AI fuels Europe data centre boom amid power crunch

Europe's data centre industry is heading into a new phase of expansion as demand from artificial intelligence and wider digitalisation collides with limits on power supply, grid capacity and planning approvals, according to a new industry report.

The European Data Centre Association said its 2026 assessment points to strong growth in IT power capacity and a wave of investment across the region. It also argues that the main brake on deployment has shifted away from financing and towards access to electricity, connection times and permit complexity.

European IT power capacity rose from 10,539 MW in 2023 to 14,784 MW in 2025, the report found. That figure exceeded earlier forecasts and reflects continued build-out of large-scale campuses and facilities designed around AI workloads.

Investment projections are large. The association expects €176 billion in cumulative investment between 2026 and 2031. The report frames data centres as infrastructure with growing strategic importance for competitiveness and security, alongside a heightened focus on sovereignty requirements.

Beyond FLAP-D

Growth is no longer concentrated in the traditional hubs of Frankfurt, London, Amsterdam, Paris and Dublin. The report describes rapid decentralisation across Southern Europe, the Nordics, Central and Eastern Europe and a range of smaller metropolitan areas.

This shift is linked to energy considerations as well as market demand. Hyperscale expansion is moving towards regions where renewable generation is more available and operating conditions are seen as favourable. The report notes that AI training workloads tend to favour areas with abundant power, including the Nordics and parts of Southern Europe.

Development patterns are also changing. Scale colocation campuses and AI-optimised facilities account for a growing share of new builds. The report forecasts a compound annual growth rate above 25% through to 2031 for scale colocation.

Retail and wholesale data centre sites are still expanding, but their share of new capacity is falling, the report said. Customers are seeking multi-building environments that can accommodate higher-density computing and expansion over longer periods.

Power bottlenecks

Electricity constraints sit at the centre of the report's analysis. Power availability was identified as the top challenge by 67% of operators. Grid congestion and long connection timelines were cited as factors slowing new deployments in many locations.

These constraints are emerging alongside a rapid change in technical requirements. The report said AI clusters are pushing rack densities beyond 100kW, which has implications for facility design and operational practices.

Cooling approaches are also shifting. Higher densities are driving increased use of liquid and hybrid cooling architectures, according to the findings.

The report also places data centre growth within broader energy-system planning. It calls for more grid investment and permitting reform, alongside stronger cross-border coordination in Europe. It argues that these steps have become more urgent as data centres integrate more closely with energy systems.

Economic footprint

The association estimates the sector contributed €53 billion to GDP in 2025. It expects that figure to rise to €137.5 billion by 2031.

Employment effects are also highlighted. The report said the ecosystem supports more than 300,000 direct high-skilled jobs.

Beyond direct economic measures, the report points to local and regional impacts from large campuses. It lists district heating schemes, grid-flexibility services, renewable power purchase agreements and community infrastructure among examples of local benefits linked to the presence of data centres.

Sustainability measures

The report ties the sector's expansion to climate and regulatory requirements, with a focus on reporting and transparency. It points to the ongoing application of the Energy Efficiency Directive as a driver of more consistent reporting across markets.

European data centres now source 90% of their energy consumption from renewable energy, the report found. It also described progress on water usage effectiveness, renewable procurement and heat reuse integration.

The report said there are "outstanding examples of biodiversity, heat‐reuse and community‐benefit projects across Europe." It links this activity to public concerns about the scale and impact of new facilities.

Michael Winterson, Secretary General, European Data Centre Association, positioned the sector's growth in the context of wider geopolitical and policy pressures.

"The exceptional growth of Europe's data centre market is welcome news at a time when international volatility has focused many geographies on digital sovereignty and security," said Michael Winterson, Secretary General, European Data Centre Association. "Once the issues of power availability and access are addressed, Europe has the opportunity to lead globally in AI-ready infrastructure while maintaining the highest standards of sustainability and responsible stewardship."

The report argues that progress on grid readiness and permitting will shape how quickly Europe can add capacity for cloud and AI workloads over the next several years, with energy access set to remain the defining constraint on new build-outs across multiple markets.