Investment in non-fossil fuels is exactly what was needed to make them cheaper that fossil, and in many cases they already are.

This such nonsense. Green tariffs (where 100% of electricity is from renewable sources, and sometimes a bit of your gas is biogas) are essentially the same price as non-green tariffs in the UK.

And what about in Kazakhstan? Primary source of energy is from coal. Should we let them freeze because they aren't as fortunate as you to live in the UK?

I don't see how that follows from anything I said.