HC Deb 13 March 1969 vol 779 cc355-6W
Sir J. Eden

asked the Minister of Power what is the cost at 1969 prices of the installation and maintenance of electricity generating capacity between now and 1973–74 in excess of that which would be required exactly to meet a 17 per cent. margin of spare capacity.

Mr. Freeson

Any excess will vary from year to year and it would not be practicable, therefore, to estimate the capital cost, but as the hon. Member for Cirencester and Tewkesbury was told on 4th March [Vol. 779, c.83] any temporary imbalance should not significantly increase costs on revenue account.