Europe Told To Cool Its Datacenter Boom Before Water, Power Run Short

Why It Matters

Unchecked growth threatens grid stability and water security, risking public backlash and higher operational costs for operators.

Key Takeaways

• EU datacenter power demand could triple by 2030
• Cooling systems may consume up to 38% of datacenter electricity
• Large facilities can use up to 19,000 m³ water daily
• Inefficient sites risk grid overload and water shortages
• Regulators urged to tie incentives to water‑energy efficiency

Pulse Analysis

The European Union is witnessing a rapid expansion of hyperscale data centers, driven by cloud providers and AI workloads. Grundfos estimates the continent’s IT load stands at roughly 10 GW today and could climb to 35 GW by 2030, effectively tripling the current demand. That surge would lift data centers’ share of total electricity consumption from about 3 percent to as high as 9 percent within a decade. Such a trajectory threatens to outpace the capacity upgrades planned for many national grids, raising concerns among utilities and policymakers.

Cooling accounts for a disproportionate slice of a data center’s resource footprint. Grundfos reports that on average 38 percent of a facility’s electricity is devoted to cooling, while the largest hyperscale sites can draw between 11,300 and 19,000 cubic meters of water each day—enough to supply roughly 150,000 EU households. In regions already grappling with water scarcity, such demand can exacerbate local shortages and trigger public opposition. Moreover, the intertwined nature of power and water in cooling loops means that inefficiencies amplify grid stress, especially during peak summer periods.

Regulators are therefore urged to embed water‑ and energy‑efficiency criteria into data‑center permitting processes. The report recommends tax credits, green‑finance instruments and grant schemes for projects that demonstrably cut cooling consumption, as well as incentives for linking server halls to district‑heating networks that recycle waste heat. Such policy levers could steer investment toward liquid‑cooling, free‑cooling and AI‑driven thermal management technologies, reducing both electricity and water use. By aligning fiscal incentives with sustainability goals, Europe can sustain its digital ambitions without jeopardising grid reliability or water security.