The EU will force data centers to disclose how much water and energy they are using

European data centers could be due to report even more data

by · TechRadar

News By Craig Hale Published 23 September 2026

(Image credit: Dell)

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  • Data centers will get a label, just like your fridge or dishwasher
  • Energy and water consumption must be reported by 500kW+ sites
  • The EC also wants to know how resources are being balanced in relation to local strains

The European Commission has proposed a new rating scheme for data centers in a bid to have them report metrics like energy efficiency and water consumption more transparently.

Upcoming changes fall under the new Data Center Energy Efficiency Package, which introduces a new common, EU-wide rating scheme much like what we're already familiar with for household appliances.

Crucially, the changes now affect smaller campuses with a power demand of at least 500kW, whereas only much larger sites were impacted before the new rules.

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European data centers must report efficiency statistics more openly

Some of the new metrics include total energy and water consumption, Power Usage Effectiveness (a figure we're already familiar with in hyperscalers' annual sustainability reports), Water Usage Effectiveness (WUE), how much of their energy comes from renewables, whether waste heat gets reused and more.

Ultimately, the intensified reporting is hoped not only to reveal how much energy sites are using, but how effectively they're balancing consumption in relation to local pressures like water stress.

"Tripling our data centre capacity cannot mean tripling the pressure on our grids, our water and our energy bills," Clean, Just and Competitive Transition EVP Teresa Ribera said.

The changes are also especially notable given ongoing changes within the bloc, because the EU has been ramping up more local compute options so as to reduce reliance on international options in a big sovereign drive. Over the next seven years, the EU wants to triple its data center capacity, per Reuters reporting.

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