Re: Answering a few points in the comments...
"Thanks to http://gridwatch.templar.co.uk/index.php
I can see that the wind is generating 26.38% of UK Power at the time of this posting. Coal is around 2%. "
Thanks to the same web site we can see that on Saturday there was almost no wind, yet they were able to ramp the coal output up to compensate.
We need 100% conventional backup available for when the ruinables aren't generating anything. This double supply is making all our electricity _much_ more expensive.