These Regulations revoke and alter provisions of Regulation (EU) 2019/943 of the European Parliament and of the Council of 5 June 2019 on the internal market for electricity (recast) (EUR 2019/943) which relate to resource adequacy in the electricity sector, in particular capacity mechanisms. The Capacity Market, established under Chapter 3 of Part 2 of the Energy Act 2013 (c. 32) is a capacity mechanism. EUR 2019/943 is secondary assimilated law within the meaning of section 12(2) of the Retained EU Law (Revocation and Reform) Act 2023 (c. 28).