If the BK doesn't come up on a google search, there is no other way to find a BK that would be cheaper than PACER. If the person has a common name, that will obviously be a problem. But, if you know in which jurisdiction they filed, you should be able to find the case and won't incur $10.00 worth of charges. It really won't be that expensive.
Hail larger than 1 inch in diameter (golf ball- or baseball-sized hail) can cause considerable damage to panels, although hail of this size also generally causes damage to most structures. To protect your solar panels, a solar panel protective cover is recommended during the times when hail is expected.
Solar panels don't generate any significant amount of heat themselves, and they certainly don't store electricity. They get hot because the sun heats them, and they can get significantly hotter than other materials around them because they are typically almost black, which means they absorb heat from the sun well.