Technology · NEWS EXPLAINER
Microsoft exits Nscale’s Essex AI data-center deal: what changed and what remains open
Microsoft has withdrawn from the planned Loughton agreement after delays and power constraints. Nscale says the site remains alive and other Microsoft contracts are unaffected, but no replacement tenant, new power solution or revised opening date has been announced.
Microsoft has pulled out of its agreement for Nscale’s planned AI data center in Loughton, Essex. The move removes the project’s expected anchor tenant after power and timing problems, but Nscale says it remains committed to the site and that its other work with Microsoft is unaffected.
Microsoft has left the Loughton agreement
Microsoft has withdrawn from its agreement for Nscale’s proposed AI data center in Loughton, Essex. Reuters reported that Microsoft was one of Nscale’s two largest customers, while The Guardian described it as the expected anchor tenant and the site’s only publicly announced customer. That makes the exit a project-level setback, not a confirmed end to the broader Microsoft–Nscale relationship.
The original plan was unusually large
Nscale’s September 2025 announcement described a 50-megawatt campus scalable to 90 megawatts, initially housing about 23,040 NVIDIA GB300 GPUs from the first quarter of 2027. The facility was intended to support Microsoft Azure services in the United Kingdom. Those specifications explain why the loss of the planned anchor tenant matters, but they are historical commitments rather than a current construction timetable.
Power availability is the central constraint
Reuters said the project had suffered repeated delays and that power-grid officials did not expect a supply connection until the 2030s. The Guardian separately reported that power problems had already created a lengthy wait, and that the proposed location was still operating as a scaffolding yard when it investigated the site in March. Microsoft did not publicly give Reuters a reason for withdrawing, so the safest wording is that the project faces a severe power-and-timing problem rather than that any one cause has been formally confirmed by Microsoft.
Nscale says the site itself is not canceled
Nscale told Reuters and The Guardian that it remains committed to Loughton and the United Kingdom and is exploring alternative power sources and other UK expansion sites. It also said the London-wide grid problem does not affect its other contracts with Microsoft. No replacement anchor tenant, revised opening date or secured alternative power supply was announced in the reports.
The next useful checks are concrete
Readers should watch for three verifiable updates: a confirmed replacement customer, a documented power solution and a revised construction or opening schedule. Until one of those appears, the most accurate summary is narrower than a general collapse of Microsoft’s AI infrastructure plans: Microsoft has exited this Loughton agreement, Nscale says the project remains alive, and the original Q1 2027 plan is no longer a dependable guide.
