Europe’s sovereign AI ambition risks stalling on data centre limits, new research warns

A new survey from infrastructure specialist Onnec warns that Europe's sovereign AI ambitions could be undermined by data centre limitations, including power availability, planning delays, and supply chain constraints. The survey of 300 senior data centre decision-makers found that 74% see sovereign cloud as a significant opportunity, but obstacles such as retrofitting facilities for AI workloads threaten progress. Onnec's global head of data centres, Matt Salter, emphasized that sovereignty is an infrastructure issue, not just a policy one.

Europe’s drive for sovereign AI has rarely looked more urgent, yet the infrastructure meant to carry it may not be ready. As Washington tightens access to its most capable models https://thenextweb.com/news/india-sovereign-ai-anthropic-fable-suspension-debate and Brussels leans harder into the case for European AI sovereignty https://thenextweb.com/news/gpuaas-is-reinforcing-the-illusion-of-european-ai-sovereignty , a new survey from Onnec warns that the continent’s ambitions could be strangled by the plain physics of building and powering data centres. US restrictions on access to advanced AI models have sharpened the appetite for home-grown alternatives, giving European operators a reason to treat sovereign cloud as a commercial prospect rather than a policy talking point. Onnec’s numbers suggest that shift in mood is already showing up in the industry’s own expectations. The infrastructure specialist said 74% of data centre operators believe sovereign cloud represents a significant opportunity for European operators over the next three years. That finding comes from a poll of 300 senior decision-makers, 150 in the UK, 50 in Ireland and 100 across the Nordics, conducted for Onnec by Sapio Research between 27 May and 12 June 2026. All were involved in designing, managing or running data centre facilities, the company said. The demand signals behind that optimism are real. Gartner forecasts that European spending on sovereign infrastructure-as-a-service will rise 83% in 2026, climbing from $6.9bn to $12.6bn https://www.gartner.com/en/newsroom/press-releases/2026-02-09-gartner-says-worldwide-sovereign-cloud-iaas-spending-will-total-us-dollars-80-billion-in-2026 , as part of a global sovereign cloud IaaS market the analyst values at $80bn this year. Policy is pulling in the same direction. The EU’s proposed Cloud and AI Development Act https://digital-strategy.ec.europa.eu/en/policies/cloud-and-ai-development-act , adopted by the Commission on 3 June, aims to at least triple the bloc’s data centre capacity within five to seven years. Running alongside it, the EU’s AI gigafactory programme https://digital-strategy.ec.europa.eu/en/policies/ai-factories is expected to lift demand for the kind of facilities needed to train and run frontier models. Public money is already moving too. In April the European Commission awarded a €180m framework https://commission.europa.eu/news-and-media/news/commission-advances-cloud-sovereignty-through-strategic-procurement-2026-04-17 en to four European providers, letting EU institutions procure sovereign cloud services and signalling that Brussels intends to back its rhetoric with contracts rather than communiqués. The catch, Onnec argues, is delivery. Operators in the survey pointed to power availability, planning delays, rising build costs, supply chain constraints and skills shortages as the main obstacles standing between demand and finished capacity. They flagged a further difficulty on top of those: retrofitting live facilities to handle the higher-density racks that AI workloads demand, without the luxury of pausing operations mid-upgrade. “Operators need to stop thinking about sovereignty as just a policy issue. It is an infrastructure issue,” said Matt Salter, global head of data centres at Onnec. “Sovereign cloud and AI will only be possible if the infrastructure beneath it can be delivered at scale.” Power, planning, skills and live-site upgrades would ultimately decide whether Europe could meet sovereign cloud demand, Salter said. Those pressures are hardly abstract, with some operators already pausing UK projects https://thenextweb.com/news/openai-pauses-stargate-uk-energy-costs-regulation over energy costs and regulation. New capacity, in his view, cannot come from greenfield sites alone. “ New builds take time to plan, approve, power and construct, so Europe also needs to make better use of the facilities it already has,” Salter said, framing existing estate as an underused asset. Retrofitting, though, is the harder road. Upgrading a running data centre for AI is complex precisely because it cannot simply be switched off and rebuilt, and yet Onnec sees it as an unavoidable part of the answer if the region is to turn ambition into secure, scalable and resilient capacity. All of this sits inside a bloc racing to cut its reliance on American infrastructure, a thread that runs through the EU’s recent tech sovereignty package https://thenextweb.com/news/eu-tech-sovereignty-package . On Onnec’s reading, the political will is settled, and the open question is whether Europe can pour concrete, secure grid connections and train engineers fast enough to match it. Get the TNW newsletter Get the most important tech news in your inbox each week.