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Winter blackout risk hits six-year low
Britain is at the lowest risk of a winter power blackout than at any point in the last six years, the national electricity grid operator has said.
Not since the pre-pandemic winter of 2019-2020 has the risk been so low, the National Energy System Operator (NESO) said. It's thanks to increased battery capacity to store and deploy excess power from windfarms, and a new subsea electricity cable to Ireland that came on stream in April.
The margins between expected demand and supply are now roughly three gas power stations greater than last year, the NESO said. It also comes as Britain and the world reached new records for green power.
For the first time, renewable energy produced more of the world's electricity than coal in the first half of 2025, while in Britain, a record 54.5% of power came from renewables like solar and wind energy in the three months to June. More renewable power can mean lower bills, as there's less reliance on volatile oil and gas markets, which have remained elevated after the invasion of Ukraine and the Western attempt to wean off Russian fossil fuels.
"Renewables are lowering wholesale electricity prices by up to a quarter.
Amir Nisi
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