Stopping Gas Dictating UK Energy Price Could Cut Bills by £200, Thinktank Says

Why It Matters

Breaking the link between gas and electricity prices could deliver immediate consumer savings while advancing the UK’s clean‑energy transition and energy‑security objectives.

Key Takeaways

• Gas determines electricity price 85% of 2024
• Decoupling could save households up to £203 annually
• Single‑buyer model moves gas plants to strategic reserve
• Renewables receive fixed, fair prices under new scheme
• Broad political support emerging for energy market reform

Pulse Analysis

The UK’s electricity market remains tethered to volatile fossil‑gas prices, a legacy amplified by recent geopolitical shocks such as the US‑Israeli conflict over Iran. Even though gas now accounts for roughly a quarter of the nation’s power generation, it dictated the wholesale price in 85% of 2024 trading intervals, inflating consumer bills and creating a mismatch between generation mix and price signals. Analysts warn that continued reliance on this structure will expose households to further spikes as global gas markets react to supply disruptions.

Common Wealth’s proposal centers on a single‑buyer framework that would pull gas‑fired plants out of the competitive market and place them in a strategic reserve. Under this reserve, gas would be dispatched only when renewable and nuclear output fall short, and it would be purchased at a price calibrated to avoid excess profits. Simultaneously, low‑carbon generators—wind, solar, and nuclear—would receive fixed, cost‑reflective contracts, eliminating the need for them to absorb the high gas‑derived price cap. This design promises to align market incentives with decarbonisation goals while delivering a clear, calculable saving of up to £203 per household each year.

If adopted, the reform could reshape the UK’s energy landscape by delivering more predictable bills, curbing windfall gains for fossil‑fuel generators, and reinforcing the government’s net‑zero roadmap. Consumer groups see the move as a pathway to a social tariff for vulnerable households, while policymakers view it as a test of political resolve amid an energy crisis. By insulating electricity prices from gas volatility, the UK would not only protect consumers but also accelerate investment in home‑grown, low‑carbon capacity, strengthening long‑term energy security.