I have a number of friends who have solar arrays on their roofs. Nne of them is very happy. Some of them try to make themselves feel better by telling themselves stories how in the future this will pay off. Except, it does not. Those systems are expensive and they don’t even carry the full costs as the counterbalancing cost is borne by the community. People need to get burned to learn. But they will learn. Some through rational analysis – some by scars on their backs.
People who took out large loans say the thousands of pounds in savings they were promised have not materialised.