Solar Flare Armageddon

[malahini]

"How do I safely disconnect from the grid?"

I don't know if it's part of the building code or not, but most of the houses in my neighborhood have a main cutoff switch.  Our place has two, an original one at the point the HELCO line connects to the house, and another that the electrician put in this year as part of the generator transfer switch in the garage.

Yes, I have the main breaker on the meter, and another shutdown switch for the entire solar, but power can still bleed through and fry the inverter which is what I'm worried about.