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Energy Bill [HL]

Perhaps the noble Lord can help me. I understand exactly where he is going on the protection of the investment but he is being incredibly coy about telling us what the scope of the possibility would be. He said that he conducted an inquiry some years ago. How many gigawatts or megawatts of electricity could there be in the UK? I am not wanting to pour cold water on this—I stumbled into that one. However, are we going to do something here that could, at the end of the day, be worth while or are we just kidding ourselves? Perhaps this is another technology that might be appropriate in countries or areas of the world where tectonic plates are crashing. In Iceland, that is self-evident but one does not get the feeling that there are too many serious earthquake areas in the UK where you are likely to access those kind of geothermal possibilities. Can the noble Lord be a little more specific about what he would regard as the likely output from a geothermal electricity industry?