I don't run any solar panels on my house, nor am I involved in the industry, but I can say we get insane hail here sometimes. Maybe like once a year, there's a day where out of the blue golf-ball to baseball sized hail shows up. It's not usually widespread, so maybe you get lucky and it doesn't fall where you are. But it sure is a possibility.

It doesn't seem to be stopping developers from putting in solar farms.