Combined heat and power generation

This is how combined heat and power generation saves energy: based on 100 kilowatt-hours (kWh) of primary energy from a fuel, a typical CHP plant generates 62 kWh of heat and 28 kWh of electricity. With separate generation in a boiler and a thermal power plant, considerably more fuel is required to achieve the same result: (73 + 80 = 153 kWh). Therefore the combined heat and power generation (CHP) saves 35 per cent of the energy in comparison. Depending on the fuels used, CHP plants also produce around 29 per cent fewer CO2 emissions.