51/52 ain't bad. It's a benefit to still being connected to the grid. Though I'm sure you'll find "service fees and taxes" eating up a majority of the power bi

51/52 ain't bad. It's a benefit to still being connected to the grid. Though I'm sure you'll find "service fees and taxes" eating up a majority of the power bill you thought you were cutting (e.g. my natural gas bill costs $20 monthly to run @ 0 usage, regardless of only using it for emergency heat for the furnace). FWIW, Tesla's (crude) Powerwall calculator suggests 3 powerwalls would account for an instance of this with 100% power generation via solar (7 + days backup, it says). Of course I'd hate to see that installation invoice, though.