Energy and Climate Change and Environment, Food and Rural Affairs

I am grateful to the right hon. Gentleman for giving way a second time. To answer his question about the reserve storage of gas, it may well be motherhood and apple pie, but given the security issues involved, would it not be prudent and good sense to enshrine in law a statutory requirement to have a certain amount of days of reserve, as we have learned happens in France and Germany? This is not impossible; it is something that could be done very simply, and we should remember that we went down to about four days' worth of gas last year.