Reducing end-use energy consumption by action rather than equipment: turning lights off, lowering thermostats, driving less. The standard contrast is with efficiency, which improves the device; installing an efficient lamp is efficiency, switching it off when the room empties is conservation, and utility programs commonly pursue both together.
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Source United States Energy Information Administration Official Site
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1. United States Energy Information Administration Official Site
US Energy Information AdministrationUse of energy explained, Energy efficiency and conservationQuote, Use of energy explained, Energy efficiency and conservation
Installing energy-efficient lights is an efficiency measure, and turning lights off when not needed, either manually or with timers or motion sensor switches, is conservation.
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