@catsalad Good luck getting him off your keyboard.

@BalooUriza @pfriedma The thing that worries me is that, with solar plugged in, you now have say a 15 A circuit, with the appropriate breaker, and another source downstream of that. So you potentially have extra fault current that can be dumped in from somewhere there wouldn't normally be a source.

In other words, your circuit with wire sized for 15 A could now possibly source that plus whatever the solar is kicking in.

@BalooUriza @pfriedma The term to look for is "anti-islanding", which is a feature where the inverter detects that the grid is down and shuts off. Grid-tie inverters are required to do this, and should do it whether they're plugged into an outlet or hardwired into an electrical panel.

There are different schemes to detect this, usually they watch the voltage and frequency. You don't want it energizing a dead line, but you also don't want it to think someone else's generator is the 'grid'.