Depends on the cloud. Where I live I routinely get 50% generation on a "cloudy" day.
replyOn a rainy day that drops closer to 20%.
As an aside - cloudy days avoid a problem I have with shade. In winter, at 3:30pm, the sun goes behind a tree and my production plummets to near zero. If there's cloud cover the sunlight is far more dispersed and there's no "shade".
> On a rainy day that drops closer to 20%
replyAnd you’re still able to power your entire home? What if the rain lasts for a few days, which is pretty common in many places.
No, 20% is not sufficient to power the home. I'm still attached to the grid and use grid power even solar is too low.
replyWorst 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.
replyI 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.