EL02013: Settlement Calendars 2013-2014 SVAA & SAA Updated [127.5 Kb]
Issue Date: 13 May 2013
ELEXON received notification that the Supplier Volume Allocation Agent (SVAA) and Settlement Administration Agent (SAA) Settlement Calendars had some date errors involving Settlement Runs R1 & R2.
Dates issued for 1 April 2013 R1 & R2 runs were timetabled for the working day before the respective 28-31 March 2013 periods.
This date error has been rectified and the updated Calendars (v2.0) are published on the ELEXON Portal.
EL02011: Incorrect Balancing Services Adjustment Actions in Main Energy Imbalance Price Calculation [263.7 Kb]
Issue Date: 26 April 2013
In depth analysis of the System Price calculations has revealed a scenario where incorrect Balancing Services Adjustment Actions (BSAA) may enter the main Energy Imbalance Price calculation. The incorrect BSAA can result in the main Energy Imbalance Price being calculated incorrectly. BSAA or Disaggregated Balancing Services Adjustment Data has been included in the price calculation since 5 November 2009 and initial analysis indicates that 0.8% of Settlement Periods have been impacted by more than £0.05/MWh since this date. We are taking steps to resolve this issue and will send a further circular detailing all price impacts once the prices have been re-calculated. Further information is provided in this circular.
EL02010: ECVAA System Failure: Wednesday 03 April 2013 [131.1 Kb]
Issue Date: 3 April 2013
BSC Central Systems suffered an ECVAA System Failure between 06:51 BST and 09:00 BST on Wednesday 03 April 2013. During this period you may have experienced delays receiving Acknowledgements and Negative Acknowledgements for Volume Notifications submitted between these times.
EL02007: BSC Central Services Planned Downtime: Tuesday 26 March 2013 [137.4 Kb]
Issue Date: 19 March 2013
There will be a ‘planned BSC Agent downtime’ for the BSC Central Services between 04:57 (GMT) and 09:15 (GMT) on Tuesday 26 March 2013. The downtime is required to carry out an essential technology fix and is as a result of investigations carried out on the ECVAA System Failure that occurred on Friday 08 March 2013 (ELEXON Circular EL02005).
EL02006: BSC Central Services Restored [127.7 Kb]
Issue Date: 13 March 2013
Further to ELEXON Circular EL02004, you are advised that the planned downtime completed successfully at 09:15hrs GMT on 13 March 2013. The BSC Central Services are now restored.