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Economy
Apr 17, 2026

UK Plans to Raise Windfall Tax on Low-Carbon Electricity Generators

AI Summary
The UK government is set to increase the windfall tax on low-carbon electricity generators to help limit household energy bills. Chancellor Rachel Reeves may announce the plans alongside a consultation on reforming the link between gas market prices and electricity costs.

UK Chancellor Rachel Reeves is poised to raise the government's windfall tax on low-carbon electricity generators to help limit household energy bills. The levy, introduced in 2022, targets excess profits made by owners of older renewable energy and nuclear plants.

The chancellor is ready to hike the electricity generator levy, which currently stands at 45%, as electricity market prices soared following Russia's invasion of Ukraine. The increased tax will help shield consumer energy bills in the short term while the government consults on long-term plans to reform the wholesale market.

The government is also expected to consult on plans to shift older, low-carbon projects onto newer set-price contracts, providing electricity at a guaranteed price. This move aims to weaken the link between gas market prices and electricity costs, which has led to a surge in electricity market prices across Europe.

Executives across the industry have been informed to expect contact from officials on Monday to outline the government's determination to protect electricity costs from the surge in gas markets. The plans have already impacted shares in energy companies, with SSE falling over 6% and Centrica closing down 5% on Friday.

The proposed reforms have sparked concerns within the industry, with some viewing them as a fundamental reform of energy markets. The government is considering radical proposals, including removing gas plants from the market and holding them in strategic reserve.