Companies · · 2 min read
Editor: Bohdan S.
Microsoft walks away from Nscale’s UK data center deal, FT reports
Microsoft has reportedly dropped its lease at Nscale's Essex AI site after power was pushed back to the 2030s, a blow to the neocloud weeks before a planned $3bn IPO.
The short answer
Microsoft has abandoned a deal to lease capacity at Nscale's planned data center in Loughton, Essex, the Financial Times (FT) reported. The site may not get grid power until the 2030s. The move hurts Nscale as it prepares a New York listing and adds to investor worries about delays across the AI building boom.
What happened
The Financial Times (FT) reported that Microsoft has pulled out of an agreement to lease capacity at the UK site of Nscale, a so-called neocloud that builds computing hubs for AI. The Telegraph first reported the exit, according to Bloomberg. Microsoft was set to be the anchor tenant at Loughton, in Essex, taking all 50 megawatts there. Authorities have told Nscale not to expect a power supply before the 2030s. Nscale said it remains committed to the project, is looking at other power sources and that the grid problem does not affect its other Microsoft contracts. Microsoft did not comment.
What it means
The issue here is not demand for AI chips but electricity. Loughton was meant to host the UK's largest AI supercomputer, with about 23,000 Nvidia GB300 chips, as part of Microsoft's £22 billion UK investment pledge. A building full of chips is worthless without a grid connection, and the UK has a long queue. Ofgem, the energy regulator, has said some 315 data centers are waiting to connect, asking for about 73 gigawatts, far more than the country's 45-gigawatt peak demand.
The timing is awkward for Nscale. It filed for a New York listing in September and, according to Bloomberg, hopes to raise as much as $3 billion, possibly this month, at a reported valuation of $35 billion. Its filing shows Microsoft and Anthropic together account for around 85% of its contracts. Crypto Briefing put Nscale's contracted backlog at $103.4 billion, with roughly $43.8 billion of it tied to Microsoft, so investors will want to know how much of that pipeline can actually be built on time.
Loughton is not Nscale's only delay. Its flagship site in Norway is six months behind, with just 6.4 megawatts running out of a planned 30. Reports also say Anthropic could walk away from a $45 billion deal if Nscale misses financing or delivery deadlines for a big project in West Virginia. A person familiar with the matter said Loughton was only a small part of Microsoft's total contracts with Nscale.
The news lands in a jittery week for the whole neocloud group. CoreWeave and Nebius shares each fell 24% over five days amid worries about heavy borrowing in the sector. A big customer walking away, even for a reason outside the builder's control, feeds the concern that AI infrastructure is harder and slower to deliver than the headline spending plans suggest.
The bull case
Nscale says the setback stems from a London-area grid problem, not from Microsoft losing interest, and that its other contracts are unaffected. Loughton was a small slice of Microsoft's business with the company. Demand for AI computing remains strong, so another tenant may step in if Nscale finds alternative power. For Microsoft, dropping a site that cannot be powered avoids paying for capacity it could not use for years.
The bear case
Losing the anchor tenant leaves Loughton with no announced customer just as Nscale tries to sell shares to public investors. Its revenue depends heavily on two clients, and delays in Norway and possible penalties raise doubts about its ability to deliver. If the IPO is delayed or priced lower, it could weigh further on CoreWeave, Nebius and other neoclouds that rely on borrowed money to build.
Why it matters
For investors
Neocloud stocks such as CoreWeave and Nebius could stay under pressure as investors weigh delivery risks, and Nscale's planned IPO may face tougher questions on pricing. Microsoft is unlikely to be much affected given the deal's small size.
The wider context
The AI boom depends on physical things like power lines, not just software. Grid bottlenecks could slow returns for investors and add to pressure on electricity networks and bills.
Market impact
| Asset (ticker) | Possible move | Timeframe | Why |
|---|---|---|---|
| CoreWeave (CRWV) | ↓ Down | Short term | A lost anchor tenant at a rival revives doubts about neocloud delivery and debt. |
| Nebius Group (NBIS) | ↓ Down | Short term | Investors may lump neoclouds together after the Nscale setback. |
| Microsoft (MSFT) | ↔ Unclear | Short term | Loughton was a small share of its contracts with Nscale. |
The FinPrism newsroom's view of how these figures could move, as of . It is general news commentary, not a recommendation to buy, sell or hold anything.
Frequently asked questions
Why did Microsoft pull out of the Nscale data center deal?
Reports say the Loughton site in Essex is unlikely to get grid power until the 2030s, years later than planned. Microsoft was going to lease the entire 50-megawatt site. Nscale blamed a London-wide grid issue and said its other contracts with Microsoft are unaffected.
What is Nscale?
Nscale is a UK-based neocloud, a company that builds and rents out large computing centers for AI. It is backed by Nvidia, counts Microsoft and Anthropic as its biggest customers, and has filed to list in New York, where it reportedly hopes to raise up to $3 billion.
Does this affect the Nscale IPO?
It could. The exit removes a headline customer from a flagship UK project just as Nscale tries to attract public investors. Its offering was expected as soon as this month at a reported $35 billion valuation, and investors may now ask harder questions about delays.
Sources: Financial Times, Bloomberg via Yahoo Finance, KuCoin News, Crypto Briefing
How this was made: written with AI assistance from the sources listed above, following our editorial standards.
