CP1492

Formal title: Causes and treatment of large Line Loss Factors

Current Status

Submission
Assessment
CPC Consultation
Committee Decision
Awaiting Implementation
Implemented

Summary

Line Loss Factors (LLFs) are values which are calculated and applied to Metered Volumes, scaling the Metered Volumes to account for distribution losses. Supplier Volume Allocation Group (SVG) SVG191 discussed two instances of high Supplier Volume Allocation (SVA) LLF values submitted for Balancing and Settlement Code Settlement Year 2017/18.

The SVG noted the values were calculated correctly in accordance with Balancing and Settlement Procedures (BSCP) 128 ‘Production, Submission, Audit and Approval of Line Loss Factors’ and should be used for Settlement purposes in 2017/18.

At the request of SVG191, ELEXON raised Issue 65 ‘Causes and treatment of large Line Loss Factors’. The Issue Group recommended introducing a 17th LLF Methodology Principle to BSCP128. This will be for scenarios where low energy consumption/generation volumes for a Seasonal Time of Day (SToD) period result in a LLF value that may not be reflective of actual losses at the site.

CP1492 proposes making the necessary changes to BSCP128 recommended by the Issue 65 Group.

Progression

ELEXON raised CP1492 on 21 June 2017. It will be presented for information to the ISG on 25 July 2017 and to the SVG on 1 August 2017. CP1492 was issued for CP consultation on 7 August 2017 with responses due by 1 September 2017.
CP1492 closed for consultation on 1 September 2017. It was approved by the ISG on 26 September 2017 and the SVG on 3 October 2017.

CP1492 was implemented on 22 February 2018.

Next Events

CP1492 was implemented on 22 February 2018 as part of the February 2018 release

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