I pay tribute to the right hon. Gentleman, whose activities in coalition contributed to a boom in some of the cheapest forms of renewable energy, including offshore wind. We are now able to generate over 30% of our energy supply from renewables, which is much cheaper than putting it on individual rooftops. He raises a really important point. As our energy system migrates to a much more decentralised, much more intelligent system—helped, I might add, by the roll-out of smart meters—there is real value in that micro-generation, and that is what I am hoping to support when I bring proposals to the House shortly.