AI data centres could undermine UK’s net zero goals

by | Nov 3, 2026 | Climate Change

AI data centres could undermine UK's net zero goals

The UK government’s commitment to achieving net zero carbon emissions by 2050 faces potential complications from its recent policy regarding artificial intelligence data centres, according to investigative reporting by BBC File on 4. During the recent Budget announcement, Chancellor John Healey introduced provisions allowing data centre operators to construct onsite power generation facilities while awaiting grid connections.

Research has identified four planned hyperscale data centres—three located in southern England—that are evaluating gas-fired power generation to address their electricity requirements. According to calculations, if these facilities operated continuously at maximum capacity, they would require 1.3 gigawatts of power and generate approximately 4.1 million tonnes of carbon emissions annually, exceeding the combined emissions of Manchester, Liverpool, and Southampton. The projects include facilities at Acre Slough west of London, Wapsey’s Wood adjacent to the M40 in Buckinghamshire, Quest Park near a planned Universal theme park in Bedfordshire with a one-gigawatt power load, and a Cardiff location.

The underlying challenge stems from the UK’s electricity grid operating at capacity. Energy regulator Ofgem reports that data centre developers are requesting grid connections totaling 72 gigawatts, compared to the nation’s peak electricity demand of 45 gigawatts last year. Consequently, some developers face potential wait times exceeding ten years for grid infrastructure upgrades, prompting interest in temporary on-site power generation solutions.

Critics, including Labour MP Toby Perkins and environmental groups, have expressed concerns about reliance on natural gas contradicting climate objectives. The government maintained that data centres are economically vital and established the British Data Centre Covenant, requiring operators to invest in communities and protect water supplies in exchange for prioritized grid access. Officials stated that any behind-the-meter power generation would remain strictly controlled, time-limited, and restricted to strategically exceptional projects lacking alternative grid capacity options.

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