annual free-cooling hours in a Nordic climate; PUE as low as ~1.09
~7,000-8,000+ hrobserved
| 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 | Regional screening figure with the <10 °C average-annual-temperature condition, not a site design basis — Chapter 5.8 runs the site’s climate bins; operator disclosures (Google Hamina 1.09 TTM 2024) are the PUE evidence. |
| As of | 2026-05-13 |
| Source | w.media, Just chill: cooling innovations in Nordic data centers setting new sustainability standards (Conor McNevin, 13 May 2026): average annual temperatures below 10 °C providing up to 8,000 hours of free-air cooling each year, enabling facility-level PUE as low as 1.09; the article attributes the figures to no primary dataset. |
| Review | checking…review by 2027-05-13 · standard cadence |
| Recorded changes | last 2026-09-16 · 3 revisions tracked |
| Claim id | annual-free-cooling-hours-in-a-nordic-climate |
Where the guide uses it
- 3.1 Site Selection Strategy & the Reordered Criteria Hierarchy
- 3.7 Water Availability, Sourcing & Climate-Driven Cooling Strategy (Siting Gate)
← Full numbers register — every date-stamped figure in the guide, with revision history.