It was a real birthday present for the earth yesterday that we saw the first day in 135 years when Britain wasn’t producing any electricity from coal. I think that is a pretty remarkable day, and it really does point to the future, which is a really low-carbon future, in which we are basically using renewables, smart meters, and a much more efficient system, which will be good for the economy, good for consumers, good for the climate, and incidentally good for the National Health Service.