So there is going to be this huge increase in electrification. Excellent. But has anybody seen in the small print any details of where all the electricity needed to run this expanded system is going to come from? For the past few years the media has been full of scare stories about energy gaps between what the current power stations (largely old nuclear coming to the end of its life and dirty coal falling foul of new emissions regulations) can provide and what we need to keep the lights burning. We're struggling to build enough renewable energy, and the nuclear programme is way behind schedule. And now another huge source of electricity demand to power large sections of the railway. Is this another example of joined-up thinking?