Illustrative PUE comparison: a well-designed warm-water DLC facility can operate around 1.1, while typical air-cooled halls may be around 1.3–1.5 or higher; this is not an inherent liquid-versus-air performance boundary
~1.1 vs 1.3-1.5+derived
| Value kind | derived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method. |
|---|---|
| Scope | Treat the figures as illustrative facility benchmarks, not technology-wide ranges. Climate, economization, electrical design, utilization, and operating discipline can let air-cooled facilities reach PUE at or below 1.1. |
| As of | 2025 |
| Source | Uptime Intelligence, “Is this air cooling’s last gasp?” · Opening paragraphs, May 20, 2024 |
| Review | checking…review by 2026-11-03 · standard cadence |
| Recorded changes | last 2026-07-14 · 2 revisions tracked |
| Claim id | pue-well-designed-warm-water-dlc-plant-vs-air |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.