Ok I think it has something to do with all the collapsing energy companies. There is a channel 4 documentary on it.

So a few years ago the government decided that there were too few energy companies and they were too big so smaller companies were encouraged to start up. Most of these companies were not viable and the minute the gas prices went up post Covid they all went bust. Now as you know if one company goes bust another has to take its place and they get that custom which sounds good but they then have to buy additional energy to cover the new customers which they often have to pay for at an inflated price.

The rise in gas prices has made energy more expensive but it's a policy failure which is making it much harder for British consumers and means we are still paying high prices despite the wholesale price going down