On top of the $4k you also have to figure out how to get your power provider to agree to the change. For my solar system, i was lucky enough to get one of a few

On top of the $4k you also have to figure out how to get your power provider to agree to the change. For my solar system, i was lucky enough to get one of a few seats in my state before they were all taken. I highly doubt every energy provider is even prepared for this.