One big downside of semi-flexible panels are how susceptible they are to damage from hail. One big storm can kill 40-50% of their efficiency. Here’s some test r

One big downside of semi-flexible panels are how susceptible they are to damage from hail. One big storm can kill 40-50% of their efficiency. Here’s some test results: https://www.energy.gov/sites/prod/files/2014/01/f7/pvmrw13_ps2_westpak_brown.pdf https://www.energy.gov/sites/prod/files/2014/01/f7/pvmrw13_p...