Overview
- Microsoft confirmed Monday that it has terminated its agreement to be the anchor tenant at Nscale’s planned Loughton, Essex facility after UK Power Networks warned sufficient grid capacity may not arrive until the early-to-mid 2030s.
- The Loughton site had been designed to host roughly 23,040 Nvidia GPUs and supply about 50MW initially, but Microsoft’s exit leaves the project without its only publicly announced customer.
- Nscale says its wider partnership with Microsoft remains intact and that it is exploring alternative power sources for Loughton and other UK sites while continuing with other projects.
- The termination intensifies scrutiny of Nscale’s September S‑1 disclosure that showed about $103.4 billion in contracted value concentrated heavily in a few customers, which could force its planned NYSE IPO to be delayed or repriced if sites cannot be energized on schedule.
- The episode highlights a structural constraint for fast-build AI data centres: grid transmission upgrades and local connection work often lag developer timetables, which can leave costly hardware idle, raise financing risk, and slow the UK’s plans to scale sovereign AI capacity.