A term used to describe solar thermal, central receiver, power systems, where an array of reflectors focus sunlight onto a central receiver and absorber mounted on a tower.
The ratio of power produced by a wind energy conversion device to the power in a reference area of the free windstream.
The process of modifying the characteristics of electrical power (for e.g., inverting dc to AC).
The ratio of actual power being used in a circuit, expressed in watts or kilowatts, to the power that is apparently being drawn from a power source, expressed in volt-amperes or kilovolt-amperes.
The mechanical power required to compress polytropically and to deliver, through the specified range of pressures, the gas delivered by the compressor.
An electrical conductor/cable that carries electricity from a generator to other locations for distribution.
A built in mechanical device to recover a portion of the power consumed by a constant speed centrifugal compressor when operating at reduced capacity or reduced pressure rise, or both.