ELEXON Circulars

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(Showing items 1-10 of 359)

EL02148: EL02148 - Risk Operating Plan 2015/16 Consultation [129.5 Kb] Issue Date: 31 October 2014

This consultation asks respondents to review the Risk Operating Plan (ROP) 2015/16, and to submit any comments to melinda.anderson@elexon.co.uk. Responses to this consultation will be presented to the Performance Assurance Board (PAB) meeting on 30 October 2014. All responses should be submitted by  21 November 2014. Further information is located within the circular.

EL02147: Completed: Planned National Grid BSAD Outage Wednesday 29 October 2014 [105.6 Kb] Issue Date: 29 October 2014

Following on from ELEXON Circular EL02142 we have been informed by National Grid that the planned BSAD outage has been successfully completed.

EL02146: Withdrawal from the Balancing and Settlement Code – Phillips 66 Trading Limited (Party ID: PH66) [111.0 Kb] Issue Date: 29 October 2014

This is notification that Phillips 66 Trading Limited will withdraw from the Balancing and Settlement Code (BSC) on 29 October 2014, in accordance with section A5.1 of the Code.

EL02145: Issue with the Breakdown of VAT on Default Charge Repays Displayed on Combined Advice Notes between 23 October and 29 October 2014 [108.8 Kb] Issue Date: 29 October 2014

We are aware that there is an issue where the breakdown of VAT on default charge repays on Combined Advice Notes (CAN) issued between 23 October and 29 October 2014 is displayed incorrectly.

EL02144: Withdrawal from the Balancing and Settlement Code – Npower Cogen Trading Ltd (Party ID: COGTRA01) [109.9 Kb] Issue Date: 21 October 2014

This is a notification that Npower Cogen Trading Ltd will withdraw from the Balancing and Settlement Code (BSC) on 22 October 2014, in accordance with section A5.1 of the Code.

EL02143: Security upgrade: SSL POODLE vulnerability [111.1 Kb] Issue Date: 21 October 2014

We have recently become aware of a new Secure Sockets Layer (SSL)  bug referred to as ‘Padding Oracle On Downgraded Legacy Encryption’ or ‘POODLE’ which can involve a ‘man in the middle attack’ allowing someone to exploit the vulnerability to get access to data.

EL02142: Planned National Grid BSAD Outage: Wednesday 29 October 2014 [111.2 Kb] Issue Date: 20 October 2014

We have been notified by National Grid that there will be planned downtime between 13.00 (GMT) and 15.30 (GMT) on Wednesday 29 October 2014 which will affect submission of Balancing Services Adjustment Data (BSAD) to the BSC Central Services. Please note that these times are approximate and ELEXON will send out further communication to notify Parties when work has been completed.

EL02141: Treatment of Volume Notification on the ‘Long’ Clock Change Day: Sunday 26 October 2014 [113.4 Kb] Issue Date: 16 October 2014

UK time changes on 26 October 2014 from British Summer Time (BST) to Greenwich Mean Time (GMT)/ Coordinated Universal Time (UTC) at 02.00 (BST). This will result in a ‘long’ day as the clocks ‘go back’ an hour.

EL02140: Inaccurate Transmission Loss Multipliers for Settlement dates between 13–25 September 2014 [109.6 Kb] Issue Date: 10 October 2014

Inaccurate Transmission Loss Multipliers, reflecting low and negative transmission losses, appear for 13 Settlement dates from 13 to 25 September 2014.

EL02139: Intermittent TIBCO disconnects on the High Grade Communications Network - Resolved [106.0 Kb] Issue Date: 7 October 2014

Following on from ELEXON Circular EL02138 we have continued to monitor the High Grade Communications Network over the last 24 hours and have seen no further interruptions to the TIBCO feed during this time. We therefore consider this issue to be resolved.