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Nuclear Reactors

Volume 884: debated on Tuesday 21 January 1975

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asked the Secretary of State for Energy in which year each of the advanced gas-cooled nuclear reactors is now expected to come on stream; and what was the originally predicted date at the time that construction of each reactor was officially authorised.

There have been problems with the programme of advanced gas-cooled reactors which have set the programme back appreciably. I am informed by the Chairman of the CEGB that the information requested by the hon. Member in respect of its stations is:

Original forecastCurrent forecast
Dungeness 'B'19711977
Hinkley Point 'B'19731975

asked the Secretary of State for Energy when he expects each of the proposed SGHW reactors to be functioning; and what proportion of the total nuclear power programme they will then provide, assuming completion of all the advanced gas-cooled reactors currently under construction by the date by which all the SGHWRs are themselves completed.

It is too early to give precise commissioning dates for individual steam generating heavy water reactors (SGHWRs). The total output capacity of Magnox stations in the United Kingdom is 4·1GW and the output capacity now envisaged for the advanced gas-cooled reactors at present under construction is about 6GW, which together with Atomic Energy Authority and British Nuclear Fuels Limited reactors gives a total of about 10·8GW. On the basis of these figures the initial 4·0GW SGHWR programme would therefore represent some 27 per cent. of the resulting total output capacity.