Data-center water-siting
Expansion · cooling-water demand vs. local supply for a proposed facility
Highest-value adjacency: a hyperscale facility is a town-scale water draw. This estimates a proposed data centre's cooling-water demand from its IT load and cooling design (Water Usage Effectiveness), then cross-references the same verified drought/reservoir record — e.g. a large evaporatively-cooled site near water-stressed Attica.
Cooling-water demand
Water risk
2,160 m³/day
≈ 788,400 m³/year · Evaporative / cooling towers · Attica (Athens metropolitan area)
Findings
- ~2,160 m³/day of evaporative cooling demand in a water-constrained area (Attica (Athens metropolitan area)) competes directly with municipal supply.
- Attica's reservoir system (Mornos, Evinos, Marathonas, Yliki) fell to ~520 million m³ — about half the 2022 level, ~2 years of supply. Hydrologists warn Attica (≈half of Greece's population) could face severe scarcity within ~4 years. (Search-level; verify on-page.)
- Lower-water cooling (air-cooled / dry, direct-to-chip / immersion) would cut this facility's water draw sharply — the standard mitigation for water-stressed siting.
Cited sources
- [1] Greece monthly briefing: Water Security of Greece under stress — China-CEE Institute, 2025-08-11 provisional
- [2] Data-center Water Usage Effectiveness (WUE) by cooling type; ~100 MW evaporative ≈ 2,000 m³/day — Industry reporting (EESI / dgtlinfra / MOST Policy) — representative, 2025 provisional
Disclaimer — DRAFT, prototype
Based on public drought/reservoir reporting and representative WUE cooling coefficients — not a facility mechanical design or an official water allocation. WUE varies widely by design and climate and must be confirmed per facility. A screening aid, not a guarantee of water availability or a substitute for engineering / the water authority (EYDAP / DEYA).