Thanks to Rod for a very sensible comment – I would just comment that nuclear submarines are subject to very different regulatory arrangements from commercial nuclear power plants, so they can perhaps do things that would not be permitted on dry land!
A comment from David Ward....on the claverton site...you can sign up to receive / and make any comments....
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An Update:
John Morris’s presentation (Reference 2 above) is now available from http://www.nuclearinst-cass.com/documents.htm
French nuclear units have actually been load following and providing frequency control since the early 1980′s, when their percentage of nuclear already exceeded 50%. A good paper summarising their early experience is “The adaptation of nuclear reactors to the needs of networks” , by G B Giesdon, C Martin, & C Miossec, (In French),in Revue de l’Energie No 372, March 1985, [I think not available via internet].
There is now a public paper on the German’s use of nuclear to balance wind variations – “Load cycling capabilities of German Nuclear Power Plants”, by Holger Ludwig, Tatiana Salnikova, Andrew Stockman and Ulrich Waas, in International Journal for Nuclear Power, Volume 55 (2010), Issue 8/9 August/September [available from http://www.vgb.org/en/load_cycling_capabilities_npp.html
Regards
David Ward