TL;DR
Energy regulator Ofgem has disclosed that more than 140 data centre projects are seeking grid connections totalling over 50 gigawatts — more than Britain’s peak daily energy demand of around 45GW. The surge threatens clean energy targets, delays other infrastructure projects, and could push up consumer bills.
The Scale of Demand
The numbers are stark. Over 140 data centre projects have applied for grid connections, driven by tech giants and developers as the government seeks to attract global AI investment. If all projects were built and operated at full capacity, they would consume more electricity than the entire rest of the country.
Ofgem said the volume of requests “exceeds even the most ambitious demand forecasts,” creating “rapidly growing demand queues” and “unprecedented large-load connection requests.” The regulator expects a “significant number” of projects in the queue are “likely non-viable,” but their presence is holding up more advanced or important developments.
Threats to Clean Energy and Consumer Bills
The energy demands pose a direct threat to Ed Miliband’s target of meeting 95% of Britain’s electricity demand with clean power by 2030. Ofgem warned that the surge could delay projects that are “critical for decarbonisation and economic growth.”
Consumer costs are another concern. In the US, wholesale electricity prices near major data centre hubs have spiked well beyond national averages, with some regions seeing energy costs climb 267% over the past five years, according to Bloomberg. In the US, Anthropic has committed to covering any price increases for American consumers, stating: “AI companies shouldn’t leave American ratepayers to pick up the tab.”
The Global Power Grab
Tech companies are increasingly securing their own energy supplies. Meta plans to harvest electricity from dedicated gas power plants. Microsoft announced plans in 2024 to reopen the Three Mile Island nuclear power plant for 20 years. These moves often rely on fossil fuels, despite the companies’ stated environmental commitments.
Looking Forward
The UK faces a fundamental tension: attracting AI investment while managing the infrastructure and environmental costs. With grid connection demand already exceeding peak national usage, decisions made now about which projects proceed — and how energy costs are shared — will shape both Britain’s AI ambitions and its energy transition.