The approach to pricing electricity in the UK – known as marginal pricing - means that high wholesale gas prices results in high energy bills for consumers. This is because all electricity generators in the market are paid a fixed price per unit of electricity, which is determined by the most expensive bid needed to meet demand, which currently is often provided by gas plants. Therefore, wholesale electricity prices will be exposed to gas prices even as the proportion of gas generation decreases as renewable electricity generation increases. The energy bills support that government introduced to help both domestic 59 Qq 144, 195 60 Ofgem, Retail market indicators - Breakdown of the default tariff price cap (GBP £, direct debit), 1 October 2022 61 Q 102 62 Qq 15–16 63 HM Treasury, Spring Budget 2023, HC 1183, March 2023 64 Q 143; C&AG’s Report, para 3.22 65 Q119 66 Q 17 20 Energy bills support and non-domestic consumers with their bills in light of the unprecedented high prices in wholesale gas prices that the government estimated, at the end of December 2022 would cost the public purse £69 billion over the schemes’ life.67