[Kraftwerk]

I am a renter, so no skin in the game , but I do remember, about 10 years ago, hearing someone say their system made excess energy and they SOLD it back to the grid for profit. Seemed too good to be true, instead of getting a bill they got a check (or credits?)

Other thing is if its sunny where you live AND windy you could have a few windmill-turbines also feeding the batteries.

I do have solar panel on my boat, which charges a battery, which runs the bilge-pump, it's a pretty happy equation. It also have USB charging capability so could charge a cell-phone or the running lights, both important. If I was building or buying a home, I certainly would incorporate a source of energy, who knows how reliable the grid really is ? The less reliant you are on it, the better.