I've been wondering...Do solar flares have any negative or positive effects on solar panels?
The short answer is no, solar flares will have no effect on solar panels.
The longer answer is not that much different. Here is what we do know: a solar storm can reduce solar panel performance on a satellite that is orbiting earth by 3% to 5% in a day. Given that such solar storms are very rare and that satellites are way out in space, closer to the sun, the effect of a solar flare on a terrestrial panel (like on your roof) is between, none and tiny. The danger of the panel being damaged by wind, rain, snow, a tree branch, an errant ball is far greater than the danger of solar flares.
I hope this helps,
About Harold Simansky
Harold Simansky is one of the cofounders of 360Chestnut. Before that he was involved in the creation of Green Guild of MA, LLC, a full-service energy audit and home weatherization company that has helped over 1,000 Massachusetts home owners make their homes more energy efficient. Earlier, Harold was the developer of one of the first green, LEED-certified residential buildings in the Boston-area. Harold also has experience in the world of finance and as a consultant with Bain & Company. He is a graduate of the MIT Sloan School of Management and Brandeis University.