Microsoft Pulls Out of £2bn Loughton AI Data Centre Project

Microsoft has terminated its involvement in Nscale's £2bn plan to build the UK's largest AI data centre in Loughton, Essex. The BBC reported the withdrawal. Microsoft declined to comment.

Nscale says it will build the facility regardless. "We remain committed to both the Loughton project and the UK and we are exploring alternative power sources for the site, in addition to other expansion sites in the UK," the company said in a statement.

What happened at Loughton?

Nscale announced the £2bn pledge last year. The plan called for a pioneering AI facility in the Essex town. Microsoft was to fund a supercomputer at the site. Only last month, Microsoft said some of the $30bn (£22bn) it is investing in the UK would fund that Loughton supercomputer.

That commitment is now dead. Microsoft has pulled out of the project entirely. It offered no explanation, declining to comment when approached.

The timing matters. Microsoft's exit comes weeks after its public pledge. The reversal leaves Nscale hunting for a new anchor partner — or a new business model — for the site. A spokesperson said the relationship with Microsoft "remains strong and long-term" for their other projects overseas. The two companies still work together in Norway, Portugal and the United States.

Why is the power supply the real problem?

The deeper issue is electricity. The data centre was due to receive its grid connection at the end of this year. That will not happen. As first reported by the Telegraph, Nscale has been told the connection will not arrive until the 2030s.

That is a delay measured in years, not months. For a facility built to serve AI workloads, a grid date in the 2030s is commercially fatal without an alternative. Hence Nscale's sudden interest in "alternative power sources." The company frames the failure as infrastructure-wide, not site-specific.

"This unfortunate London-wide grid issue has no impact on our other contracts," Nscale told the BBC.

The mechanism is straightforward. AI data centres draw enormous amounts of power, far more than conventional cloud facilities. The London grid cannot deliver that capacity on the original timeline. National infrastructure, not capital, has become the binding constraint. Nscale has the £2bn pledge. It cannot plug the machines in.

What does Microsoft's exit signal?

Microsoft's withdrawal separates two things investors often treat as one: money and megawatts. Microsoft has committed $30bn to the UK. It clearly still wants UK capacity. But it will not wait a decade for a grid connection at one specific site when it can deploy capital elsewhere.

For Nscale, the calculus is different. The company has staked its UK identity on Loughton. It calls the project the country's largest AI data centre. It promised 250 permanent jobs when the facility opens. Walking away would carry reputational costs Microsoft does not face.

The company is also keeping its options open beyond Essex. Its statement referenced "other expansion sites in the UK" — a signal that Nscale may distribute its buildout across locations with faster grid access rather than concentrate it in Loughton.

What comes next?

Nscale must now solve two problems at once. It needs replacement power for Loughton, and it must decide whether the £2bn pledge stays anchored there. Alternative power sources, in practice, mean on-site generation or contracted capacity outside the strained London grid.

The UK government has courted AI investment heavily, and Microsoft's $30bn commitment was a headline win. The Loughton episode shows the weak link. Capital moves at deal speed. Grid connections move at decade speed. Until that gap closes, more projects could hit the same wall — and more investors could follow Microsoft out the door.