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EnvironmentUp to date · Jan 15, 2026

Water Footprint (Energy)

The volume of water consumed per unit of electricity generated. Coal and nuclear use 400-700 gallons per MWh for cooling; solar PV uses near-zero water during operation.

Why It Matters

In drought-prone regions, water consumption is a critical factor in energy planning. Solar and wind are dramatically more water-efficient than thermal power plants.

Related Terms

Grid Emissions Factor

The amount of CO2 emitted per kWh of electricity generated by the local grid, varying by region and time of day based on the generation mix. Ranges from 0.1 lb/kWh (hydro-heavy) to 1.8 lb/kWh (coal-heavy).

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