HC Deb 29 March 1982 vol 21 c24W
Mr. Hooley

asked the Secretary of State for Energy what is the approximate total quantity of waste heat dispersed annually from the power stations in England and Wales expressed in terms of coal equivalent, oil equivalent or cubic feet of gas.

Mr. Mellor

In 1980–81, CEGB power stations, including nuclear stations, supplied 211.5 TWh of electrical energy from a total fuel consumption equivalent to 97.6 million tonnes of coal. The energy dispersed is equivalent to about 67 million tonnes of coal. About 10 per cent. of total fuel is dispersed as chimney emissions. Somewhat less than 60 per cent. is dispersed in cooling water as low grade heat at a few degrees above ambient temperature.