Responding to a 2025 survey, data center owners and operators reported an average annual power usage effectiveness (PUE) ratio of 1.54 at their largest data center. PUE is calculated by dividing the total power supplied to a facility by the power used to run IT equipment within the facility. A lower figure therefore indicates greater efficiency, as a smaller share of total power is being used to run secondary functions such as cooling.
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Uptime Institute. (July 28, 2025). Data center average annual power usage effectiveness (PUE) worldwide from 2007 to 2025 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1229367/data-center-average-annual-pue-worldwide/
Uptime Institute. "Data center average annual power usage effectiveness (PUE) worldwide from 2007 to 2025." Chart. July 28, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1229367/data-center-average-annual-pue-worldwide/
Uptime Institute. (2025). Data center average annual power usage effectiveness (PUE) worldwide from 2007 to 2025. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1229367/data-center-average-annual-pue-worldwide/
Uptime Institute. "Data Center Average Annual Power Usage Effectiveness (Pue) Worldwide from 2007 to 2025." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 28 Jul 2025, /statistics/1229367/data-center-average-annual-pue-worldwide/
Uptime Institute, Data center average annual power usage effectiveness (PUE) worldwide from 2007 to 2025 ÌÇÐÄÆƽâ°æ, /statistics/1229367/data-center-average-annual-pue-worldwide/ (last visited July 20, 2026)
Data center average annual power usage effectiveness (PUE) worldwide from 2007 to 2025 [Graph], Uptime Institute, July 28, 2025. [Online]. Available: /statistics/1229367/data-center-average-annual-pue-worldwide/
