do you follow progress of grid scale storage batteries? Energy can be stored pretty cheaply with current technology. It's just that we have existing gas fired power stations so we use them instead of investing in storage batteries. Still, the prediction is solar panels + storage batteries. Very predictable in theory.
If you are right, it would be a good thing. I have completely changed my mind about wind. It used to be very expensive and now it isn't. They sell for about 5 pence a kilowatt hour. Gas is now far more expensive than that and will likely remain so for the longer term now we don't have the Russian stuff.
I am a bit sceptical that the battery storage at scale would be cheap enough to tide us over the flat calm days. I don't see it, but I am never unwilling to change my mind if I can see I was wrong.
Of course - all of our attempts to reduce carbon emissions are like peeing into a force ten gale while China built last year more coal fired power plant than our entire generating capacity. Not only that; they are building them all over Africa.
The UK emits 1% of the world's co2 emissions. China emits about 35% on its own.