

He’s not a psychopath; he’s psychotic. Those are very, very different.
Psychopathy and sociopathy are functionally identical; they’re personality disorders where a person largely lacks the capacity for empathy, and hence remorse. Being psychotic means that you’re experiencing delusions; you may be hearing voices, or having uncontrollable impulses to do things that would be out of character. His behavior, based on what he’s saying, is entirely delusional; he doesn’t even have internally consistent logic in his actions.
FWIW, I’m in the process of starting a grid-tied solar installation. Total cost, without batteries, will be about $70,000. That’s a 17kW system, that should produce an average of 30kWh/day in the winter.
If I had been doing this last year, it would have been sharply less; tariffs and the drive to kill solar has driven costs up, and the end of the solar tax credit on 31 December means that everyone that wants to do it is trying to do it now, which drives up labor costs.