4 November

Credit Assessment Price increase to £259MWh from 4 November

Following consultation and a subsequent meeting of The Credit Committee,  the CAP will increase on Thursday 4 November 2021 to £259/MWh, from the last notified value of £184/MWh. Please note the last notified CAP of £184/MWh will still be implemented on 21 October 2021.

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View Our responses to consultations on code reform and the Future System Operator

Our responses to consultations on code reform and the Future System Operator

Elexon has published its responses to the consultations by the Government and Ofgem on reforming the energy code arrangements and the Future System Operator (FSO) role. We believe that the proposed framework is a sound footing on which to build an energy system to deliver net zero and note that consolidation and simplification should follow. We look forward to working with the Government and Ofgem to deliver the outcomes of the consultations.

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View Credit Assessment Price increase to £184/MWh on 21 October

Credit Assessment Price increase to £184/MWh on 21 October

Following consultation, the Credit Assessment Price (CAP) will increase on Thursday 21 October 2021 from £137/MWh to £184/MWh. Please note the last notified CAP of £137/MWh will still be implemented on 5 October 2021. 

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View CCDG recommendations following MHHS transition consultation

CCDG recommendations following MHHS transition consultation

Elexon has today published and delivered to Ofgem the recommendations made by the Code Change and Development Group (CCDG), following the CCDG’s consultation on the transition and migration approach to support Market-wide Half Hourly Settlement (MHHS) implementation.

The CCDG is one of two industry workgroups for which Elexon has been providing technical leadership, to support further development of the MHHS Target Operating Model.

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View BSC Insight: What is Credit Cover and how does the Credit Assessment Price affect it?

BSC Insight: What is Credit Cover and how does the Credit Assessment Price affect it?

The Credit Assessment Price has changed nine times in 2021 and we recently consulted on increasing the Credit Assessment Price again to a record high of £184/MWh. The Credit Assessment Price is used as a proxy for future Energy Imbalance Prices in the calculation of Credit Cover requirements. Emma Tribe, our Senior Product Analyst from the Analysis and Insights team, explains how the Credit Assessment Price is related to a Parties Credit Cover requirements.

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View BSC Insight: What is driving the latest increases in Credit Assessment Price?

BSC Insight: What is driving the latest increases in Credit Assessment Price?

In this BSC Insight article, Mehdi Jafari outlines the recent trends in forward market prices and how we measure the Credit Assessment Price (CAP) process effectiveness against the System Buy Price. The article also provides an update on our Insight Article in May 2021, where the sixth CAP change of 2021 was in process.

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View BSC Panel response to the consultation by the Government and Ofgem on energy code reforms

BSC Panel response to the consultation by the Government and Ofgem on energy code reforms

The BSC Panel has published a formal response to the Ofgem and the Department for Business, Energy & Industrial Strategy (BEIS) joint consultation which seeks views on a range of proposed reforms of energy codes.

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View System Prices spike on 7 and 9 September 2021

System Prices spike on 7 and 9 September 2021

On Tuesday 7 September, System Prices peaked at £3,403.70/MWh and remained above £2,900/MWh for an hour and a half. Wholesale gas and electricity balancing volumes prices have been increasing this summer due to colder summer weather, low wind generation and reported shortages of gas.

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View Market Index Definition Statement Review 2021

Market Index Definition Statement Review 2021

The Market Index Definition Statement (MIDS) is annually reviewed by the BSCCo. on behalf of the BSC Panel, to ensure that the Market Index Price is providing a reasonable reflection of the price of wholesale electricity in the short term market.

 

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View Nominations needed for members of MHHS Programme decision groups

Nominations needed for members of MHHS Programme decision groups

Source: MHHS programme
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View Latest Market Domain Data Circulars: September 2022

Latest Market Domain Data Circulars: September 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

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View Updated TAA COVID-19 working practices for site audits

Updated TAA COVID-19 working practices for site audits

As of 19th July 2021, the government no longer instructs people to work from home. Therefore, with authorisation from our customers we plan to restart on site audits. The Technical Assurance Agent (TAA), currently C&C Group Holdings Ltd, have updated our procedure and practices and these must be followed by all staff when working off site in order to minimise risk to themselves and others.

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View CALF values winter season: November 2021 appeal deadline

CALF values winter season: November 2021 appeal deadline

If you are the Lead Party of a non-Credit Qualifying Balancing Mechanism Unit (BMU), you can appeal an assigned CALF value if you believe it does not accurately represent your expected activity.

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View Video about Kinnect Settlement Solution

Video about Kinnect Settlement Solution

Here you can watch a video about the Kinnect Settlement Solution that will handle our core balancing and settlement operations. Elexon Kinnect Settlement Solution forms the “engine” of our digital platform and will run our day-to-day settlement and invoicing operations. The video is introduced by Mark Bygraves, the Elexon CEO, and details of the Settlement Solution are presented by Peter Stanley the Director of Digital Operations.

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View Credit Assessment Price to increase on 8 September 2021

Credit Assessment Price to increase on 8 September 2021

Following consultation, the Credit Assessment Price (CAP) will increase from £96/MWh to  £113/MWh, effective from Wednesday 8 September 2021.

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View BSC Insight: How to find your own insights from Supplier Market Share data

BSC Insight: How to find your own insights from Supplier Market Share data

In this BSC Insight, Emma Tribe our Senior Product Analyst and Nick Groves our Data Steward Lead, demonstrate some of the insights that are possible using data from the Quarterly Supplier Market Share report from Elexon.

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View Latest Market Domain Data Circulars: August 2022

Latest Market Domain Data Circulars: August 2022

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

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View BSC Insight: Update on Settlement Performance during the COVID-19 pandemic

BSC Insight: Update on Settlement Performance during the COVID-19 pandemic

In this Insight article, Mehdi Jafari  provides an update on the Settlement Performance during the COVID-19 pandemic. This BSC Insight follows on from a previous BSC Insight we published to show how COVID-19 pandemic had affected suppliers’ performance in 2020.

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View MHHS Programme Governance Framework issued 30 July 2021

MHHS Programme Governance Framework issued 30 July 2021

Today Elexon, on behalf of the MHHS Programme (Implementation Manager), is publishing a consultation on the details of the proposed MHHS Programme governance framework on the BSC website (in lieu of the MHHS Programme’s website going live).

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View Board approves budget for MHHS implementation programme

Board approves budget for MHHS implementation programme

Elexon is managing the implementation of the industry-led MHHS Programme and as such is the Senior Responsible Owner and Programme Manager. Elexon’s Board has approved a budget of £14.5m for the first year (2021/22) of the implementation programme for Market-wide Half Hourly Settlement (MHHS).

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View CAP increase announced for 3 August 2021

CAP increase announced for 3 August 2021

On Tuesday 3 August 2021, the CAP value will increase from £77/MWh to £96/MWh.

The CAP review trigger level value will also increase to +/- £10/MWh.

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View BSC 2021 Annual Seminar – recording and slides now available

BSC 2021 Annual Seminar – recording and slides now available

Source: Elexon Corporate website

Our annual Balancing and Settlement Code (BSC) meeting and seminar took place on Thursday 8 July where our executive team presented on our performance, strategic objectives and how our work supports progress to net zero.

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View CCDG transition plan consultation and webinar

CCDG transition plan consultation and webinar

On 5 July 2021 we published a consultation on the transition and migration approach that the Code Change and Development Group (CCDG) has developed to support implementation of Market-wide Half Hourly Settlement (MHHS). We hosted a webinar about the consultation on 7 July.

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View 300 customers now use Kinnect Customer Solution [Board Circular 9]

300 customers now use Kinnect Customer Solution [Board Circular 9]

Source: Elexon Corporate website

In the latest Elexon Board circular letter to BSC Parties, Board Chairman Michael Gibbons has highlighted the success so far in the roll out of the Customer Solution, the first major component that Elexon has delivered for its new digital platform – Elexon Kinnect.

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View Ending COVID-19 derogations: three month notice period from 1 July

Ending COVID-19 derogations: three month notice period from 1 July

The three-month notice period required to end the COVID-19 Supplier derogations begins on 1 July. The Performance Assurance Board (PAB) made this decision at its meeting on 24 June 2021, taking into account feedback from industry and the loosening of COVID-19 restrictions.

The PAB believe that there is now a reasonable level of confidence that Government restrictions which significantly impact Settlement operations have concluded. In particular, whilst some restrictions do remain in place, very few business premises are now required to remain closed.

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View Desktop audits, CVA and SVA inspections become mandatory

Desktop audits, CVA and SVA inspections become mandatory

The Performance Assurance Board (PAB) has recently announced changes to the mandatory status of Desktop Audits, Central Volume Allocation and Supplier Volume Allocation onsite Inspection Visits.

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View Issue relating to EPEX SPOT & ECC on 27/28 June (Now resolved)

Issue relating to EPEX SPOT & ECC on 27/28 June (Now resolved)

Please note that this issue has now been resolved

  • More information is available in Elexon Circular EL03332
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View BSC Insight: Why Non Half Hourly electricity use increased in the first four months of 2021

BSC Insight: Why Non Half Hourly electricity use increased in the first four months of 2021

In this insight article Emma Tribe, our Analysis and Insight Senior Product Analyst, explains how the colder temperatures between January and April 2021 increased Non Half-Hourly electricity demand.

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View Open Data Requests for BSC Data now available

Open Data Requests for BSC Data now available

From 24 June 2021 individuals can request that BSC data is made openly available, regardless of whether or not they are a BSC Party.

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View Introduction of MHHS Implementation Monthly Charge

Introduction of MHHS Implementation Monthly Charge

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View Hear from the Energy Minister at Elexon’s 2021 annual seminar

Hear from the Energy Minister at Elexon’s 2021 annual seminar

Our annual BSC seminar takes place from 14:00 to 16:00 on 8 July 2021, where you will hear from the Energy Minister and other senior industry figures. Elexon’s senior leadership team will be providing an overview of our performance over 2020/21 and explaining how we have supported progress to net zero. You will also be able to vote to appoint the Board Directors.

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View Architecture Working Group recommendation on reference architecture to support MHHS

Architecture Working Group recommendation on reference architecture to support MHHS

On 14 June 2021 we published the Architecture Working Group’s (AWG) recommendation to Ofgem that ‘event-driven’ reference architecture is developed to support Market-wide Half Hourly Settlement (MHHS) implementation. 

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View Webinar on Market-wide Half Hourly Settlement Programme Budget

Webinar on Market-wide Half Hourly Settlement Programme Budget

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View Clarification of criteria for Non-Domestic SVA Metering Systems to be allocated to Profile Classes 3 or 4

Clarification of criteria for Non-Domestic SVA Metering Systems to be allocated to Profile Classes 3 or 4

In response to recent enquiries from Suppliers and other parties, we have been reviewing whether the criteria that Suppliers must follow when deciding whether to allocate Non-Domestic SVA Metering Systems to Profile Classes 3 or 4 are clear. These criteria are laid out in BSCP516: ‘Allocation of Profile Classes and SSC’s for Non Half Hourly SVA Metering Systems Registered in SMRS’, and are particularly relevant to:

  • Suppliers deciding whether a new connection should be settled as Non Half Hourly (NHH) in Profile Class 3 or 4, or as Half Hourly (HH); and
  • Suppliers deciding whether an existing connection that is currently being settled HH can be changed to NHH in Profile Classes 3 or 4.
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View Responses to consultation on reference architecture to support MHHS

Responses to consultation on reference architecture to support MHHS

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View Participate in design of Elexon’s future data and reporting service

Participate in design of Elexon’s future data and reporting service

We are recruiting interested parties to join our Data and Reporting User Group. The User Group is being formed to allow our customers and stakeholders the opportunity to help shape the design of the Elexon Kinnect Insights Solution, which is one of the three elements that make up our new digital platform, Elexon Kinnect. 

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View Quarterly Performance Assurance Report for Q4 2020-2021

Quarterly Performance Assurance Report for Q4 2020-2021

We have published the latest Quarterly Performance Assurance Report for Q4 2020-2021. This report outlines the Key Points of Progress, the Risk Landscape, Key Industry Metrics, Focussed Risk and Event Overview as well as Technique Updates.

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View BSC Insight: Update on Demand Reduction during COVID-19 lockdown

BSC Insight: Update on Demand Reduction during COVID-19 lockdown

In this BSC Insight, Hussein Osman uses the latest data from BMRS and our internal databases to compare the changes in demand following Government advice that people stay at home with the demand patterns from similar periods in previous years.

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View BSC insight: Forward Market Prices drive six CAP value reviews this year

BSC insight: Forward Market Prices drive six CAP value reviews this year

We issued a consultation on changing the Credit Assessment Price (CAP) value on 17 May 2021. This is the sixth time in 2021 that the CAP value is going to change. This is the most CAP change events to occur in the first five months of the year since the CAP weekly monitoring process was introduced in 2007.

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View Ofgem approves Emergent Energy’s proposal to use the BSC Sandbox

Ofgem approves Emergent Energy’s proposal to use the BSC Sandbox

Energy regulator Ofgem has approved the first proposal to use Elexon’s Balancing and Settlement Code (BSC) Sandbox. The BSC Sandbox allows innovators to trial concepts in a live market environment without having to meet all the usual BSC rules.

Ofgem’s decision follows Elexon’s consultation on a proposal by Emergent Energy to use the service. The BSC Panel then recommended the proposal for approval by Ofgem.

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View CAP increase announced for 16 June 2021

CAP increase announced for 16 June 2021

On Wednesday 16 June 2021, the CAP value will increase to £77/MWh. This follows a consultation which closed Tuesday 25 May 2021 with no responses disagreeing to the proposal.

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View Modification P399 approved by Ofgem

Modification P399 approved by Ofgem

On 18 May, Ofgem approved Modification P399. This modification will level the playing field between publicly available data on BM and non-BM trades, so that market participants can identify the organisations and assets which are providing these additional non-BM balancing services. P399 will be implemented on 4 November 2021 as part of the November 2021 BSC release.

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View BSC insight: How Covid-19 impacts Load Profiles

BSC insight: How Covid-19 impacts Load Profiles

There are two different types of data that the Balancing and Settlement Code (BSC) requires for electricity Settlement; Half Hourly and Non Half Hourly. Electricity Settlement happens in Half Hourly periods, so Elexon uses the profiling process to calculate Half Hourly data from Non Half Hourly meters. In this Insight article, Mehdi Jafari discusses the Group Average Demand data used in the profiling process and the way it has been impacted by the COVID-19 pandemic.

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View CAP increase consultation announced 17 May 2021

CAP increase consultation announced 17 May 2021

Following an increase in forward market prices, a Credit Assessment Price (CAP) review was triggered. There is now a consultation paper on the value of the CAP which asks whether you agree with the proposal to increase the value of CAP.

The proposal is to increase the value of CAP to £77/MWh from last notified value of £70/MWh

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View BSC Insight: the impact of Trading Charges in 2020/21

BSC Insight: the impact of Trading Charges in 2020/21

In the 2020/21 financial year, the absolute cashflow for BSC Trading Charges was £2.96bn. This was the most cashflow settled in a financial year. In this BSC Insight our Analysis and Insight Senior Product Analyst, Emma Tribe, explains how BSC Trading Charges are settled by Elexon.

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View CAP increase announced for 3 June 2021

CAP increase announced for 3 June 2021

On Thursday 3 June 2021, the CAP value will increase from £60/MWh to £70/MWh. This follows a consultation paper issued on Tuesday 4 May 2021 following a breach of the CAP trigger level.

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View CAP increase consultation announced 04 May 2021

CAP increase consultation announced 04 May 2021

Following an increase in forward market prices, a Credit Assessment Price (CAP) review was triggered. There is now a consultation paper on the value of the CAP which asks whether you agree with the proposal to increase the value of CAP.

The proposal is to increase the value of CAP to £68/MWh from last notified value of £60/MWh.

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View BSC Insight: Unprecedented Price Spikes in 2021

BSC Insight: Unprecedented Price Spikes in 2021

In 2021, we have seen the highest System Prices since 2001, which was the first year of the New Electricity Trading Arrangement. The highest price this year was £4,000/MWh on 8 January in Settlement Periods 39 and 40. On 12 April 2021, the System Price was over £1,000/MWh for five consecutive Settlement Periods. In this BSC Insight, one of our Product Analysts, Angus Fairbairn, looks into how and why these high prices occur.

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View Consultation on reference architecture to support MHHS

Consultation on reference architecture to support MHHS

Today (26 April) we have published the Architecture Working Group (AWG) consultation on the reference architecture to support Market-wide Half Hourly Settlement (MHHS) implementation.

The additional meter readings available from smart meters will result in a big increase in the volume and frequency of meter data that needs to be settled. This requires a different approach to the way energy companies interact with each other and Settlement data. The reference architecture sets out the framework for this new data integration.

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View Elexon appointed Senior Responsible Owner for MHHS

Elexon appointed Senior Responsible Owner for MHHS

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View CAP increase announced for 12 May 2021

CAP increase announced for 12 May 2021

A Consultation paper on the value of Credit Assessment Price (CAP) was issued on Monday 12 April 2021 following a breach of the CAP trigger level. No responses disagreed with the proposed value and its was agreed that CAP value will increase to £60/MWh.

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View Code Change and Development Group consultation responses published

Code Change and Development Group consultation responses published

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View CAP increase consultation announced 12 April 2021

CAP increase consultation announced 12 April 2021

Following an increase in forward market prices, a Credit Assessment Price (CAP) review was triggered. There is now a consultation paper on the value of the CAP which asks whether you agree with the proposal to increase the value of CAP.

The proposal is to increase the CAP to £60/MWh from the last notified CAP value of £54/MWh.

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View BSC Insight: Reliant on the weather? A review of weather dependent generation in GB

BSC Insight: Reliant on the weather? A review of weather dependent generation in GB

The British have always felt a strong connection to the weather. A typical conversation in any part of the country will generally include a reference to either how: hot, cold, rainy, windy, sunny or grey the weather is! In the last 10 years, the weather has also begun to fuel our day-to-day lives as more weather dependent generation has been used in the fuel mix. This is making Britain greener and helping the nation reach its goal of NetZero by 2050. In this Insight Emma Tribe, our Analysis and Insight Delivery Lead, shows how Great Britain’s fuel mix is connected to the weather more than ever through an increase in weather dependent generation.

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View Compliance and Protocol approval for the EMA1 Meter type

Compliance and Protocol approval for the EMA1 Meter type

On 19 March 2021, the EMA1 (integral Outstation) Meter passed compliance and protocol testing against our Code of Practice. We have updated the Code of Practice (CoP) Compliance and Protocol Approvals spreadsheet on the Elexon website to reflect this.

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View Twentieth anniversary of the Balancing and Settlement Code

Twentieth anniversary of the Balancing and Settlement Code

This Saturday marked the 20th anniversary of the Balancing and Settlement Code (BSC), which was launched as part of NETA (the New Electricity Trading arrangements) on 27 March 2001.

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View Changes to BSC Parties and Qualified Persons: March 2021

Changes to BSC Parties and Qualified Persons: March 2021

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in March. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View TLF values: Spring 2021 Part A Season available

TLF values: Spring 2021 Part A Season available

The Transmission Loss Factors (TLF) for each BM Unit that is registered to be active during the 1 April 2021 to 31 May 2021 has been published.

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View Final Elexon business plan for 2021/22 published

Final Elexon business plan for 2021/22 published

Elexon has published the final version of its business plan for 2021/22, following feedback from the BSC Panel and BSC Parties. We thank everyone that provided feedback on the plan. Elexon’s board discussed this in detail at its February 2021 meeting. The feedback was also presented to the BSC Panel at its February meeting.

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View BSC Insight: Increasing costs for balancing the GB System

BSC Insight: Increasing costs for balancing the GB System

The Electricity System Operator (ESO) plays an essential role in balancing supply and demand using the Balancing Mechanism (BM). Matching supply and demand requires payments to be made between the ESO and participating consumers and generators. Consumers and generators submit prices for volumes of energy they can provide within a half-hour period (Settlement Period) to balance the system. In this Insight article, analyst Angus Fairbairn looks at balancing costs of ESO since 2015. 

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View Modification P379 is withdrawn but learnings can support future change

Modification P379 is withdrawn but learnings can support future change

Modification P379 ‘Multiple Suppliers through Meter Splitting’ has been withdrawn by the proposer after independent analysis of the proposal showed that the costs for implementing it would significantly outweigh the benefits.

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View Have your say about the draft D0095 calendar for 2021/22

Have your say about the draft D0095 calendar for 2021/22

Have your say regarding issues you may have with the draft D0095 calendar for the settlement year 2021/22.

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View 2021 is a key year for our new digital platform

2021 is a key year for our new digital platform

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View CAP decreases to £54/MWh from 23 March 2021

CAP decreases to £54/MWh from 23 March 2021

The CAP (Credit Assessment Price) will decrease to £54/MWh from the last notified value of £64/MWh on Tuesday 23 March 2021.

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View GSP Group _A metering issue resolved

GSP Group _A metering issue resolved

A metering issue that caused the submission of incorrect metering data in GSP Group A has been fixed, we can confirm. 

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View Monitoring the Settlement performance standards

Monitoring the Settlement performance standards

The Performance Assurance Board committee agree the approach to monitoring the Supplier Half Hourly (HH) and Non-Half Hourly (NHH) Settlement performance standards and applying Error and Failure Resolution (EFR) on a quarterly basis.

Here are details agreed by PAB regarding the current approach related to this period of time.

Please note that if you would like to follow further updates to this subject further information is available on the Monitoring the Settlement performance standards web page.

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View Update to the submission of MDD Plan for Ofgem’s TCR

Update to the submission of MDD Plan for Ofgem’s TCR

Find out the latest updates for 1 March 2021 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View Risk Evaluation Register 2021/22 consultation – get involved

Risk Evaluation Register 2021/22 consultation – get involved

The consultation sets out the Settlement Risks identified for 2021/22, but we’d like BSC parties to let us know what they think of these risks and if they should be amended.

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View Appeal your Summer CALF value by 1 May 2021

Appeal your Summer CALF value by 1 May 2021

Lead Parties of a non-Credit Qualifying BMU can appeal against an assigned CALF (Credit Assessment Load Factor) value if it is believed it does not accurately represent your expected activity.

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View Ground-breaking Modification to support net zero is approved

Ground-breaking Modification to support net zero is approved

Energy regulator Ofgem has approved BSC Modification P375 a ground-breaking change to the Balancing and Settlement Code (BSC) which will allow individual Asset Meters located ‘behind the boundary point’ to be used for Settlement purposes.

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View Changes to BSC Parties and Qualified Persons: February 2021

Changes to BSC Parties and Qualified Persons: February 2021

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in February. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Video: BSC Change on their updated ways of working

Video: BSC Change on their updated ways of working

The BSC Change team have published a new video outlining the changes to their ways of working they have made in the last year. This is based on feedback they received from BSC Parties.

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View Elexon proposes reforms to System Operator roles and code arrangements

Elexon proposes reforms to System Operator roles and code arrangements

Elexon has set out options for a single energy code body to work alongside a reformed System Operator (SO) in their new policy, ‘Reforming the System Operator Roles and Code Arrangements’. This approach will allow better management of the energy system on the road to net zero.

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View Have your say – proposal to use the BSC Sandbox

Have your say – proposal to use the BSC Sandbox

You have the chance to take part in Elexon’s consultation on the first proposal to use the new Balancing and Settlement Code (BSC) Sandbox. 

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View BSC Insights: a review of 2020

BSC Insights: a review of 2020

COVID-19 dominated the news in 2020; however, it was not all that happened. In this article, the Analysis and Insight team review 2020 and focus on the consistencies and inconsistencies witnessed. They use BMRS data to review the Fuel Mix, the make-up of BSC Parties, the Energy Imbalance Volume, and the overall electricity demand. While all of these were impacted by COVID-19, the data also demonstrates some consistencies with previous years despite COVID-19’s impact.

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View Take part in Elexon Kinnect Customer Solution user group

Take part in Elexon Kinnect Customer Solution user group

We are looking to form a user group for the Customer Solution in order to obtain input and feedback regarding  improvements that we could make to the platform. All Elexon Kinnect users are encouraged to sign up.

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View Approval of Modification P398 increases access to BSC data

Approval of Modification P398 increases access to BSC data

Ofgem has approved Modification P398 ‘Increasing access to BSC Data’ for implementation on 24 June 2021. P398 will amend the BSC so that all data is assumed open unless there is a reason otherwise and will not directly impact any market participants. BSC Parties and non-BSC Parties will be able to apply for data under a new process introduced by this Modification. This Modification will better align the BSC with moves towards a smarter energy system.

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View 2021 submission deadlines for Spring GC/DC values

2021 submission deadlines for Spring GC/DC values

The deadline for submitting your Generation and Demand Capacity (GC/DC) values for the Spring BSC Season is Friday 12 February 2021, if submitting via Elexon Kinnect. Alternatively, the deadline is Monday 15 February 2021, if submitting to the Central Registration Agent (CRA).

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View We’re reviewing the Trading Disputes Technique

We’re reviewing the Trading Disputes Technique

We are looking to carry out a comprehensive assessment of the current Trading Disputes processes. The review will recommend any changes and improvements that can be made to the Trading Disputes technique, both in regards to short-term and long-term changes.

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View CAP increases to £64/MWh from 23 February 2021

CAP increases to £64/MWh from 23 February 2021

The Credit Assessment Price (CAP) will increase to £64/MWh, effective from Tuesday 23 February 2021. 

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View Changes to BSC Parties and Qualified Persons: January 2021

Changes to BSC Parties and Qualified Persons: January 2021

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in January. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View First week of operation for new UK-France interconnector

First week of operation for new UK-France interconnector

The new 149-mile interconnector, Interconnexion France-Angleterre 2 (IFA2), that runs between the UK and France has been operational for one week. Linking the Hampshire and Normandy coastlines, the interconnector has been importing and exporting clean electricity between GB and Europe since 20:30 on 22 January 2021.

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View Elexon Kinnect Customer Solution goes live

Elexon Kinnect Customer Solution goes live

The new self-service gateway element of our new digital platform – the Elexon Kinnect Customer Solution – is now live.

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View BSC Insight: Impact of COVID-19 on smart meter installations

BSC Insight: Impact of COVID-19 on smart meter installations

The restrictions introduced in 2020 to curb the spread of COVID-19 have provided unprecedented challenges for Suppliers as they continue to install smart meters. In this Insight article, our Analysis and Insight Analyst Hussein Osman, reviews the installation rates of Smart Metering Equipment Technical Specifications SMETS2 meters before, during, and after the March to June and November to December 2020 lockdowns.

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View Ofgem proposes that Elexon is owner for MHHS implementation

Ofgem proposes that Elexon is owner for MHHS implementation

Ofgem has today, 22 January 2021, published its consultation on implementation principles for Market-wide Half Hourly Settlement (MHHS) in which it explains its ‘plan to clearly place responsibility for management and delivery of the programme with industry.’ 

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View Have your say: CCDG consultation on MHH Settlement

Have your say: CCDG consultation on MHH Settlement

A new consultation on the detailed design of, and Industry Code changes from, the Market-wide Half Hourly Settlement (MHH Settlement) Target Operating Model (TOM) has now been published and we would like your feedback.

The deadline for consultation responses has now been extended until 08:00 on Friday 29 January 2021.

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View BSC Insight: Why the Reserve Scarcity Price is being reviewed

BSC Insight: Why the Reserve Scarcity Price is being reviewed

National Grid ESO raised BSC Issue Group 92 to review the Reserve Scarcity Price with representatives from across the electricity industry. The need for this arose due to feedback from industry representatives that the Reserve Scarcity Price has had less of an impact on System Prices than expected and a need to ensure the calculation is fit for a future energy market.

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View Update to the submission of MDD Plan for Ofgem’s TCR

Update to the submission of MDD Plan for Ofgem’s TCR

Find out the latest updates for 18 January 2021 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View New ETLMO values for BSC Year 2021/22 published

New ETLMO values for BSC Year 2021/22 published

The revised Estimated Transmission Losses Adjustment (ETLMO) values for use from 1 April 2021 have been approved. The approval was made by the Imbalance Settlement Group at its January meeting.

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View Have your say regarding ‘Meter Splitting’ Proposal

Have your say regarding ‘Meter Splitting’ Proposal

A Cost Benefit Analysis (CBA) consultation for P379 ‘Multiple Suppliers through Meter Splitting’ has been issued by the BSC Panel. We are asking you to get involved by completing our consultation for P379.

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View System Prices spike due to ‘Beast from the East 2’

System Prices spike due to ‘Beast from the East 2’

System Prices reached or exceeded £1,000/MWh on seven occasions from 6 to 8 January due to cold weather brought on from the ‘Beast from the East 2’.

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View BSC Insights: Great Britain’s first coal-free Christmas occurs in 2020

BSC Insights: Great Britain’s first coal-free Christmas occurs in 2020

Mehdi Jafari investigates the electricity generation and demand over the Christmas period 2020.

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View CAP increases to £62/MWh from 27 January 2021

CAP increases to £62/MWh from 27 January 2021

The CAP will increase to £62/MWh – not the proposed £60/MWh – on Wednesday 27 January 2021.

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View BMRS approved as the Reporting Service for Great Britain

BMRS approved as the Reporting Service for Great Britain

Ofgem has designated the Balancing Mechanism Reporting Service (BMRS) as the Reporting Service for Great Britain in an open letter on the 4 January 2021.

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View Changes to BSC Parties and Qualified Persons: December 2020

Changes to BSC Parties and Qualified Persons: December 2020

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in December. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View Ofgem’s response to BSC Panel’s letter on changes to MDD

Ofgem’s response to BSC Panel’s letter on changes to MDD

Read the correspondence between the BSC Panel and Ofgem regarding large scale changes to Market Domain Data (MDD).

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View Metering error in GSP Group_A being investigated

Metering error in GSP Group_A being investigated

Elexon has identified an issue at a Grid Supply Point (GSP) within GSP Group_A (Eastern region), which is causing the Annual Demand Ratio (ADR) for the GSP Group to deviate beyond accepted tolerances within Settlement.

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View 2020: Reflecting on the year no one expected

2020: Reflecting on the year no one expected

In this end of year review, Rebecca Fowler from the Communications and Engagement team looks at an eventful 2020 in which the electricity industry faced unprecedented challenges due to the COVID-19 pandemic. 

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View Update to the submission of MDD Plan for Ofgem’s TCR

Update to the submission of MDD Plan for Ofgem’s TCR

Find out the latest updates for 14 December 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View Customer survey shows appreciation of our support during COVID-19

Customer survey shows appreciation of our support during COVID-19

The results of Elexon’s 2020 annual customer survey sees improvements in a number of our core services and highlights that the support we have provided our customers during COVID-19 was appreciated.

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View Risk Report: Insight and guidance on settlement – November 2020

Risk Report: Insight and guidance on settlement – November 2020

Settlement performance activity around Non Half Hourly (NHH), Half Hourly (HH) and Sub 100kW markets has been published.

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View Update to the submission of MDD Plan for Ofgem’s TCR

Update to the submission of MDD Plan for Ofgem’s TCR

Find out the latest updates for 7 December 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View Prevailing Network Mapping Statement for BSC Year 2020/2021 published

Prevailing Network Mapping Statement for BSC Year 2020/2021 published

The latest version of the Prevailing Network Mapping Statement is now available for BSC Year 2021/22 via the Elexon Portal.

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View Latest update to the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR)

Latest update to the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR)

Find out the latest updates for 30 November 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View TLF values for the Winter 2020 Season now available

TLF values for the Winter 2020 Season now available

The Transmission Loss Factors (TLF) for each BM Unit that is registered to be active during the 1 December 2020 to 28 February 2021 has been published.

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View Changes to BSC Parties and Qualified Persons: November 2020

Changes to BSC Parties and Qualified Persons: November 2020

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in November. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View BSC Insights: The ways P350 has changed allocation of Transmission Losses

BSC Insights: The ways P350 has changed allocation of Transmission Losses

In this Insight article, Mehdi Jafari considers the way implementation of Modification P350 changed the allocation of Transmission Losses.

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View Latest update to the submission of Market Domain Data and Line Loss Factor Classes Plan for Ofgem’s Targeted Charging Review

Latest update to the submission of Market Domain Data and Line Loss Factor Classes Plan for Ofgem’s Targeted Charging Review

Find out the latest updates for 16 November 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View Interconnectors exempted from Funding Share BSC Charges

Interconnectors exempted from Funding Share BSC Charges

Given the approval of BSC Modification P396 by Ofgem in March 2020, from 1 December all BSC Trading Parties that are not Interconnectors will have to pay the BSC Funding Share costs that were previously attributed to Interconnectors.

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View BSC Parties receive £1.5m in savings from Elexon

BSC Parties receive £1.5m in savings from Elexon

BSC Trading Parties will be given £1.5m through a reduction in Elexon’s billing over the coming months. This has been driven by a number of cost efficiencies and savings made by the company.

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View BSC Insights: How Covid-19 has affected estimated data in Settlement

BSC Insights: How Covid-19 has affected estimated data in Settlement

We monitor Supplier Performance in relation to the volume of estimated and actual data in Settlement. In this insight article, our Analysis and Insight Delivery Lead, Emma Tribe looks at the impact COVID-19 had on Supplier Performance during the first lockdown.

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View Holiday CALF values (Winter 2020 BSC Season) deadline: 17 November 2020

Holiday CALF values (Winter 2020 BSC Season) deadline: 17 November 2020

Suppliers who experience reduced demand during Christmas and New Year Easter can request a reduced Credit Assessment Load Factor (CALF) value for the period. 

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View Major Line Loss Factor Classes upload to Market Domain Data on 18 Nov.

Major Line Loss Factor Classes upload to Market Domain Data on 18 Nov.

Find out the latest updates for 9 November 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View COVID-19: Estimation derogations to continue into 2021

COVID-19: Estimation derogations to continue into 2021

Suppliers can continue to provide updated estimates of consumption that reflect changes in usage during periods of lockdown in Settlement for the foreseeable future. 

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View Settlement performance during COVID-19 report – October 2020

Settlement performance during COVID-19 report – October 2020

October’s Risk Report regarding insight into Settlement performance and monitoring during COVID-19 has been published.

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View COVID-19: Possible estimation derogation changes after lockdown announced

COVID-19: Possible estimation derogation changes after lockdown announced

See updates regarding estimation derogations during COVID-19.

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View Changes to BSC Parties and Qualified Persons: October 2020

Changes to BSC Parties and Qualified Persons: October 2020

This page lists changes to the status of Balancing and Settlement (BSC) Parties and Qualified Persons in October. It includes information on any new qualifications and registrations, new market participants, withdrawals and defaults.

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View UMS MPANs with 100kW demand to be migrated

UMS MPANs with 100kW demand to be migrated

Unmetered Supplies (UMS) Metering Point Administration Numbers (MPANs) with a maximum demand over 100kW must be migrated to Half-Hourly (HH) settlement; the proposed deadline for this migration is 1 April 2021.

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View Settlement Adjustment after Demand Control Events

Settlement Adjustment after Demand Control Events

A BSC rule change was implemented on 12 October 2020, requiring Elexon to determine whether Settlement Adjustment Processes (SAPs) should be used if a Demand Control Event (DCE) occurs in future.

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View Submission of MDD and LLFC Plan for Ofgem’s Targeted Charging Review

Submission of MDD and LLFC Plan for Ofgem’s Targeted Charging Review

Find out the latest updates for 20 October 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View Virtual Lead Parties could trade in the wholesale market

Virtual Lead Parties could trade in the wholesale market

Elexon is calling for volunteers to join a new Workgroup to assess a Balancing and Settlement Code Modification proposal allowing Virtual Lead Parties to trade electricity from demand-side response (DSR) providers directly in the wholesale electricity market.

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View Webinar: MHHS Target Operating Model explained

Webinar: MHHS Target Operating Model explained

We have published a webinar explaining the Market-wide Half Hourly Settlement (MHHS) Target Operating Model (TOM). The webinar also provides background information to help responses to two major consultations relating to MHHS in the coming months.

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View Volunteers wanted for new proposed DTN flows workgroup

Volunteers wanted for new proposed DTN flows workgroup

We are looking for volunteers, primarily Unmetered Supplies Operators (UMSOs) or Meter Administrators (MAs), to take part in a workgroup to discuss two new proposed Data Transfer Network (DTN) flows between UMSOs and MAs for exchanging Unmetered Supplies inventory and control file data.

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View Changes to BSC Parties and Qualified Persons: September 2020

Changes to BSC Parties and Qualified Persons: September 2020

This page lists changes to the status of BSC Parties and Qualified Persons in September. It includes information on any new market participants, registrations, withdrawals and defaults.

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View COVID-19: Estimation derogations ending on 31 December 2020

COVID-19: Estimation derogations ending on 31 December 2020

See updates regarding estimation derogations during COVID-19.

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View Large scale change to Market Domain Data

Large scale change to Market Domain Data

Find out the latest updates for 28 September 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

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View Annual BSC Meeting – highlights

Annual BSC Meeting – highlights

On Thursday 10 September 2020, Elexon hosted the first ever virtual annual BSC Meeting and Seminar.

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View More electricity market data is now available

More electricity market data is now available

As part of the commitment to improving access to electricity market data, we have now made more electricity Settlement data available.

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View Delivering CP ‘Interconnector Fuel Type update to BMRS’ earlier

Delivering CP ‘Interconnector Fuel Type update to BMRS’ earlier

There is an opportunity to deliver CP1535 ‘Interconnector Fuel Type Category update to BMRS’ earlier. This chance has come about following the further Trans European Replacement Reserve Exchange (TERRE) delay announcement.  

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View Board Directors – re-appointment and re-election

Board Directors – re-appointment and re-election

BSC Parties voted whether to approve the appointment or re-appointment of Board Directors in their last year, and whether to re-elect all other Board directors at the virtual Annual BSC Meeting on 10 September.

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View GB participation in TERRE delayed until 2021

GB participation in TERRE delayed until 2021

National Grid ESO (NGESO) have announced that it is now not possible to facilitate GB participation in the Replacement Reserve (RR) market for the Trans-European RR Exchange (TERRE) before the end of 2020.

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View Market Index Definition Statement Review 2020 – consultation open

Market Index Definition Statement Review 2020 – consultation open

Our yearly analysis suggests that there are no further changes to the MIDS required at this time, with the current Individual Liquidity Threshold (ILT), timeband weightings and product weightings remaining suitable.

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View BSC Panel Election 2020 – new panel elected

BSC Panel Election 2020 – new panel elected

The five successful candidates have been announced and will be a part of the BSC Panel for a two-year period from 1 October 2020. 

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View COVID-19: Consumption estimation derogations update

COVID-19: Consumption estimation derogations update

See updates regarding estimation derogations during COVID-19.

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View Changes to BSC Parties and Qualified Persons: August 2020

Changes to BSC Parties and Qualified Persons: August 2020

This page lists changes to the status of BSC Parties and Qualified Persons in August. It includes information on any new markets, registrations, withdrawals and defaults.

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View Changes to Settlement metering for a more flexible system

Changes to Settlement metering for a more flexible system

Consulting has begun on proposals to change the Balancing and Settlement Code (BSC) so that individual asset meters located ‘behind the boundary point’ can be used for Settlement purposes.

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View Hear from Ofgem CEO at our Annual BSC Meeting

Hear from Ofgem CEO at our Annual BSC Meeting

Ofgem CEO, Jonathan Brearley, will be speaking at our virtual Annual BSC Meeting and Seminar on Thursday 10 September from 14:00 to 16:00.

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View Elexon on Market-wide Half Hourly Settlement Programme Manager role

Elexon on Market-wide Half Hourly Settlement Programme Manager role

Elexon have published its views to Ofgem’s consultation about having a Programme Manager (PM) for the introduction of Market-wide Half Hourly Settlement (MHHS).

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View Re-opening Elexon’s office: Building back better

Re-opening Elexon’s office: Building back better

An open letter from Elexon CEO Mark Bygraves about opening the Elexon offices:

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View Progress on our new digital platform

Progress on our new digital platform

The latest circular from the Board to BSC Parties highlights that delivery of system changes to support GB participation in Project TERRE (Trans European Replacement Reserve Exchange, amongst other highlights. 

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View Balancing and Settlement Code sandbox now available for innovators

Balancing and Settlement Code sandbox now available for innovators

Today sees the launch of a new support service where innovators from new and existing companies can trial products and services which could transform the electricity sector

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View COVID-19: End to BSC derogations and suspensions

COVID-19: End to BSC derogations and suspensions

The Performance Assurance Board (PAB) has agreed an approach and timescales for ending the derogations from BSC rules and resuming Performance Assurance Techniques, which have supported BSC Parties in managing the impact of COVID 19. 

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View Performance Assurance Report 2019/20 published

Performance Assurance Report 2019/20 published

The latest Annual Performance Assurance Report (APAR) for 2019/20 has been published. The report looks back at notable achievements and delivery within Performance Assurance in the past year.

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View Insights: Update on Demand Reduction during COVID-19 lockdown

Insights: Update on Demand Reduction during COVID-19 lockdown

In this Insight, our Data & Insight Analyst, Nick Baker provides an update to the reduced electricity demand during lockdown article with the latest findings. The new graphs can be used to track electricity demand changes in Great Britain as COVID-19 restrictions start to ease.

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View Our 2019/20 BSC Annual Report

Our 2019/20 BSC Annual Report

Today (30 June) we have published our Annual Balancing and Settlement Code (BSC) Report for 1 April 2019 to 31 March 2020. The report gives many examples of how Elexon and the BSC Panel have worked together to proactively manage the BSC and support moves to a smarter, more flexible electricity system.

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View BSC Insights: Negative System Prices during COVID-19

BSC Insights: Negative System Prices during COVID-19

While much of the UK economy was shut down between mid-March and Mid-June, due to measures to manage COVID-19, the UK electricity market has seen an increase in negative System Prices. In this Elexon Insight, Emma Tribe explains why this was the case and shows the trends for negative System Prices in April and May 2020.

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View Supplier Charges values and GSP Group liability caps: 2020/21

Supplier Charges values and GSP Group liability caps: 2020/21

Elexon has calculated the Grid Supply Point (GSP) Group liability caps and Supplier Charge values for the BSC Year 2020/21. The Performance Assurance Board (PAB) has approved the revised GSP Group liability caps and Supplier Charges to be applied to the reporting periods April 2020 – March 2021.

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View Government decides outcome from April’s smart meter consultation

Government decides outcome from April’s smart meter consultation

The Department for Business, Energy and Industrial Strategy (BEIS) has published its decision to not require the smart meter Data Communications Company (DCC) to provide an enrolment service for the ‘first generation’ SMETS1 EDMI meter set.

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View Project MARI Workgroups begin next week

Project MARI Workgroups begin next week

Next week Elexon and National Grid ESO will begin the first Workgroups to develop changes to the Balancing and Settlement Code and the Grid Code to support Project MARI – a new European platform for providing balancing services.

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View COVID-19: Submitting estimates during lockdown

COVID-19: Submitting estimates during lockdown

See updates regarding estimation derogations during COVID-19.

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View Technical changes deployed to support Project TERRE

Technical changes deployed to support Project TERRE

A major milestone was reached on 29 May as the technical changes necessary to enable GB industry parties to join the central Trans-European Replacement Reserve Exchange (TERRE) platform and trade in the European electricity market was successfully deployed. 

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View Credit Assessment Price (CAP) – price stays at £30/MWh

Credit Assessment Price (CAP) – price stays at £30/MWh

The Credit Committee deemed it appropriate to keep the Credit Assessment Price (CAP) at the current price of £30/MWh. Discussions were held by the Committee regarding whether to revise the current price of £30/MWh following recent changes in forward market prices.

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View Implementation of Modification P403

Implementation of Modification P403

Modification P403 ‘BSC Arrangements in the event that the TERRE Market is suspended by National Grid ESO’ will be implemented on 28 May 2020.

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View COVID-19: BSC Performance Assurance Board (PAB) approves further derogations

COVID-19: BSC Performance Assurance Board (PAB) approves further derogations

On 3 April 2020, the BSC Performance Assurance Board (PAB) approved temporary derogations from the BSC rules, in accordance with BSCP537, which allowed Suppliers to submit new estimates for non-domestic properties which better reflect their consumption during this period of lockdown.

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View TERRE Delayed: Elexon response to National Grid ESO’s announcement

TERRE Delayed: Elexon response to National Grid ESO’s announcement

On Friday, National Grid ESO announced a delay to implementing the necessary changes that will enable industry parties in Great Britain to participate in the Project Trans-European Replacement Reserve Exchange (TERRE).

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View Insights: Electricity demand down by 17% during COVID-19 lockdown

Insights: Electricity demand down by 17% during COVID-19 lockdown

Measures put in place by the UK Government to control the COVID-19 outbreak have resulted in electricity demand falling sharply in the GB electricity market, according to Elexon data estimates. In this Elexon Insight, our Data & Insight Analyst, Nick Baker investigates the scale of the demand reduction.

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View COVID-19: Managing changes to the Balancing and Settlement Code

COVID-19: Managing changes to the Balancing and Settlement Code

At its monthly meeting on 9 April, the Balancing and Settlement Code (BSC) Panel agreed a set of principles for Elexon to work to, when progressing changes to the code while the industry manages the impact of COVID-19.

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View Smart meter consultation including changes to the BSC

Smart meter consultation including changes to the BSC

The Department for Business, Energy and Industrial Strategy (BEIS) is consulting on whether the smart meter Data Communications Company (DCC) should be required to provide an enrolment service for EDMI SMETS1 (Smart Metering Equipment Technical Specification) meters. EDMI is a meter manufacturer.

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View Making electricity market data more openly available

Making electricity market data more openly available

As part of Elexon’s commitment to improving access to electricity market data, we have now made some electricity Settlement data available via a new Open Settlement Data page.

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View COVID-19: Updated guidance documents on Half Hourly Estimation (V2.1) and Non-Half Hourly Estimation (V2.0)

COVID-19: Updated guidance documents on Half Hourly Estimation (V2.1) and Non-Half Hourly Estimation (V2.0)

On Friday 3 April the BSC Performance Assurance Board (PAB) gave urgent approval to two temporary derogations allowing Suppliers to input more accurate estimates into our Settlement system during COVID-19

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View COVID-19: Suspension of EFR Process, Supplier Charges and more

COVID-19: Suspension of EFR Process, Supplier Charges and more

An updated message from Mark Bygraves, CEO.

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View Message from Mark Bygraves: Supporting Our Customers

Message from Mark Bygraves: Supporting Our Customers

A letter from CEO Mark Bygraves about support during these difficult times.

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View CAP decreases to £30/MWh from 16 April 2020

CAP decreases to £30/MWh from 16 April 2020

On Thursday 16 April 2020, the CAP value will decrease from £36/MWh to £30/MWh.

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View Changes to SAA Settlement Report (SAA-I014)

Changes to SAA Settlement Report (SAA-I014)

From the 1 April 2020, Elexon will stop production and cease support of SAA-I014 (V008). BSC Parties who currently receive SAA-I014 (V008) must ensure their systems are updated to receive either SAA-I014 (V009) or (V010).

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View New Business Plan continues support for industry and Settlement accuracy

New Business Plan continues support for industry and Settlement accuracy

Today Elexon has published the final version of its 2020/21 Business Plan. The industry and the BSC Panel previously commented on the plan and these comments are reflected in the final version.

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View Podcast: ‘Moving the SAD to a Category 3 Item’

Podcast: ‘Moving the SAD to a Category 3 Item’

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View Temporary closure of our office to manage impact of coronavirus

Temporary closure of our office to manage impact of coronavirus

To help manage the impact of the coronavirus, Elexon’s senior management team has decided to close our office from today (Monday 16 March) until further notice.

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View 300th meeting of the Balancing and Settlement Code Panel

300th meeting of the Balancing and Settlement Code Panel

Today (12 March) is the 300th meeting of the Balancing and Settlement Code (BSC) Panel, almost 20 years on from its first meeting on 18 August 2000. 

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View Risk Evaluation Register 2020/21 – consultation period

Risk Evaluation Register 2020/21 – consultation period

We are proposing a revised Risk Evaluation Register (RER) in line with Performance Assurance Framework Review. It also explains the annual process of review whereby existing risks are amended and/or new risks included. 

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View Podcast: P392 ‘Amending BSC Change Process for EBGL Article 18’

Podcast: P392 ‘Amending BSC Change Process for EBGL Article 18’

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View BSC Insights: Highest System Price in 19 years

BSC Insights: Highest System Price in 19 years

The System Price reached £2,242/MWh and £1,708/MWh in the early evening of Wednesday 4 March 2020. This was the first instance of the System Price being over £2,000/MWh since 2001. In this Elexon Insight our Market Advisor, Emma Tribe explains how the System Price was calculated and how it compares to historic System Prices.

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View Streamlining the BSC and improving protection for Trading Parties

Streamlining the BSC and improving protection for Trading Parties

On 27 February, Elexon implemented seven changes to the Balancing and Settlement Code (BSC) as part of the February 2020 BSC release.

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View COVID-19: Strategy for Suppliers regarding EFR and managing performance issues

COVID-19: Strategy for Suppliers regarding EFR and managing performance issues

The Performance Assurance Board (PAB) has agreed an approach to manage performance standard issues and the application of Error and Failure Resolution (EFR). 

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View Elexon’s support for new electricity flexibility exchange

Elexon’s support for new electricity flexibility exchange

Elexon is providing support to technology company Electron which has been awarded funding to trial an exchange where offers of electricity flexibility can be traded.

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View New arrangements for radio teleswitch service solution

New arrangements for radio teleswitch service solution

Elexon has agreed contractual arrangements with Energy Networks Association (ENA) to allow operational cost recovery for the radio teleswitch service (RTS) within the Balancing and Settlement Code (BSC) charging arrangements from 1 April 2020.

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View Update on Project TERRE and our plans for Industry Testing

Update on Project TERRE and our plans for Industry Testing

Elexon is supporting National Grid Electricity System Operator (National Grid ESO) to fulfil its responsibilities for Project TERRE (Trans European Replacement Reserves Exchange).

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View CAP review consultation – decrease from £41/MWh to £36/MWh

CAP review consultation – decrease from £41/MWh to £36/MWh

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View Changes to the Elexon Portal’s password policy

Changes to the Elexon Portal’s password policy

From 27 February we are introducing changes to the password policy for using the Elexon Portal, which provides operational Balancing and Settlement Code data.

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View Podcast: P390 ‘Allowing extensions to Elexon’s business and activities’

Podcast: P390 ‘Allowing extensions to Elexon’s business and activities’

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View Podcast: CP1528 ‘BSC Party responsibility for Commissioning of Measurement Transformers’

Podcast: CP1528 ‘BSC Party responsibility for Commissioning of Measurement Transformers’

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View Podcast: CP1527 ‘Increasing data storage capacity for Settlement Outstations’

Podcast: CP1527 ‘Increasing data storage capacity for Settlement Outstations’

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View COVID-19: Estimation derogations to continue until further notice

COVID-19: Estimation derogations to continue until further notice

Supplier estimation derogations will continue until further notice. The derogations will be reviewed at April’s Performance Assurance Board (PAB) meeting, taking into consideration feedback from the industry.

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View Holiday CALF values (Spring 2021 BSC Season) deadline: 15 February 2021

Holiday CALF values (Spring 2021 BSC Season) deadline: 15 February 2021

If you are a Lead Party of a non-Credit Qualifying Balancing Mechanism (BM) Unit you can appeal against an assigned Credit Assessment Load Factor (CALF) values and Holiday CALF values.

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View Insights: The electricity industry – ten years of change

Insights: The electricity industry – ten years of change

The 2010s were a period of significant change for both Elexon and the wider industry. The shifts seen during the span of ten years were both unprecedented and unpredicted. Elexon provides a wealth of data to industry via the Balancing Mechanism Reporting Service (BMRS), Elexon Portal and through data flows. Using some of this data we have created four graphs that reflect on significant changes to generation, demand and balancing between 2010 and 2019.

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View Changes to BSC Performance Standards for Meter Systems in Measurement Classes F and G

Changes to BSC Performance Standards for Meter Systems in Measurement Classes F and G

Performance Standards for Half Hourly (HH) Metering Systems in Measurement Classes (MC) F and G will increase from 90% of energy settling on actual data at the First Reconciliation Run (R1) to 99% on 1 January 2020.

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View Wind generation output in December was the highest all year

Wind generation output in December was the highest all year

There is more evidence of the move to a lower carbon electricity system in our latest  BSC Operations Headline Report for December 2019 which showed that wind generation produced a monthly total of 5,613 gigawatt hours (GWh) for the GB Market. This was the largest monthly total for wind in 2019.

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View Credit Assessment Price review outcome January 2020

Credit Assessment Price review outcome January 2020

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View Join the Suppliers Charges Review Workshop

Join the Suppliers Charges Review Workshop

We are looking for volunteers to join the Supplier Charges Review Workshop on January 28 2020.  Attendees will discuss whether the Supplier Charges technique needs to be amended. 

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View Insights: Low CO2 fuel sources powered 2019

Insights: Low CO2 fuel sources powered 2019

Nearly half of all the electricity generated in Great Britain in 2019 was generated by low CO2 generation. In this Elexon Insight, our Market Advisor Emma Tribe uses electricity generation data to show how 2019 was powered demonstrate how the electricity market is on the road to Net Zero.

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View The future of open data at Elexon

The future of open data at Elexon

There is no doubt that data, combined with use of new technology, will play a huge part in helping to transform the energy markets. It opens up so many new possibilities for both consumers and energy companies.

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View Help evaluate the Risk Evaluation Register 2020/21

Help evaluate the Risk Evaluation Register 2020/21

As part of our preparations for the 2020/21 Risk Operating Plan, we are asking for input into the perceived importance of the Risks listed in our Risk Evaluation Register. 

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View Latest on Performance Assurance Techniques Workstream

Latest on Performance Assurance Techniques Workstream

We have commenced our main review of Supplier Charges. The Issue 69 Working Group met on 19 September 2019 to review our initial ideas for change. If you were unable to attend the first group, please get in touch and we will be happy to let you know the main themes of discussion.

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View Risk Operating Plan consultation webinar 2019/2020

Risk Operating Plan consultation webinar 2019/2020

Elexon hosted an education webinar on 12 February 2019 to help you respond to this Risk Operating Plan consultation. The webinar was presented by George Player, PAF Risk Analyst.

  • Risk Operating Plan consultation 2019/2020
  • Performance Assurance process documents (includes the ROP)

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