Microsoft FY2025 WUE across its fully owned and controlled datacenters operational for the full year
~0.27 L/kWhobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | Fully owned and controlled datacenters operational for the full fiscal year. Numerator: cooling and humidification water; not EU all-functions total input. The zero-evaporation next-generation design is a separate claim. |
| As of | FY2025 (2024-07-01–2025-06-30) |
| Source | Microsoft Datacenters, Measuring energy and water efficiency, FY25 table and methodology; fiscal period ended 30 June 2025. · FY25 global row, water numerator, full-year operational boundary and fiscal-year definition |
| Review | checking…review by 2027-03-05 · standard cadence |
| Recorded changes | last 2026-09-16 · 4 revisions tracked |
| Claim id | microsoft-fy2025-fleet-wue-next-gen-closed-loop |
Where the guide uses it
- 3.7 Water Availability, Sourcing & Climate-Driven Cooling Strategy (Siting Gate)
- 5.8 Heat Rejection: Chillers, Dry Coolers, Towers, Adiabatic & Economizers
- 15.1 Efficiency Metrics: PUE, WUE, ERF, REF & the Post-PUE Metric Stack
- 15.4 Water Stewardship
← Full numbers register — every date-stamped figure in the guide, with revision history.