List of all BSC Change Proposals
These pages list all Change Proposals (CP) issued since 2001. These are detailed proposals which are raised to amend CSDs and/or BSC Systems, but would not alter the BSC. They must have a clear aim, a single defined solution and contain the relevant redlined documentation changes.
CP1596 ‘Define the change process for BSC Owned Interfaces in the REC’s EMAR’
This CP seeks to update BSCP40 to define processes for changing EMDS items.
CP1595 ‘Correcting the D0148 flow in BSCP520 – CP1590 fix’
CP1595 will remove D0148 from 3.1.12 in BSCP520: Unmetered Supplies Registered in SMRS. The change will ensure references to the Data Transfer Network flows (D0148 in this case) is inputted for its correct use.
CP1594 ‘Creating an Approval Process for New and Legacy Communication Types’
Older metering communication types are quickly becoming redundant and are being replaced by newer communication types. Elexon are proposing to create an approvals process to allow for the managed end dating of older technologies, such as Public Switched Telephone Network (PSTN), Circuit Switched Data (CSD) and subsequently 2G.
CP1593 ‘New Interconnector Fuel Type Category: Greenlink’
Changes are needed to the Insights Solution to ensure data relating to the new Greenlink Interconnector is provided to market participants alongside existing data relating to Settlement arrangements in the Great Britain (GB) electricity market.
CP1592 ‘Upgrade of NHHDA and EAC/AA systems from Oracle 12c to version 19.21’
Upgrade NHHDA and EAC/AA systems to the latest available version of Oracle 19.21.
CP1591 ‘New Site Visit Check Code Valid Set value’
The implementation of Distribution Connection and Use of System Agreement (DCUSA) Modification DCP411 ‘Charging De-energised sites’ involves updating the J0024 data set by adding a new Enumeration Value.
CP1590 ‘Enabling use of DTN agent appointments process for P434’
Enabling suppliers who may be considering the use of DTN derived Dataflows to meet the requirements to migrate their Unmetered Supply (UMS) portfolios over the 12 months up to the UMS mandate go live date.
CP1589 ‘Create Additional Market Participant Role Codes’
Market Participant Role Code’ is a single character alphanumeric value which is used as a unique identifier for certain Market Roles. There are 36 possible Role Codes to be allocated to different Market Participant Roles, which are defined in the Market Domain Data (MDD). In order for new Market Roles to be created in the future, a change to the format of the ‘Market Participant Role Code’ Data Item is required to increase the number of available Role Codes. Moving to a two-character alphanumeric value would provide hundreds of new potential Market Participant Role Codes.
CP1588 ‘Mandating Calibration Checks for Main and Check Meters’
This CP proposes to provide an assurance process to confirm whether a Meter Type is still operating within the allowed accuracy limits or is drifting towards, or beyond, the extreme end of the limits. It will also define the steps to be taken where an issue is identified mitigating the risk to Settlement. CP1588 originates from Issue 93 ‘Review of the BSC Metering Codes of Practice’.
CP1587 ‘Obsolete Metering Equipment’
Providing a process and transition period to remove unsupported assets and mitigate the risk to Settlement.
CP1586 ‘Defining the requirements for Minimum Burden and CT ratios’
In some cases, the Current Transformer (CT) ratios for the maximum current of the circuit is not appropriately selected, even though these ratios are vital for accurate energy settlement as they ensure safe and precise current conversion, maintain metering equipment within its optimal operating range, and uphold regulatory compliance standards. CP1586 originates from Issue 93 ‘Review of the BSC Metering Codes of Practice’.
CP1585 ‘Submission of Half Hourly data for Embedded LDSO sites to Host LDSO’
This CP proposes that the Half Hourly Data Collector send Half Hourly data for Embedded LDSO connected sites to the Host LDSO via D0275 and/or D0036 to improve the quality of forecasting and reduce manual effort.
CP1584 ‘Allow non-BSC Parties to raise Change Proposals, add a CP withdrawal process and remove BCA/PACA concept’
BSC Issue 102 ‘BSC Change Process Review’ identified several improvements to align and simplify BSC Change processes on solution ownership and recommended Elexon make changes to several current processes described within BSC Procedure (BSCP) BSCP40 “Change Management”.
CP1583 ‘Rationalising publication of European Transparency Regulation (ETR) data on Elexon Systems’
The ETR data published on the Balancing Mechanism Reporting Service (BMRS) was intended to provide additional insights to the market with approximately 40 reports currently available. This CP identifies several of these reports which are believed to be of minimal value to Elexon’s customers as the data is duplicated in other reports, has had no data reported, or has been superseded by subsequent regulatory changes.
CP1582 ‘Update BSCP520 on Change of Measurement Class to ensure the UMSO send a D0388 with a zero charge code’
CP1582 was originally raised as a housekeeping Change Proposal (CP) to update BSCP520 ‘Unmetered Supplies Registered in SMRS’ step 3.6.2.3, as introduced erroneously by P434 ‘Half Hourly Settlement for UMS Metering Systems’], states “UMSO confirms the de-energisation date to Supplier, NHHDC and MA”’ as Non Half Hourly (NHH) Unmetered Supply (UMS) sites don’t have a Meter Administrator (MA).
Following an objection to the CP as housekeeping, and subsequent consultation period, CP1582 has been expanded to provide greater clarity and alignment with industry process for BSCP520 where a Change of Measurement Class (CoMC) event has occurred.
CP1581 ‘Recommendation to update BSCP18 following Issue 105’
The Issue 105 ‘Further considerations following implementation of BSC Modification P448′ Workgroup has recommended a number of improvements to BSC Procedure (BSCP) 18 ‘Corrections to Bid-Offer Acceptance Related Data’.
CP1580 ‘Making the Code Subsidiary Documents (CSDs) gender neutral and Housekeeping’
CP1580 seeks to make the Code Subsidiary Documents (CSD) gender-neutral in line with the Balancing and Settlement Code (BSC) and present day legal drafting and to correct BSCP602 with a housekeeping change.
CP1579 ‘Allowing HHDCs to undergo Protocol Approval before completing Qualification’
This Change Proposal will allow Half Hourly Data Collectors (HHDCs) and Asset Metering Half Hourly Data Collectors (AMHHDCs) to undergo Protocol Approval before or during the Qualification process.
CP1578 ‘Enabling Embedded LDSOs to submit Site Specific LLFs’
This CP proposes updates to remove issues that may stop Embedded LDSOs from submitting Site Specific LLFs. These updates will define the process for submitting Site Specific LLFs, including establishing deadlines and requirements for the Embedded and Host LDSOs.
CP1577 ‘To clarify the sending of a D0151 is required for all COS NHH loss processes’
BSCP504 requires the outgoing supplier to send a D0151 to terminate their NHHDC appointment on Change of Supply. The positioning of clause 3.2.6.4(a) implies this is only required for non DCC serviced metering systems, whereas this should be a requirement for all metering systems. This CP amend BSCP504 to clarify that 3.2.6.4(a) applies to all Metering Systems.
CP1576 ‘New Interconnector Fuel Type Category: Viking Link’
Changes are needed to the Balancing Mechanism Reporting Service (BMRS) to ensure data relating to the new Viking Link Interconnector is provided to market participants alongside existing data relating to Settlement arrangements in the Great Britain (GB) electricity market.
CP1575 ‘Permitting the use of busbar voltage transformers within metering Codes of Practice 1 and 2’
This CP seeks to implement the recommendation from the Issue 87 ‘Busbar voltage transformer (VT) metering for Offshore wind farms under OFTO arrangements’ Workgroup by updating Code of Practice 1 and Code of Practice 2 to allow busbar VTs to be used at Offshore and onshore wind farms.
CP1574 ‘Improving the use of the D0215 data flow in the relevant industry processes’
This CP seeks to implement the recommendation from the Issue 99 Workgroup, which involves updating Balancing and Settlement Code Procedure (BSCP) 515 ‘Licensed Distribution’ and the Retail Energy Code (REC) Meter Operator Schedule 14 documents to streamline the use of the D0215 flow in its associated processes.
CP1573 ‘Amendments to the IDD Pt 1 Spreadsheet, SVA DC and REC EMAR Data Specification for P376’
This Change Proposal seeks to amend the IDD Part 1 Spreadsheet, SVA Data Catalogue Volume 2 and the Retail Energy Code’s’ EMAR Data Specification to ensure that the BSC Configurable Items accurately reflect the P376 solution.
CP1572 ‘Specifying the requirements to provide SLDs for HV and EHV sites’
Currently there is no requirement in the BSC to produce SLDs despite a number of BSC processes requiring one to be submitted. Without the requirement to produce SLDs being specified, some Parties have not felt incentivised to create them.
CP1571 ‘Clarify the number of Meter measuring elements and measurement transformers’
The Metering Codes of Practice (CoPs) specify the number of measuring elements required to be metered in relation to the number of primary system conductors. However, the requirements don’t appear to be sufficiently clear or are not being complied with.
CP1570 ‘Housekeeping amendments to include reference to ‘Asset Metering Virtual Lead Party’’
CP1570 is a Housekeeping change seeking to correct minor errors identified during the preparation for implementation of Approved Modification P375 ‘Settlement of Secondary Balancing Mechanism (BM) Units using metering behind the site Boundary Point’ as part of the June 2022 BSC Release.
CP1569 ‘Amendments to the IDD documentation to align with SAA migration’
This Change Proposal will seek to amend the IDD documentation to reflect SAA no longer having access to a shared database with CRA and CDCA plus will document the interface ‘BM Unit Period Metered Volume’.
CP1568 ‘Inclusion of new LDSO-mastered SMRS data items’
This Change Proposal will include new LDSO-mastered SMRS data items in the SVA Data Catalogue, the REC EMAR Data Specification and BSCP604.
CP1567 ‘New BSC Procedure (BSCP) for Assurance Information Requests (AIRs)’
The AIR is a Performance Assurance Technique (PAT) which was introduced in May 2022. Currently there is no related BSCP for an AIR, therefore when issuing an AIR, there is no written obligation on Parties to adhere to the request.
CP1566 ‘Introducing the CVA Commissioning End to End Check (CEEC) process’
CP1566 seeks to formalise the Central Volume Allocation (CVA) Commissioning End to End Check (CEEC) process in BSCP02, BSCP20, BSCP38, CoP4 and CDCA Service Description for new and existing CVA Metering Systems.
CP1565 ‘Updates to address Central Management System issues’
This CP seeks to update BSCP520 to contain clearly outlined processes for approval and fault reporting of Central Management Systems.
CP1564 ‘Amendments to the approved IDD spreadsheets for P399’
CP1564 is a Housekeeping change seeking to update the the New Electricity Trading Arrangements (NETA) Interface Definition Documents Part 1 and 2 that were approved under P399 ‘Making the identity of Balancing Service providers visible in the Balancing Services Adjustment Data’ to correct a defect impacting sub-flows 3 & 4 of the SAA-I014 Settlement Reports.
CP1563 ‘Altering the Trigger Point and subsequent Timescales for Commissioning SVA CT Operated Metering Systems and issue of Data Flow’
CP1563 seeks to update some of the trigger points for Current Transformer (CT) Commissioning and subsequent sending of data flows as the Proposer considers that they are not appropriate for CT operated metering systems of all types.
CP1562 ‘Amendments to the approved IDD changes for P375’
CP1562 seeks to update the New Electricity Trading Arrangement (NETA) Interface Definition Documents(IDD) Part 1 and 2 that were approved under P375, to provide clarity to the relevant Parties that make use of the document.
CP1561 ‘Updating SVA DC Volume 1 and 2 for CP1546’
CP1561 looks to update the Supplier Volume Allocation (SVA) Catalogue Volume 1 and 2 to include the approved data flows and data items from CP1546.
CP1560 ‘Demand Control Event Process Clarifications’
This CP seeks to clarify the processes that take place after a Demand Control Event by amending the relevant Code Subsidiary Documents to ensure clarity and consistency.
CP1559 ‘Complex Sites Process Improvements’
This Change Proposal will deliver improvements to the Complex Sites process.
CP1558 ‘New Registration data items to facilitate MHHS’
This Change Proposal will introduce new Registration Service data items and supporting BSC processes into existing Supplier Meter Registration Service (SMRS) systems.
CP1557: Housekeeping change to update CP1532 solution
CP1557 makes non-material changes to update the CP1532 solution to reflect changes made to BSCP502 ‘Half Hourly Data Collection for SVA Metering Systems Registered in SMRS’ following the implementation of P420.
CP1556 ‘Improving the CVA Qualification Testing experience for VLPs and AMVLPs’
CP1556 looks to update BSCP70 ‘CVA Qualification Testing for Parties and Party Agents’ and the Communication Requirements Document to include a test request process and a list of P-flows for VLPs and AMVLPs.
CP1555 ‘Consumption data for Measurement Classes G and F’
This CP proposes to update the requirements in BSCP502 to require HHDCs to send D0036 or D0275 for non-Data Communications Company (DCC) enrolled Metering Systems and/or D0380 for DCC enrolled Metering Systems to Licenced Distribution System Operators (LDSOs).
CP1554 ‘Future proofing the measurement transformer standards’
CP1554 looks to future proof the measurement transformer standards in Code of Practices 1, 2, 3, 4, 5 and 10
CP1553: Meters and Current Transformers minimum accuracy classes
This Change proposal looks to tighten the requirements for Meters and Current Transformers in the Code of Practice.
CP1552 ‘Reflecting BSCP501 timeframes in BSCP520 processes’
CP1552 seeks to provide clarity to market participants about the timeframes for various processes in BSCP520 ‘Unmetered Supplies Registered in SMRS’.
CP1551 ‘Measuring Instruments Regulations – updates to BSCP601’
CP1551 seeks to update BSCP601 ‘Metering Protocol Approval and Compliance Testing’ so it aligns with new Government legislation for new Meters being placed on the GB market.
CP1550: Updates to monitoring of voltage failure alarms requirements
This Change Proposal looks to simplify the management of phase failures and update the requirements of voltage failure alarms.
CP1549 ‘Amendment of BSCP516 to clarify the criteria for Non-Domestic SVA Metering Systems’
CP1549 seeks to remove the text from BSCP516 ‘Allocation of Profile Classes and SSC’s for Non Half Hourly SVA Metering Systems Registered in SMRS’ that suggests a Change of Measurement Class from HH to NHH Profile Classes 3 or 4 is not possible so that it aligns with the correct interpretation of the rules set out in the BSC.
CP1548 ‘Remove constraint requiring BMRS to publish data files in a specific CSV format and structure’
This change proposal, CP1548, seeks to remove the specification of particular download formats in NETA IDD Part 1 Document paragraph 4.13 and be housed and maintained in the BMRS API and Data Push User Guide
CP1547 ‘Clarification on Site Specific LLF Calculation Process for Embedded LDSOs’
CP1547 seeks to provide clarity for Embedded LDSOs that choose to calculate Site Specific Line Loss Factors rather than Mirroring, through updates to BSCP128.