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Data Center PUE & Electricity Cost Calculator

Convert IT load, PUE, utilization, and power price into facility demand and cost.
Annual electricity cost
$49,275,000
Facility load at full IT load
125
Annual electricity use
821,250

PUE measures facility overhead relative to IT energy; it does not measure useful compute output or total project economics.

IT equipment load is only part of a data center’s electricity demand. Power usage effectiveness adds cooling, power conversion, and facility overhead. This calculator converts IT megawatts through PUE and utilization into facility load, annual electricity consumption, and annual power cost.

Formula reviewed 2026-08-022 primary sourcesMethodology and disclosures →

How this data center pue & electricity cost calculator works

The calculator multiplies IT load by PUE to estimate total facility load, then applies average utilization and 8,760 hours per year. Electricity cost equals annual megawatt-hours multiplied by price per MWh.

Formula

Annual MWh = IT MW × PUE × utilization × 8,760

Demand charges, transmission, taxes, on-site generation, power contracts, seasonal PUE, water use, and grid constraints can change actual cost.

Primary specifications

Before you use the result

Assumptions

  • • PUE and utilization represent annual averages.
  • • Power price is an all-in scenario rate in dollars per MWh.
  • • The IT-load and PUE boundary use consistent measurement definitions.

Quick start

  1. 1. Enter credible operating IT load rather than only announced nameplate capacity.
  2. 2. Use a measured or scenario PUE and average load factor.
  3. 3. Stress power prices, curtailment, ramp timing, and contract structure.

Frequently asked questions

What does a PUE of 1.25 mean?

Total facility energy is modeled at 1.25 times IT-equipment energy, with 0.25 representing facility overhead.

Is lower PUE always better?

Lower facility overhead is generally more efficient, but PUE does not measure compute utilization, workload value, water use, or reliability.

How many hours are in the annual calculation?

The model uses 8,760 hours and applies the selected average utilization or load factor.

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