The city I was referring to has a population density half that of Copenhagen. Much of its energy is also supplied by power plants out in the suburbs rather than

The city I was referring to has a population density half that of Copenhagen. Much of its energy is also supplied by power plants out in the suburbs rather than being closely sited, so it would likely need to start with the least economical places. The main city also hasn't recovered terribly well from the COVID lockdowns and boom of remote work keeping a lot of computers away. It wouldn't be impossible to do, but they would need someone else to help fund it.