16 Terms
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Energy efficiency
Industry: Energy
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Energy efficiency
Horsepower (hp)
Energy; Energy efficiency
A unit of rate of operation. Electrical hp: a measure of time rate of mechanical energy output; usually applied to electric motors as the maximum output; 1 electrical hp is equal to 0.746 kilowatts ...
Peak watt
Energy; Energy efficiency
A unit used to rate the performance of a solar photovoltaic (PV) cells, modules, or arrays; the maximum nominal output of a PV device, in Watts (Wp) under standardised test conditions, usually 1000 ...
Long tonne
Energy; Energy efficiency
A unit that equals 20 long hundredweight or 2,240 pounds. Used mainly in England.
Langley
Energy; Energy efficiency
A unit or measure of solar radiation; 1 calorie per square centimetre or 3.69 Btu per square foot.
Kilowatt-hour
Energy; Energy efficiency
A unit or measure of electricity supply or consumption of 1,000 Watts over the period of one hour; equivalent to 3,412 Btu.
Head
Energy; Energy efficiency
A unit of pressure for a fluid, commonly used in water pumping and hydro power to express height a pump must lift water, or the distance water falls. Total head accounts for friction head losses, ...
Pound per square inch absolute (PSIA)
Energy; Energy efficiency
A unit of pressure (hydraulic (liquid) or pneumatic (gas)) that does not include atmospheric pressure.
