Where’s all this additional electricity going to come from?
Apart from encouraging the further development of wind and solar, you mean?
3 new nukes, at Sizewell, Wylfa, and Bradwell in addition to the one under construction at Hinkley Point. Always assuming the investors can be found. EDF is stretched right to its limit by building Hinckley, and international capital is hard to attract to the UK at the moment (no prizes for guessing why).
An interesting illustration is that we would need to cover 1% of the UK's land area in solar panels to meet all our projected energy needs, which they reckon will be up around 410GW from the current 370GW or so.
Since about 2.3% of the UK is already covered by buildings, if we just put solar panels on everyones' roof we could have it cracked easily.
