Iran War: UK Gas Prices Spike and July Energy Bills Look Worse
The US military launched strikes on Iranian nuclear facilities on the night of 27 February 2026. By morning, wholesale gas prices had surged more than 30% as markets digested what the attack meant for supply routes through the Strait of Hormuz and the stability of the Gulf energy complex.
For UK households, the impact was immediate in financial markets. Energy companies began adjusting forward contracts within hours. The April price cap had already been set — locking in a £117 reduction — but analysts were already turning their attention to July, and the picture was not good.
Why the Strait of Hormuz matters for UK bills
The Strait of Hormuz is the transit point for approximately 20% of global LNG trade. The UK imports around 22% of its gas from LNG sources — Qatar being the largest supplier. Any credible threat to close the Strait sends spot gas prices upward immediately, regardless of whether supplies are actually disrupted, because energy traders price in the risk premium well before any physical shortage occurs.
Gas prices had been gradually normalising since the Russia-Ukraine spike of 2022. That process has now reversed sharply. Cornwall Insight noted the July cap calculation would absorb the new volatility regardless of how quickly the conflict stabilised — Ofgem's methodology captures a rolling window of wholesale prices, so a sustained spike always feeds through to the next cap.
The structural case for generating your own electricity
UK electricity bills remain 40–45% higher than 2021 levels. The brief April relief is threatened by what comes in July. Each successive energy price crisis — 2022, 2026 — makes the same argument: the most durable protection against wholesale gas volatility is generating electricity you don't have to buy from the grid.
A plug-in solar kit generating 650kWh annually displaces approximately £156–£174 of grid electricity at current to forecast tariff rates. That saving is entirely insulated from gas price movements. Sunlight doesn't have a spot price. If you're weighing up whether to act now, our plug-in solar payback calculator works through the numbers honestly. For a full picture of where bills are heading, see our July price cap forecast.
