UK Energy Price Cap Forecast to Hit Three-Year High of £1,729 in October 2026

Cornwall Insight's final forecast sets the UK energy price cap at £1,729 per year for a typical household from October 2026 — a roughly 4% (£66) rise to the highest level since July 2023. Near four-year-high wholesale gas prices, driven by Middle East war disruption and European heatwaves straining grid demand, are pushing bills up. Another rise is expected January 2027.