Holiday CALF values (Spring 2021 BSC Season) deadline: 15 February 2021

If you are a Lead Party of a non-Credit Qualifying Balancing Mechanism (BM) Unit you can appeal against an assigned Credit Assessment Load Factor (CALF) values and Holiday CALF values.

You can do this if you believe your assigned CALF does not accurately represent your expected activity.

CALF values appeal process

To raise an appeal:

  1. please complete the CALF appeals pro forma in Appendix 7 (page 50) of the CALF Guidance Note
  2. submit your completed form to the BSC Service Desk by Monday 1 February 2021

To find out more about CALF appeals, please see Section 12 (page 30) of the CALF Guidance Note.

Holiday CALF values appeal process

To raise an appeal:

  1. complete the Holiday Ratio pro forma
  2. return it to the BSC Service Desk.

The Holiday CALF deadline for the Spring 2021 BSC Season is Monday 15 February 2021, 10 working days before the start of the Season.

CALF Values for Spring

The CALF values for Spring 2021, which runs from 1 March to 31 May 2021, can be found on the CALF page of the Elexon Portal.

About the CALF

Each Primary BM Unit is given a CALF value for each Season. These are calculated based on the Primary BM Unit’s performance in the previous equivalent Season. 


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