ELEXON Circulars

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(Showing items 91-100 of 645)

EL02344: Erroneous System Price of £3,000/MWh today [106.6 Kb] Issue Date: 30 November 2015

A £3,000/MWh System Price was calculated and published on www.bmreports.com today at Settlement Period 27.

EL02343: Risk Operating Plan 2016/17 consultation published [108.7 Kb] Issue Date: 30 November 2015

This consultation asks respondents to review the Risk Operating Plan (ROP) 2016/17, and to submit any comments to Melinda Anderson by 18 December 2015.

EL02342: Resolved: Settlement issue caused by erroneous data from a single Half Hourly Data Aggregator to a number of Suppliers [125.5 Kb] Issue Date: 27 November 2015

Issue resolved

This Circular confirms that the Settlement issue caused by erroneous data from a single Half Hourly Data Aggregator to a number of Suppliers is now resolved. The Circular also provides a summary of corrective action taken to date and an overview of future corrective actions.

EL02341: Missing Half Hourly data in the Midlands (_E) GSP Group for 5 November 2015 Settlement Final (SF) Run [112.8 Kb] Issue Date: 27 November 2015

On 5 November 2015 we implemented P300 ‘Introduction of new Measurement Classes to support Half Hourly DCUSA Tariff Changes (DCP179)’. From this date, Half Hourly Data Aggregators (HHDAs) have been sending revised versions of the Aggregated Half Hour Data File (D0040) or BM Unit Aggregated Half Hour Data File (D0298) data flows to the Supplier Volume Allocation Agent (SVAA). D0298 files received from an HHDA have differed in structure to that expected by the revised SVAA software. This has resulted in the incomplete loading of HH data.

EL02340: Update on issue with National Grid’s calculation and reporting of De-rated Margin and Loss of Load Probability data [108.6 Kb] Issue Date: 27 November 2015

Further to ELEXON Circular EL02337, this communication provides Parties with an update on the issue with National Grid’s calculation and reporting of De-rated Margin and Loss of Load Probability data which are published on Balancing Mechanism Reporting Services (BMRS) and feed through into the calculation of Loss of Load Probability (LoLP) values and Reserve Scarcity Prices (RSP).

 

EL02339: Planned BSC Agent downtime impacting REMIT and Transparency pages on BMRS: 28-29 November 2015 [109.8 Kb] Issue Date: 27 November 2015

There will be planned downtime on the REMIT and Transparency pages of the Balancing Mechanism Reporting Service (BMRS) taking place between 23:00 (GMT) on Saturday 28 November and 07:00 (GMT) on Sunday 29 November 2015.

EL02338: Decrease in the Credit Assessment Price (CAP) to £42/MWh effective from Thursday 24 December 2015 [108.2 Kb] Issue Date: 27 November 2015

Following consultation with Trading Parties, the Credit Committee determined that the Credit Assessment Price (CAP) value will be decreased to £42/MWh, effective from Thursday 24 December 2015.

The CAP is used in the calculation of Trading Parties’ Credit Cover Percentage.  Parties may notice a change in their Credit Cover Percentage as a result of the CAP being decreased from the current value of £47/MWh.

EL02337: Issue with National Grid’s calculation and reporting of De-rated Margin and Loss of Load Probability data [113.1 Kb] Issue Date: 26 November 2015

There is an ongoing issue with the National Grid systems used to generate the De-rated Margin (DRM) values which are published on Balancing Mechanism Reporting Services (BMRS) and feed through into the calculation of Loss of Load Probability (LoLP) values and Reserve Scarcity Prices (RSP).

EL02336: Ongoing issue with Settlement due to an error by a single Half Hourly Data Aggregator to a number of Suppliers [120.5 Kb] Issue Date: 26 November 2015

Further to ELEXON Circular EL02335, this communication provides Parties with an update on the actions we are taking to address the impact of a Half Hourly (HH) Data Aggregator (DA) Party Agent system issue that resulted in erroneous data being submitted to Settlement.

EL02335: Ongoing issue with Settlement due to an error by a single Half Hourly Data Aggregator to a number of Suppliers [135.5 Kb] Issue Date: 25 November 2015

Further to ELEXON Circular EL02334, this communication provides Parties with an update on the actions we are taking to address the impact of a Half Hourly (HH) Data Aggregator (DA) Party Agent system issue that resulted in erroneous data being submitted to Settlement.