EU Proposes Energy, Water Rating Labels for Data Centers Starting 2027

The EU has proposed a data center energy rating scheme amid growing sustainability concerns. The move will require data centers in the regional bloc to disclose how efficiently they use water and energy. The EU currently trails the U.S. in AI development partly due to high energy costs that affect European businesses and households. 

Why is the EU Introducing Data Center Ratings?

In recent years, AI infrastructure projects have sparked backlash from local communities globally as power demands drive electricity costs up. The EU's data center energy and water rating is aimed at addressing potential public discontent while enabling the region to build its own compute capacity. 

The EU needs more compute to support rapid AI development to enable it to reduce reliance on U.S. big techs. The regional bloc plans to increase its computing capacity over the next seven years. If data center power consumption in Europe is not managed well, this expansion could strain supply, deplete water resources, and increase carbon emissions. 

“Tripling our data center capacity cannot mean tripling the pressure on our grids, our water and our energy bills. That starts with transparency, rating large data centers depending on their impact on our energy system,” Executive Vice-President for clean, just, and competitive transition, Teresa Ribera said. 

In the U.K., an environmental group filed a planning statutory appeal in court to reverse approval of a hyperscale data center project on green belt land.  In U.S., the Elon Musk-led XAI has faced scrutiny over its AI infrastructure projects in the Memphis area. Lobby groups have raised air pollution concerns from the company’s upcoming Mississippi data center.

Increasingly, shareholders in tech companies are asking for data on conservation efforts and water usage in AI facilities ahead of annual meetings.

How the EU Data Center Rating Scheme Will Work

Like home appliances, the data center rating scheme will rank data centers based on a colored scale. An A or Green rating will represent the most efficient facility, while G or Red would stand for the least efficient. 

The scheme will encourage companies to adopt good practices by considering data center contributions to the grid. The Commission said some best practices could include reuse of waste heat and inclusion of capacity to generate clean energy. 

"Efficient, flexible, powered by additional clean energy and reusing waste heat, this is how data centers become an asset for the EU's energy transition," Ribera added.

With the  International Energy Agency placing the overall electricity demand for the AI sector at over 3% by 203, the European Commission considers it critical to understand the energy demands in data centers.

EU Data Center Rating Labels Expected in 2027

The European Commission said data center rating labels will be developed using data reported by companies and will be published in a regional database. The first set of labels is expected in 2027. 

The labels will display information about water and energy consumption in sites that generate 500 kW or more in compute capacity. Already, those sites report important metrics to the EU. The European Commission is also considering minimum performance standards for data centers.