Data centers above ** MW were the most energy‑efficient in 2023, recording the lowest average power usage effectiveness (PUE). This was according to data reported under the European Union’s Energy Efficiency Directive (EED) which requires large facilities to submit energy performance metrics to a central EU database.
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European Commission. (July 1, 2025). Average weighted power usage effectiveness (PUE) of data centers in the European Union in 2023, by size [Graph]. In Statista. Retrieved May 07, 2026, from https://www.statista.com/statistics/1659994/average-data-center-pue-europe-size/
European Commission. "Average weighted power usage effectiveness (PUE) of data centers in the European Union in 2023, by size." Chart. July 1, 2025. Statista. Accessed May 07, 2026. https://www.statista.com/statistics/1659994/average-data-center-pue-europe-size/
European Commission. (2025). Average weighted power usage effectiveness (PUE) of data centers in the European Union in 2023, by size. Statista. Statista Inc.. Accessed: May 07, 2026. https://www.statista.com/statistics/1659994/average-data-center-pue-europe-size/
European Commission. "Average Weighted Power Usage Effectiveness (Pue) of Data Centers in The European Union in 2023, by Size." Statista, Statista Inc., 1 Jul 2025, https://www.statista.com/statistics/1659994/average-data-center-pue-europe-size/
European Commission, Average weighted power usage effectiveness (PUE) of data centers in the European Union in 2023, by size Statista, https://www.statista.com/statistics/1659994/average-data-center-pue-europe-size/ (last visited May 07, 2026)
Average weighted power usage effectiveness (PUE) of data centers in the European Union in 2023, by size [Graph], European Commission, July 1, 2025. [Online]. Available: https://www.statista.com/statistics/1659994/average-data-center-pue-europe-size/
