This will reduce exposure to gas price spikes, but it will take 5–10 years to have a significant impact on bills.
The average UK energy bill is £1,928 per year (October 2024 price cap), down from the peak of £4,279 in January 2023 but still double pre-crisis levels (£1,042 in 2021). Bills soared in 2022 after Russia's invasion of Ukraine caused global gas prices to spike 10x, with UK heavily reliant on gas (40% of electricity, 80% of heating). The Ofgem price cap limits what energy suppliers can charge per unit of gas/electricity, updated quarterly based on wholesale costs, protecting 29 million households. You can save £100-300 per year by: switching to fixed tariffs (if cheaper than cap), reducing thermostat by 1°C (saves £80/year), using energy-efficient appliances, and insulating your home. Standing charges (£334 per year average) are fixed daily fees covering network costs, charged even if you use zero energy, and are controversial for penalising low users. UK energy bills have doubled since 2021 and are unlikely to return to pre-crisis levels without major government intervention or a shift to renewables. The UK's reliance on gas, limited storage, and poorly insulated homes make it vulnerable to global energy shocks. The shift to renewables will reduce this vulnerability, but it will take 5–10 years. In the meantime, households must reduce energy use, switch to cheaper tariffs, and insulate their homes to cut costs.