(forgot to insert quote -- this is in reply to
@Laughing )
Disagree -- those solar panels are almost guaranteed to be grid-intertied, meaning they are connected to the grid and run the meter backwards when it's sunny.
Literal "off-grid" electrical system means no meter, and a battery bank to store the energy. Battery bank requires maintenance and also a careful, electricity-minimized lifestyle, by which I mean: unless they had a huge photovoltaic array (bigger than what I see on the roof), no electric heat, no electric range, no electric water heater.*
Does anyone recall from the zillow tour whether the range was electric or gas?
*based on my personal current and past experience living literally off-grid.