Offtaker of Last Resort levelisation process schedule 2026 to 2027

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The levelisation process will only run if a Backstop Power Purchase Agreement (BPPA) is in effect in the OLR year 1 April 2025 - 31 March 2026. If the OLR process is activated, we will carry out levelisation periodically and annually. The periodic levelisation schedule for the OLR year 1 April 2026 - 31 March 2027 includes the key dates and deadlines for the levelisation process. ## Periodic levelisation timetable | | | | | | | --- | --- | --- | --- | --- | | Quarterly Period | Deadline for submission of BPPA generation data to Ofgem | Date on which Ofgem will send out invoices/ credit notices to all relevant suppliers | Deadline for submitting payments into the levelisation account | Date on which Ofgem will make relevant payments from the levelisation account | | 1 April - 30 June 2026 | 10 July 2026 | 28 July 2026 | 11 August 2026 | 21 August 2026 | | 1 July - 30 September 2026 | 16 October 2026 | 30 October 2026 | 13 November 2026 | 27 November 2026 | | 1 October - 31 December 2026 | 15 January 2027 | 29 January 2027 | 12 February 2027 | 23 February 2027 | | 1 January - 31 March 2027 | 16 April 2027 | 30 April 2027 | 14 May 2027 | 28 May 2027 | The schedule for the annual levelisation process includes the key dates and deadlines for the yearly reconciliation process for 1 April 2026 - 31 March 2027. ## Annual levelisation timetable | | | | | | | --- | --- | --- | --- | --- | | OLR Year | Deadline for submission of BPPA generation data to Ofgem | Date on which Ofgem will send out invoices/ credit notices to all relevant suppliers | Deadline for submitting payments into the levelisation account | Date on which Ofgem will make relevant payments from the levelisation account | | 1 April 2026 - 31 March 2027 | 03 August 2027 | 07 September 2027 | 20 September 2027 | 30 September 2027 | Further information on what is required as part of the levelisation process is available on the [OLR Essential Guide for Suppliers](https://www.ofgem.gov.uk/guidance/offtaker-last-resort-olr-essential-guide-suppliers). 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