Worst I've had over a day in the last few months on my home solar is about 25% of my maximum daily generation. It was one day in a very rainy week here in Brisbane Australia.
I did have one rainy day back in the middle of Winter that was 16% but that will end up being literally the worst day of the year.
I did have one rainy day back in the middle of Winter that was 16% but that will end up being literally the worst day of the year.