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A combined heat and power (CHP) unit is a plant for cogeneration, in which electricity and usable heat are generated simultaneously. By using the input energy twice, a CHP unit achieves a particularly high overall efficiency.
A combustion engine or a turbine drives a generator to produce electricity. The waste heat that is generated in the process is not discharged unused, but is used for heating, hot water or industrial processes. This principle significantly increases energy efficiency compared with the separate generation of electricity and heat.
In commerce and industry, a CHP unit is frequently used to:
In combination with an electricity storage system or energy storage system, the electricity generated can be used flexibly or buffered for later use. This makes it possible to reduce peak loads and optimise self-consumption.
A combined heat and power unit is a cogeneration plant that generates electricity and heat simultaneously and thereby achieves a high overall efficiency.
A CHP unit generates electricity by means of an engine or a turbine, while the waste heat that is produced is used for heating or industrial processes.
With a CHP unit, businesses can increase their energy efficiency, reduce energy costs and become more independent of the electricity market, as electricity and heat are generated on site.
A battery storage system can buffer surplus electricity from a CHP unit and make it available again later in order to reduce peak loads or market electricity flexibly.
A CHP unit is not automatically renewable. It can be operated with fossil fuels such as natural gas or with renewable energy sources such as biogas.