Recent news suggests that the gov interferes with the privatised anyway. Water company - they often crop up but..........
It seems that solving the sewage problem would add £64 to everybody's water bill. Don't do it, We have a cost of living crisis.

That probably before the current one. The cost - they would probably borrow it. The gov will guarantee their loan. This seems to be a common approach that may be used. In fact it has been mentioned in relationship to "gas aid". They can help the companies concerned borrow in the same way or borrow it themselves. Liability is ours either way but one way the debt doesn't appear on the gov's books.
Nuke stations appear to be different. Loads of money needed so find backers to pay for it. They will want a return. I assume electricity costs out are considered. If we will pay that they will pay for it. I posted a link to one that appears to be intended 1/3 2/3 owned by EDF and Chinese company. Institution type investment might be used. It appears from an AlJ program that hedge funds are developing an interest in utilities. Related to water and that in some countries there are signs of it becoming a commodity. The funds see it as a steady return which is bound to increase over time - a useful part of their portfolio. Spread you bets in other words. Other utilities - pass.
Nuke stations - Toshiba dropped out yonks ago now. Not enough money in it. Are we prepared to pay a suitable amount now? One new one a year? How many years to build?
The supply side of gas in particular doesn't look to good really. They invest to produce more, get to a point when the price falls maybe with a surplus on the ammount they can supply - whoops. It's not that simple. OPEC and OPEC+ have screwed us up before. N Sea makes a lot of sense in regards to that but Shell, BP etc will want a profit. If we have enough we wont be buying from elsewhere any more ....................... why should they just sell it here at a reduced price? Or even take on the work really?

More passes but sounds a touch tricky to me.