HC Deb 15 November 1974 vol 881 c281W
Mr. Gordon Wilson

asked the Secretary of State for Energy what is his estimate of the timescale required before the energy input associated with construction of nuclear generating stations is overtaken by the energy output, giving separate estimates for the different types of nuclear plant.

Mr. Eadie

Estimates of this kind depend very much on the conventions adopted and on the degree of success in tracing and quantifying all the energy inputs associated with the various plants and their fuel cycles. I have not made such estimates as the methodology is insufficiently advanced to enable nuclear systems to be meaningfully compared with one another in this way.