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Terms for Green Architecture, Building & Energy

This glossary includes more than 300 solar terms, as well as hundreds of additional sustainable design and construction terms.

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Kilowatt-Hour (kWh)

Definition 1: One thousand watts acting over a period of 1 hour. The kWh is a unit of energy. 1 kWh=3600 kJ.

Definition 2: A unit of energy equal to 1,000 watt-hours. The basic measure of electric energy generation or use. A 100-watt light bulb that is left on for 10 hours uses one kilowatt-hour.