ELEXON Home Page
0870 010 6950

ELEXON beta website: view the new website design and let us know what you think.

ELEXON Circulars

Show 10 | 20 | 50 | All

(Showing items 101-110 of 224)

EL02703: ELEXON power outage: Saturday 16 and Sunday 17 September 2017 [109.3 Kb] Issue Date: 11 September 2017

A planned power outage will take place between 7:00 (BST) Saturday 16 September and 19:00 (BST) Sunday 17 September 2017. This is an ELEXON IT systems outage and will not affect the BSC Central Systems.

During the outage, the networks will be intermittently unavailable; therefore, we will be unable to receive TIBCO messages, which are used for calculating the Balancing Mechanism (BM) Prices. As a result, the BM Prices for Settlement Days Saturday 16 September 2017 and Sunday 17 September 2017 may be less reliable than usual. This will not be corrected until we have data from the Interim Information (II) run for these two Settlement Days.

EL02702: Planned MIDP Outage on Tuesday 12 September 2017 - Impact on BMRS System Price Calculations [113.0 Kb] Issue Date: 7 September 2017

ELEXON has been advised by one of the Market Index Data Providers (MIDPs), EPEX SPOT power UK, of a planned outage due to take place on Tuesday 12 September 2017 between 18:30 (BST) and 21:30 (BST). This means the Market Index Data used to calculate the Market Index Price will not be provided to BSC Central Services by this MIDP for Settlement Periods 41-43 (inclusive).

 

 

EL02701: Resolved: Issue affecting National Grid’s Market Operation Data Interface System (MODIS) [106.2 Kb] Issue Date: 7 September 2017

Further to ELEXON Circular EL02700, National Grid has informed us that the issue which had been affecting access to the MODIS (Market Operation Data Interface System) has now been resolved.

EL02700: Issue affecting National Grid’s Market Operation Data Interface System (MODIS) [185.0 Kb] Issue Date: 6 September 2017

National Grid has informed us that they have been experiencing an issue affecting access to the MODIS (Market Operation Data Interface System).
This issue has prevented users from submitting ETR/REMIT data into MODIS via FTP and subsequently this data being sent to the BMRS for publication. In turn, this data is not being sent to the ENTSO-e Transparency Platform. Users are still able to submit ETR/REMIT data using the MODIS user interface.

EL02699: Increase in the Credit Assessment Price (CAP) to £55/MWh effective from Tuesday 26 September 2017 [108.6 Kb] Issue Date: 5 September 2017

The Credit Committee met on 5 September 2017 to determine the new CAP. On Tuesday 26 September 2017, the Credit Assessment Price (CAP) value will be increased to £55/MWh from the current value of £43/MWh.

EL02698: Issue affecting National Grid’s Market Operation Data Interface System (MODIS) and Transmission Outage Generator Availability (TOGA) systems [110.4 Kb] Issue Date: 1 September 2017

National Grid has informed us that they have been experiencing a communication issue affecting access to the MODIS (Market Operation Data Interface System). MODIS sends Loss of Load Probability (LoLP), De-rated Margin (DRM), REMIT and Transparency data from National Grid to the Balancing Mechanism Reporting Service (BMRS).

EL02697: BMRS planned downtime: Tuesday 5 September 2017 [108.2 Kb] Issue Date: 1 September 2017

There will be planned downtime for the Balancing Mechanism Reporting Service (BMRS) between 17:00 (BST) and 17:30 (BST) on Tuesday 5 September 2017. During this planned downtime there will be a delay in receiving, loading and publishing data on the BMRS website as well as via the API and Data Push services. In addition users of the TIBCO service will see a delay in the publishing of TIBCO messages via their High Grade Communications Lines. There will also be a delay in the data sent to ENTSO-E Transparency Platform from BMRS.

EL02696: Consultation on Draft Reference Network Mapping Statement (NMS) for P350 [114.5 Kb] Issue Date: 31 August 2017

This Circular invites you to review the draft reference Network Mapping Statement (NMS) and return any comments to ELEXON (P350Implementation@elexon.co.uk), using the review form available on the P350 implementation page on the ELEXON website, by 17:00 on Thursday, 14 September 2017.

EL02695: Credit Assessment Price (CAP) review consultation now closed – Credit Committee will meet next week [110.8 Kb] Issue Date: 30 August 2017

A consultation paper on the value of the CAP was issued on Monday 21 August 2017 following a breach of the CAP trigger level. Parties were invited to indicate whether they agreed with the proposal to increase the value of the CAP to £50/MWh from its current approved level of £43/MWh.

The consultation closed on Tuesday 29 August 2017. Not all responses were in agreement with the proposed value and therefore, in accordance with the CAP Review Guidance, a Credit Committee meeting will be held week commencing 4 September 2017.

EL02694: Planned National Grid MODIS Downtime: Tuesday 5 September 2017 [109.7 Kb] Issue Date: 30 August 2017

National Grid has informed us that there will be two short periods of planned downtime on MODIS (Market Operation Data Interface System) between 11:05 (BST) and 14.00 (BST) on Tuesday 5 September 2017. Each of these periods will last approximately 15 minutes. Users will be able to submit data via SFTP to MODIS during the downtime, though they may notice delays. This data will be queued and processed after the outage has completed.