asked the Secretary of State for Energy what is his estimate of the total generating capacity, in electricity production, of each primary fuel, recognising that some plants can be operated by more than one fuel.

The output capacity of the public electricity supply industry in the United Kingdom at the end of October 1974, indicating the main primary fuel used, was as follows:

asked the Secretary of State for Energy what is the maximum generating capacity of the public supply system.

Figures are regularly published in Energy Trends. The latest, published in the October issue, is for September and is 68,668 MW.