Technology & Science
Microsoft exits Nscale’s delayed Essex data-center project over power timetable
The withdrawal highlights how grid connections can constrain data-center plans. Nscale says it remains committed to Loughton and is exploring alternative power, while Microsoft says its decision concerns this site alone.
Executive summary
- Microsoft ended one site agreement: Microsoft terminated its agreement for Nscale’s planned data center in Loughton, Essex. The company said the decision applies to a single site; it does not establish that Microsoft has ended its broader relationship with Nscale or its other contracts.[1][2]
- Grid power was the stated constraint: The project faced a long wait for a grid connection. Reuters reported that electricity grid officials did not expect to supply the site until the 2030s. Nscale said it was exploring alternative power sources and other UK expansion sites.[1][2]
- The site’s future remains unsettled: Nscale announced a 50-megawatt Loughton project in 2025, with scope to expand to 90 megawatts. The original announcement described planned infrastructure for Microsoft Azure; the company has not said that a replacement customer or power solution is secured.[3][2]
Microsoft has terminated its agreement for a planned Nscale data center in Loughton, Essex, after the project faced delays in obtaining electricity. Microsoft told Reuters that the decision related to a single site. The statement does not say that the companies have ended their wider relationship, and Nscale said other contracts are unaffected.[1][2]
Reuters reported that grid officials did not expect to supply electricity to the Loughton site before the 2030s. Nscale said it remains committed to the project and is exploring alternative sources of power, as well as other UK expansion sites. Those comments describe options under consideration; they do not establish that replacement supply or a new customer has been secured.[1][2]
Nscale announced the Loughton project in 2025 as a 50-megawatt data-center campus designed for Microsoft Azure, with a plan to scale to 90 megawatts. The company said the initial phase would house 23,040 Nvidia GB300 GPUs. These were announced plans; the withdrawal leaves the site’s eventual timing, power arrangements and tenant uncertain.[3][2]
The decision illustrates a practical constraint on the rapid expansion of AI computing: new facilities need land, equipment and a dependable power connection on compatible schedules. It is evidence of a setback at Loughton, not proof that the UK lacks power for all data centers or that Microsoft has abandoned other infrastructure plans. Nscale’s next steps and any revised connection timetable remain open questions.[1][2][3]