@HarebrightCedarmoon
Just nationalise it. It's absolutely ridiculous that there was ever allowed to be a market for something as basic as gas, electricity and water and that companies were allowed to make profit on it. Energy is a complete rip off in this country.
I agree that basic utilities should be nationalised and the price only that needed to cover the costs, but I think it's also the case that our prices are still cheaper than a lot of other countries.
Someone up thread mentioned Spain as having much higher prices than the UK and I've also heard that electricity is very expensive in Turkey and those are both countries where the general cost of living and wages are lower than the UK. It would be interesting to see a list of prices per kWh for different countries for comparison.
On the matter of heating overnight, if you have your thermostat set at 12/14 C, the heating will only actually come on in the depths of winter, unless your insulation is non existent, so it's not going to cost much most of the time, and you should do what you can to improve your insulation - there are often grants available to get it done free or quite cheaply, certainly worth paying for and there's also the environmental, as well as the cost benefit, because that's what a lot of this is about.
We need to reduce our usage for the environment. It's simply not enough for more well off people to use loads of gas and electricity heating their house more than necessary because they can afford to.