My Lords, surely no one is suggesting that these are alternatives, or if they are then that is not what any sensible assessment would allow. Of course the aim for a decarbonised world has to be sought through many forms. All that is being said is that to leave out one of the major areas of decarbonised electricity is asking for trouble, unless one can begin to assess the enormous costs of trying to fill it in in areas where it may not even be available.
The example of Germany is one that the noble Lord should perhaps bear in mind. The rumour is that, having tried to do without nuclear power and got down to its three remaining nuclear stations, there is strong talk that if it is to move into the new world that we are facing now, which has all sorts of implications for the future, a large chunk of reliable low-carbon nuclear capacity must be either retained or developed to add to all the other highly desirable things for net zero and all the other projects, including of course energy efficiency and a far greater use of every kilowatt of electricity for output, which is the secret of considerable improvement without too much electricity. If that is what is being argued, we are all for it, but nuclear electricity is an unavoidable part and to drop it seems a bit odd and very high-cost indeed.