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Facility energy & water

Turn IT load and its annual-average utilization, PUE, power price, and WUE into facility draw, annual MWh, annual energy cost, and annual water consumption for an AI data center.

ScenarioNVIDIA GB300 NVL72 · 56 active / 72 installed GPUs · 1 racks · 0.14 MW IT · $9M programguide defaults (as of 2026-09)Edit your project assumptions →

Facility energy & water

Nominal installed IT powerMWAnnual-average IT load% of nominalIndependent of productive utilization; use the electrical load study.PUEratioPower price$/kWhWUEL/kWh ITEvaporative sites: best ~0.3–0.7, typical ~1.8–1.9 · hyperscale fleet averages ~0.12–0.27 (AWS withdrawal, Microsoft FY25) · closed-loop dry ~0 · state withdrawal vs consumption

Average facility power0.16 MW

Annual energy1,360 MWh

Annual energy cost$108,799

Annual water0.5 M L

Annual energy uses nominal IT power × the average load you enter × energy-weighted PUE × 8,760. Site water uses IT energy × WUE. Cooling technology does not determine PUE; use plant curves and weather/load bins → Ch 15.1.

Worked decision — stated assumptions

All ledger inputs are assumed teaching values chosen to exercise this chapter’s method; they are not market quotes, OEM performance claims or operating records. Arithmetic uses the full entered precision.

Assumed inputs
Input	Value
Nominal installed IT power	10 MW
Annual-average IT load	60 % of nominal
PUE	1.2 ratio
Power price	0.08 $/kWh
WUE	0.4 L/kWh IT

Illustrative annual operating case: assume 10 MW nominal installed IT power, 60% annual-average load, energy-weighted PUE 1.20, electricity at $0.08/kWh and site-water WUE 0.40 L/kWh of IT energy. Average IT power is 6 MW; annual IT energy is 6 × 8,760 = 52,560 MWh. Facility energy is 63,072 MWh, costing $5,045,760. Site water is 52,560 × 1,000 × 0.40 = 21,024,000 litres.

Against an illustrative $5.2 million annual electricity allowance, this case passes with $154,240 remaining. The allowance crosses at 61.8% average load. Holding all other assumptions constant at 100% nominal operation raises electricity cost to $8,409,600 and fails that allowance. Productive utilization alone does not change either energy case; change the average-load assumption when the load study changes.

Guide derivation. Method and handoff: Chapter 15.1 — Efficiency Metrics: PUE, WUE, ERF, REF & the Post-PUE Metric Stack.

These are transparent screening estimates, not final designs, financial advice, or project approvals. Replace every default with current project data and have the responsible project authorities validate the result. You can save, share a permalink, or export to CSV; see the full calculator suite.