Microsoft has withdrawn from Nscale's planned AI data-centre project in Loughton, Essex, after delays pushed the site's expected grid connection into the 2030s. The exit removes the project's anchor tenant and turns electricity access into the central test for Britain's AI-infrastructure push.
The decision applies to one site, Microsoft told Reuters. The company said its broader relationship with Nvidia-backed Nscale remains in place. Nscale also said its other contracts are unaffected and that it is examining alternative power sources for Loughton.
The cancellation arrives as power constraints become a global bottleneck for AI investment. Malaysia has already told some data-centre investors to fund grid upgrades, making the UK setback relevant to developers and utilities across Asia.
Why Microsoft Left the Nscale Data-Centre Project
Nscale had planned to make Microsoft the anchor customer at its Loughton campus. The site was designed to support 50 megawatts initially and scale to 90 megawatts, according to an official Nscale announcement from January 2025.
The project was once scheduled to go live in late 2026. Grid officials later indicated that electricity might not be available until the 2030s, Reuters reported. A cloud customer buying computing capacity cannot treat that delay as a small construction issue: without power, the GPUs cannot enter service and the lease cannot generate its intended revenue.
- Customer impact: Microsoft must secure replacement AI-computing capacity elsewhere.
- Developer impact: Nscale loses the publicly announced anchor tenant for Loughton.
- Financing impact: a delayed connection can leave construction and funding costs running before revenue starts.
- Grid impact: the case raises pressure to distinguish viable projects from speculative connection requests.
The Wider Microsoft-Nscale Partnership Continues
The withdrawal is narrower than a complete break between the companies. Nscale said the relationship remains strong and long term, while Microsoft said it continues to work with the company on digital infrastructure and AI growth globally.
In October 2025, Nscale announced an expanded agreement covering about 200,000 Nvidia GB300 GPUs across Europe and the United States. The company release included deployments in Portugal and Texas as well as the Loughton plan. Nscale says those other contracts are not affected by the Essex decision.
That distinction matters. The reported exit confirms a site-specific cancellation, not the end of Microsoft's entire Nscale relationship. It also does not establish that the Loughton campus has been abandoned. Nscale says it remains committed to the project and is considering alternative sources of electricity.
Britain's Grid Queue Is the Bigger Warning
The Loughton delay sits inside a much larger connection problem. UK regulator Ofgem said in July that data centres accounted for about 73 gigawatts in the demand-connections queue, while contracted demand offers had climbed from 41GW to 125GW between November 2024 and June 2025.
Ofgem proposed commitment fees and progress milestones to remove projects that are unlikely to proceed. The regulator's concern is that weak applications can occupy scarce capacity and delay developments that are ready to build.
The policy response does not guarantee a faster connection for Loughton. It shows why power availability now sits beside land, chips and capital as a core condition for AI development. BullBuzz has also reported on NTT Data's talks for an Anthropic centre in Japan, another sign that AI companies are spreading infrastructure commitments across several markets.
What the UK Setback Means for Malaysia
Malaysia approved 27 data-centre projects worth RM225.97 billion, but approvals do not by themselves supply electricity, water or transmission capacity. The Microsoft-Nscale case shows what happens when a major customer cannot align its computing timetable with a project's power timetable.
For Malaysian developers, the practical questions are now sharper: whether grid-upgrade costs are fully funded, whether gas supply and turbines can arrive on schedule, and whether customers have alternatives if energisation slips. A signed lease is valuable only when the site can deliver usable capacity.
What Investors Should Watch Next
Nscale's next disclosures should show whether Loughton secures another tenant, an alternative power source or a revised completion date. Investors will also watch how the cancellation affects the company's planned US listing and whether Microsoft shifts the workload to another Nscale campus.
The wider test is execution. AI demand remains strong, but the Loughton withdrawal shows that customer contracts, GPU orders and government support cannot replace a dependable grid connection. For Malaysia and other fast-growing data-centre markets, power delivery is becoming the line between an announced project and an operating asset.
This report is for information only and does not constitute investment advice.