I can help with this one...
Almost every solar panel built is made to sustain very hard hits. They actually shoot ball bearings at them with air canons to figure out how much abuse the can take…and they can take amazing impacts before the plastic coverings break.
I wouldn’t worry at all about installing a panel or 2 Steve.
We had 2 Uni-Solar panels on our last bus and they made it through some amazing hits from branches & such during the winter blizzards that hit up in Homer.
Michael & Millie