Solar power, we could, DB. Sadly or fortunately just about two tenths of a trillionth of the Sun's power actually reaches the Earth, but it's still about 1.4kW/square metre at the equator on a fine day. Say 0.8kW/sqm at UK's latitude. But of course, most of it is absorbed by the clouds, dust in the atmosphere etc. etc.

Say we typically get a tenth of that, 80W/sqm. If we can get 100% conversion that's only 500 metres square for 20MW. But conversion is much lower, figures anyone?

We do really need some good, efficient