§ Mr. Ovenden
asked the Secretary of State for Energy at what proportion of total capacity the United Kingdom power 298W station network is currently operating; and if he will give separate figures for oil-fired stations, coal-fired stations and dual-fired stations.
§ Mr. Eadie
The utilisation of the CEGB's system varies according to time of day and year. At any one time a proportion of plant will be unavailable for use through, for example, breakdown and maintenance. The latest figures for operating capacity relate to 10.00 hours on Wednesday 19th May 1976 at which time the system was operating at 50.4 per cent. of the total capacity. This was made up of:
Coal-fired plant 68.1 per cent. Oil-fired plant 15.2 per cent. Dual-fired plant (coal/oil and gas/oil) 3.5 per cent. Nuclear 9.4 per cent. Others (gas turbine, pumped storage, diesel and hydro) 3.8 per cent. For purposes of comparison, at the time of maximum peak demand in 1975–6 the system was operating at 72 per cent, of total capacity.
§ Mr. John Moore
asked the Secretary of State for Energy what was the net output, expressed in £ million, of the electricity supply industry as at the end of 1975.