ELEXON Circulars

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(Showing items 101-110 of 333)

EL02022: Teleswitch Service Outage – 20 June 2013 Settlement Day [54.6 Kb]

ELEXON have been notified of communication problems with the Central Teleswitch Control Unit (CTCU) that is used to distribute and record the Teleswitch signals. This resulted in a shortfall of switching data from the Droitwich transmitter to the CTCU.

EL02021: Settlement Calendar Update [130.2 Kb] Issue Date: 21 June 2013

This circular contains information on updates to the SVAA/SAA and Post Final Settlement Run Calendars. Further information is contained within the circular.

EL02020: BSC Central Services Planned Downtime: Tuesday 25 June [143.4 Kb]

Following ELEXON Circular EL02015, this is to advise that there will be a ‘planned BSC Agent downtime’ for the BSC Central Services between 03:57 (GMT) and 09:15 (GMT) on 25 June 2013. This downtime is required to implement changes for the June 2013 release (please refer to Release Circular CPC00728 for further details or on the June 2013 Release page).

EL02019: ECVAA System Failure: Tuesday 4 June 2013 [188.5 Kb] Issue Date: 5 June 2013

Further to the BSC Central Services Bulletin 159, published on Tuesday 4 June 2013, this is to provide further information on the ECVAA System Failure that occurred between 12:51hrs and 17:03hrs GMT on Tuesday 4 June 2013.

EL02018: ELEXON Power Outage [61.5 Kb] Issue Date: 4 June 2013

A planned power outage will take place this weekend. Therefore, our IT systems will be unavailable from 18.00 (BST) on Friday 07 June and will be back online from 09.00 (BST) on Monday 10 June. This is an ELEXON IT systems outage and will not affect the BSC Central Systems.

EL02017: BSC Central Services Restored [127.5 Kb] Issue Date: 4 June 2013

Further to ELEXON Circular EL02015 you are advised that the planned downtime completed successfully at 09:15hrs BST on 4 June 2013. The BSC Central Services are now restored.

EL02016: Circulation of Performance Assurance Consultations and Publications [141.8 Kb] Issue Date: 3 June 2013

This circular is to inform you of changes we have made to the way we notify you of impending Performance Assurance consultations and publications. Further information is contained in this circular.

EL02015: BSC Central Services Planned BSC Agent Downtimes in June 2013 [160.1 Kb] Issue Date: 24 May 2013

There will be two ‘planned BSC Agent downtimes’ for the BSC Central Services in June 2013. These downtimes are required to implement technology upgrades on which the BSC Central Services run and to implement changes for the June 2013 release – namely changes to the Settlement Administration Agent (SAA) software and an upgrade to the TIBCO Rendezvous messaging service (to v8.4.0).

EL02014: Update: Incorrect Balancing Services Adjustment Actions in Main Energy Imbalance Price Calculation [70.5 Kb] Issue Date: 24 May 2013

This circular provides an update to circular EL02011: Incorrect Balancing Services Adjustment Actions in Main Energy Imbalance Price Calculation which was published on 26 April 2013 and advised that a scenario had been identified where Balancing Services Adjustment Actions (BSAA) used in the main Energy Imbalance Price were not reflecting the final set of actions taken by National Grid. This circular notes that a permanent fix is being progressed, analysis is in progress and a Trading Dispute is now planned for the 4 July Trading Disputes Committee meeting. Further information is provided in this circular.

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.