Definition of cogeneration Cogeneration
/kowˈʤɛˈnɚejˈʃʌn/ - [kowjenereyshun] -
We found 3 definitions of cogeneration from 2 different sources.
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What does cogeneration mean?
Wiktionary 
- cogeneration (Noun)
The production of heat and/or power from the waste energy of an industrial process. - cogeneration (Noun)
The simultaneous or serial production of heat and electricity from the same source.
Wikipedia 
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Cogeneration (also combined heat and power, CHP) is the use of a heat engine or a power station to simultaneously generate both electricity and useful heat.
Conventional power plants emit the heat created as a byproduct of electricity generation into the environment through cooling towers, as flue gas, or by other means. Combined heat and power captures the byproduct heat for domestic or industrial heating purposes, either very close to the plant, or - especially in Scandinavia and eastern Europe - for distribution through pipes to heat local housing.
Byproduct heat at moderate temperatures (100 to 180°C) can also be used in absorption chillers for cooling. A plant producing electricity, heat and cold is sometimes called regeneration or more generally: polygene ration plant.
Cogeneration is a thermodynamically efficient use of fuel. In separate production of electricity some energy is lost as waste heat, but in cogeneration this energy performs useful work (see energy).
Overview.
Thermal power plants (including those that use fissile elements or burn coal, petroleum, or natural gas), and heat engines in general, do not convert all of their available energy into electricity. In most heat engines, a bit more than half is wasted as excess heat (see: Second law of thermodynamics). By capturing the excess heat, CHP uses heat that would be wasted in a conventional power plant, potentially reaching an efficiency of up to 70%, compared with at most 40% for the conventional plants. Th
