About this data
- Adjusted for inflation with the consumer prices index (CPI), in 2025 prices. Each period is adjusted with CPI in its middle month; periods after September 2026 use September's.
- The cap limits the price per unit and the standing charge, not the total bill: households using more energy pay more. All periods are for the amounts of energy Ofgem now counts as typical, so they differ from the cap levels announced at the time.
- From October 2022 to June 2023, the Energy Price Guarantee meant households paid less than the cap: about £2,500 a year for typical use, before the £400 Energy Bills Support Scheme discount.
- Networks are the costs of the gas pipes and electricity wires. Government policies include schemes such as renewables subsidies, the Warm Home Discount and energy efficiency programmes; from April 2026 the government moved most of them from bills to general taxation. VAT was removed from electricity from October 2026 to March 2027.
- Other allowances cover bad debt, the extra costs of the cap's adjustments, payment method costs and headroom.
- Electricity and gas are for single-rate electricity meters and gas, from Ofgem's model of the cap. They leave out levelisation, which since April 2024 has shared some costs between payment methods; for gas and electricity together it adds £6 to £10 a year. Without it, the two add up to the combined bill to within £2.
This chart appears in Energy prices.