Nscale's £2 billion AI data center affected by delays in the UK power grid.
Britain aims to become a leader in AI. However, one of its major data centres is unable to power up. Nscale’s £2 billion facility in Essex has secured funding, planning permission, and a grid connection, but lacks timely electricity supply.
Nscale has the finances, site, and clients, but does not have a power connection. Backed by Nvidia, the British AI company is developing a £2 billion data centre in Loughton, Essex, with Microsoft as its primary tenant. Although it received planning approval and a 90-megawatt grid connection, it discovered that power would not be available in time for the site's launch next year, according to Sifted.
As a result, the company is seeking its own power sources. Nscale is exploring on-site energy generation, including discussions with a California fuel-cell manufacturer, instead of depending on the National Grid. “We remain fully committed to the Loughton project,” a representative said.
The unavoidable queue
The issue faced by Nscale is not solely its own; it reflects a broader challenge for Britain. Delays in grid connections have emerged as the primary obstacle for the establishment of new data centres. Some projects in the UK are experiencing waits of nearly a decade for sufficient power. One estimate indicated that over a quarter of data centre capacity was postponed in 2025 alone.
The growing trend is to adopt off-grid solutions. According to industry data, more than 100 UK projects are considering gas generation while they await power from the grid. This situation poses a challenge for a government striving to electrify and decarbonize the economy simultaneously.
Ambition meets reality
The political implications are uneasy. Sir Keir Starmer’s government has identified data centres as essential to its growth strategy and categorized them as critical national infrastructure. However, the grid has not evolved to meet these needs.
“Britain's ambitions for data centre independence will fade if we don't resolve the grid issues,” cautioned Taco Engelaar of the infrastructure firm Neara. One analyst now predicts the country may fall short of its 2030 clean power goal, achieving around 83% instead of the targeted 95%.
Nscale itself is not lacking in confidence, finances, or progress. The company increased its workforce by 121% in the first half of 2026, making it one of Europe’s fastest-growing scale-ups, and recently secured a $900 million credit facility. The bottleneck is not financial, but physical.
A recurring theme
The situation in Essex is just one example of a larger struggle occurring across the West. New York has become the first US state to impose a freeze on new data centres. The governing party in Scotland is also advocating for a moratorium. The surge in data centre development in the US has triggered an unprecedented construction boom in gas power plants. Researchers caution that Europe’s aspirations for sovereign AI could be hindered by similar limitations.
The takeaway is clear and inconvenient: while AI is marketed as software, its operation relies on electricity. Unlike capital, electricity cannot be procured overnight.
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Nscale's £2 billion AI data center affected by delays in the UK power grid.
Nscale's £2 billion data center in Essex is unable to obtain grid power in time for its opening, leading it to pursue its own electricity supply as connection delays in the UK extend for years.