I think you are letting the conclusion you desire cloud your judgement.
UK has a greater range of energy mix than many, use more renewables than most and we pretty much lead the world in off-shore wind (I think China just overtook us).
The issue is almost wholly the rise in global gas prices (and most covid bounceback in demand); As of today, wholesale prices 400% higher than a year ago in Britain, what Europe generally buys is 550% (!!) higher than a year ago.
Unfortunately gas still provides 40% of our electricity generation, so there is little we can do in terms of the cost.
https://grid.iamkate.com/
Governments can of course offer varying degrees of support to mitigate the cost but thats a different question I think.