Up here in Northern California quite a few of us live off grid with just solar/batteries. What law says that a grid hookup is required? Is it at the county level?
(I know the answer is yes, because the answer to this kind of question is always yes...)
Brilliant.
Not where I live.
> a simple diesel or natural gas generator is a far cheaper method of getting power during an outage.
Not self-sustainable. The goal is completely self-contained energy generation. Dependence on externally sourced fuels fails the requirements.