I always wonder about all the holes in your roof that need to happen when the panels are installed. Do they ever leak?
I have neighbors who had a small solar panel installation installed. No RFI except during late night hours, and I'm not sure if it's the panels, or their large TV. It started after the panels were installed, but no noise during the day when panels are supposed to be blasting HF with noise. It stops early morning, so for the time being it's an irritant but not debilitating. 30-31 meters has a few frequencies affected.
Still, not happy that this is the new trend. More RFI, everywhere. Sucks.