Your wasting your time. In one ear out the other and every reply is 5 paragraphs long to make it look like he knows what he talking about (seemingly on every subject) without referencing anything whatsoever
You don't offer any detail why anything is wrong, just typing a one liner saying "that's wrong" without any explanation or back up to your comments, which doesn't make it so. At least I'm trying to explain it.
You offered France as an example of how we should be like them, but they planned for all of this (any scenario) decades ago, so have a lot more tools at their disposal. We do need to be more like them though, and plan for the future/ energy independence, but this can't be done instantly. I expect most party manifesto's will be highlighting this need for energy independence (largely from green sources), it's too late to have an impact now, but should be better for the future.
These are all widely known facts, which shouldn't need references (don't want to make posts longer than they already are):
We rely heavily on gas (obviously for 100% of gas appliances, but it supplies ~40% of our electric too)
We don't own/ provide much of our own gas (half comes from the North Sea, but a 1/3rd of that is from Norway)
As we don't have much of our own gas, we can't set the price on gas, the wider market does that
We have little nuclear, what we're adding is way over budget, and should have been installed decades ago if we wanted to be self reliant
France has loads of nuclear, which it installed years ago, relatively cheaply compared to us. The main reason for this was to go self reliant (good move)
Nuclear is extremely expensive in the UK, compared to pretty much every other generation method, it's still a good source mind, to cover demand when wind/ solar drop, but biomass is cheaper.
Our rail network is behind the times, for our supposed "level", and extremely expensive for passengers. We all know how bad the roads are.
You can't nationalise something, without buying out the private company that currently owns it (this is theft), that is obviously going to be expensive (and need to be paid for by the tax payer)