Rationed electricity might also come in the form of a universal basic entitlement, followed by market price for higher usage. One assumes under such a system that the state would own and operate energy production and that they would, for instance, increase the ration over time, leaving the remaining needed capacity to be fulfilled by the market.

Honestly, pricing based on the cost of financing and operation isn't a terrible idea.

Sure much you will end up with more energy consumed. If it’s a free ration, almost everyone will consume all that they are given up to the limit.

Under the current system, when energy becomes hard to produce or more people need it, rising prices means people will reduce. So pricing for cost of financing, sure, but it might be a higher cost because people will consume more.