Microsoft is withdrawing from a multi-billion-pound AI data center project in Loughton, UK, due to significant power supply issues. The US tech giant had reserved capacity with the British operator Nscale; however, the grid operator, UK Power Networks, does not expect to be able to provide the necessary electricity until the 2030s. The facility was originally scheduled to begin operations as early as 2027. As a result, the project—which is backed by the British government—has lost its primary intended client. At the same time, the situation puts multi-billion-pound investments, planned jobs, and the UK’s AI strategy at risk.
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Power supply for AI data center not secured until the 2030s
The project in the county of Essex was set to become one of the UK’s most powerful AI data centers. The operator, Nscale, initially planned for an electrical connection capacity of 50 megawatts, with the facility designed to be expandable to 90 megawatts. It was intended to house approximately 23,000 high-performance processors from the US chip manufacturer Nvidia, with Microsoft planning to utilize the computing capacity for its cloud platform, Azure.
However, the necessary power supply will not be available in time. According to sources close to the project, UK Power Networks will not be able to provide sufficient grid capacity until the early to mid-2030s. This could delay the facility’s launch by at least three years. Consequently, the original timeline has lost its economic viability for Microsoft, and the company has since terminated its agreement with Nscale.
Multi-billion-pound investment and hundreds of jobs at risk
The British government had presented the 2025 project as a key component of its national AI strategy. The investment was valued at approximately two billion pounds, with up to 750 jobs linked to the initiative. However, by March 2026, a scaffolding company was already occupying the designated site. Nscale has since vacated the premises.
Microsoft’s withdrawal now exacerbates existing economic challenges; Nscale has effectively lost the only publicly named customer for its planned facility. Meanwhile, the Nvidia-backed company is pursuing an initial public offering (IPO) in New York, with recent speculation suggesting a potential valuation of $35 billion. Without a reliable grid connection and long-term committed customers, securing financing will likely become more difficult.
Power grid emerges as a bottleneck for major new projects
The issue extends well beyond the Loughton site. According to the Financial Times, there are 315 data center projects in the UK currently in the pipeline, with a combined grid connection requirement of approximately 73 gigawatts. For context, the UK’s peak electricity demand has recently hovered around 45 gigawatts—though the 73-gigawatt figure represents requested capacity rather than the actual simultaneous power demand.
Nevertheless, the scale of these figures highlights a growing conflict between digitalization and energy infrastructure. AI data centers require vast amounts of electricity, high-capacity grid connections, and a consistently reliable power supply. Furthermore, their high power density creates an additional need for cooling. Simply building new power plants or generation capacity will not solve the problem; sufficient transmission and distribution network capacity at each specific location is equally critical.
Nscale seeks alternative energy supply for data center
Despite Microsoft’s withdrawal, Nscale remains committed to the site. The company is therefore exploring alternative energy sources, including the possibility of generating power directly on-site. It is also evaluating additional locations within the UK. Whether this will allow the original timeline to be met, however, remains unclear. Collaboration with Microsoft on other projects—including those in Norway—is set to continue.
This development also highlights a fundamental contradiction in British technology policy: the government promotes multi-billion-pound investments in artificial intelligence while failing to provide the essential prerequisites for their implementation. Political announcements of investment cannot serve as a substitute for power generation capacity or reliable grid connections. When companies are forced to wait years for sufficient electrical capacity, even well-funded projects lose their planning foundation. The Loughton case thus underscores that the expansion of the digital economy is directly dependent on a robust energy infrastructure.
Author: Blackout News
Sources: The Times (19.10.26) – Financial Times (19.10.26) – Reuters (18.10.26) – The Guardian (18.10.26)