I’m a little wary of plug-in solar in the US. Some of the bills propose allowing 1200 watt panels which can overload wiring depending on what else is on the circuit and how in the wall wiring is run. Limiting plug-in panel wattage to, say, 400 watts might be necessary
I think the issue is that, if you have a circuit designed and protected for X, then put Y solar in, you can get a situation where X+Y is flowing down some of the wires. It’s more than they are rated for, but the breaker doesn’t see it.
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