Ofgem lifted the household energy price cap by 13 % effective July, pushing the average annual bill to £1,862 for a typical home. The increase marks the highest level since early 2024 and adds £221 to a consumer’s yearly outlay. The move reflects soaring wholesale gas costs tied to the Middle East conflict.

Wholesale gas prices are about 60 % above pre‑war levels because disruptions near the Strait of Hormuz threaten roughly 20 % of global LNG trade. Renewables have softened the spike, keeping the rise milder than the 2022 post‑Ukraine shock. The government’s April relief package trimmed about £150 from bills, but analysts warn another 2 % cap hike could push winter rates to £1,899.

Labour energy secretary Ed Miliband called the hike “deeply unwelcome” and pledged to keep fuel‑duty frozen while accelerating home‑insulation programmes. Chancellor Rachel Reeves unveiled targeted agrifood tariff cuts but deferred any summer energy cash aid until autumn, focusing on the poorest households. The cap rise intensifies pressure on the government to expand fiscal support this winter.

Investors watch the cap adjustment as a bellwether for UK utility earnings. Higher retail rates boost revenue forecasts for the ‘Big Six’ but also risk demand contraction as consumers curb usage. Analysts expect the sector’s net profit margins to narrow unless the government introduces broader subsidies or accelerates the clean‑energy transition to dampen wholesale price volatility.