Why High Energy Prices Have Halted OpenAI's Stargate UK Plan

High electricity prices and tightening grid conditions have prompted OpenAI to pause its multi‑billion‑pound Stargate UK data centre development – a move that underscores the growing energy pressures shaping Britain’s digital infrastructure plans.

The company attributes the suspension to soaring power costs and ongoing uncertainty around regulation.

The project, first announced in September 2025 with hardware partners Nscale and NVIDIA, was intended to bolster the UK’s AI computing capacity through energy‑intensive GPU clusters.

At the time, OpenAI CEO Sam Altman said: “The UK has been a longstanding pioneer of AI, and is now home to world-class researchers, millions of ChatGPT users and a government that quickly recognised the potential of this technology.

“Stargate UK builds on this foundation to help accelerate scientific breakthroughs, improve productivity and drive economic growth.

“This partnership reflects our shared vision that with the right infrastructure in place, AI can expand opportunity for people and businesses across the UK.”

Energy strains hit Cobalt Park

The proposed facility was due at Cobalt Park in North Tyneside, with additional sites in discussion.

Early plans projected 8,000 GPUs being deployed in early 2026, scaling up to 31,000 GPUs as capacity grew across power‑hungry sectors including finance and national security.

Intended as a smaller counterpart to OpenAI’s domestic Stargate scheme – a US$500bn network expansion in the US – the North East site has now reached a standstill.

Industry observers point to electricity prices among the world’s highest, coupled with lengthy grid connection lead times, as major deterrents for hyperscale operators. Nscale declined to comment, while NVIDIA has equally refrained from public statements.

An OpenAI representative confirmed a strategic pivot while expressing confidence in future UK operations.

"We see huge potential for the UK's AI future," the spokesperson said. "London is home to our largest international research hub and we support the government's ambition to be an AI leader."

Copyright uncertainty adds complexity

Beyond energy affordability, regulatory haze around copyright and data access has slowed physical infrastructure investments.

Lawmakers earlier this year considered a copyright exemption mechanism that would allow AI developers to use creative works for model training.

The proposal was withdrawn after criticism from content creators, leaving companies uncertain about compliance requirements.

This legislative pause mirrors the stalled momentum in physical deployments. Without clearer rules, firms remain cautious over long‑term commitments involving power‑hungry compute systems.

Policy and investment outlook

The UK’s technology strategy has placed growing emphasis on clean, reliable energy to underpin data and AI growth. Stargate UK originally formed part of a broader £31bn (US$42bn) package of tech investment announced in 2025.

A UK Government spokesperson defended Britain’s investment climate, citing over £100bn (US$134bn) in private commitments under the current administration.

"Our focus is on continuing to create the right conditions for investment in the UK's AI and data centre infrastructure," the spokesperson said.

"We are continuing to work with OpenAI and other leading AI companies to strengthen UK compute capacity."

With rising demand for low‑carbon power and delayed grid upgrades, ensuring stable supply for high‑density AI sites remains central to policymaking in the North East and beyond.

Future operations and energy prospects

OpenAI insists it has not fully retreated from British expansion, continuing to negotiate with Nscale over next steps.

"AI compute is foundational to that goal – we continue to explore Stargate UK and will move forward when the right conditions such as regulation and the cost of energy enable long-term infrastructure investment," the company stated.

The business remains active in aligning its operations with green energy initiatives and public sector AI integration, reaffirmed in its July 2025 Memorandum of Understanding.

"In the meantime, we are investing in talent and expanding our local presence, while also delivering on the commitments under our MOU with the Government to adopt frontier AI in UK public services," they added.