I have drawings and plans and submitted for permit but in order to get permit need contractor/electrician.
From county
“However, an owner must utilize a licensed electrical contractor to effectuate the wiring of the solar panels, including any interconnection to the customer’s residential electrical wiring. The limitations of this exemption shall be expressly stated in the building permit approved and issued by the permitting agency for such project”
Not sure if off grid solution is feasible. We have plug in EV so use ~70 kWh a day or more.