The Brussels Desk · IndependentBrussels desk
CommissionTuesday, 22 September 2026 · 2 min read

EU Demands Clear Numbers on What Cloud and AI Tech Drink and Burn

Data centres across the bloc will have to publish their energy and water consumption under new transparency rules.

By Aldo Verheyen · Filed Tuesday, 22 September 2026 · Last updated 03:30 CET

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What happened

The European Union is moving to require data centres to disclose their energy and water efficiency figures. Facilities that power everything from cloud computing to artificial intelligence will have to publish standardized metrics on their resource consumption. The rules bring environmental reporting to an industry whose rapid growth has drawn increasing scrutiny over its strain on local power grids and water supplies.

Why it matters

Data centres require vast quantities of electricity to run servers and substantial amounts of water to cool them. By mandating public disclosure, the EU allows local communities, grid operators, and consumers to see exactly how much resource digital infrastructure uses. Standardised transparency makes direct comparisons possible, putting pressure on tech firms to adopt greener cooling methods and more efficient hardware.

The Brussels angle

In the EU capital, transparency requirements are the standard tool for encouraging industrial change. Rather than setting immediate hard caps on resource use, European regulators prefer to compel comprehensive reporting first. The institutional logic is straightforward: once efficiency numbers are public and standardized across twenty-seven member states, peer pressure and market scrutiny often force companies to improve faster than a slow-moving legislative directive would.

What happens next

Data centre operators across Europe will need to establish standardized monitoring mechanisms to collect and submit their utility metrics. The compiled data will allow EU regulators to assess the sector's collective impact and determine whether stricter, binding efficiency targets will be required in subsequent climate legislation.

data centresenergy efficiencywater usagedigital transition

Written from these sources

Facts are extracted from primary institutional material and written independently by The Gazette desk.

Brussels Correspondent · European Commission

Aldo Verheyen

Aldo Verheyen is The Gazette's Brussels Correspondent, covering the European Commission, its College and the art of the leaked draft. He has reported from the Berlaymont since 2019 and translates proposals into plain English before they become law.

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