"why not rev up ready for it"
Because supply capacity is not the only problem. A few days ago at tea time, smoke started pouring from a street manhole in our area. It turned out that the combination of an overload and very hot weather had caused the insulation of the final distribution cable to melt and the cable had shorted, blowing the substation fuse. Nobody had any power for almost four hours while they fixed it. I spoke to the repair crew and was told that the cable was 'fairly new' (1980s vintage). So there's going to be a huge amount of upgrading needed all over the entire country if we move exclusively to electricty as an energy source.
Biting the hand that feeds IT
