Research and analysis

Fuel mix disclosure data table

The data are for the disclosure period 1 April 2021 to 31 March 2022.



The information constitutes the ‘fuel mix data disclosure data table’, as defined in the Electricity (Fuel Mix Disclosure) Regulations 2005.

View guidance from Ofgem about Fuel Mix Disclosure. Under the new licences introduced on 1 August 2007, fuel mix disclosure is supply licence condition 21 in place of licence condition 30A quoted in the guidelines.

Published 1 February 2005
Last updated 1 August 2022 + show all updates
  1. Added fuel mix disclosure data for 2021 to 2022.

  2. Added an indicative estimate for 2021 to 2022 to aid planning.

  3. Added fuel mix disclosure data for 2020 to 2021.

  4. Updated to add estimated loss factor for 2020/21 and to add note to table 3 – Environmental Regulations.

  5. Fuel mix disclosure data for 2019 to 2020.

  6. Fuel mix disclosure data for 2018 to 2019.

  7. The UK fuel mix figures (Table 4) have been updated to 2 decimal places to address rounding.

  8. The fuel mix disclosure residual published on 1 August 2018 has been revised to correct an error in the original calculation.

  9. Fuel mix disclosure data for 2017 to 2018.

  10. Residual fuel mix figures updated following revisions to the original data supplied by industry.

  11. Fuel mix disclosure data for 2016 to 2017.

  12. Updated fuel disclosure mix table.

  13. Fuel mix disclosure data table.

  14. Latest fuel mix disclosure table published.

  15. Published this year's figures.

  16. First published.