This one's a no-brainer. Whenever you buy anything expensive, it makes sense to take out insurance on it. In the case of most UK-based insurance companies, it's very easy to add your solar panels to your existing. However exciting/independent a DIY solar panel installation sounds, it is categorically a very bad idea. Unless you're an MCS-approved, professional solar panel installer and you do this f. Although a largely miserable and damp affair, the UK's regular rainfall does help to keep solar panels clean. Given the 35-40° tilt of most solar PV installations, all it takes is a bit of water a. Unfortunately, pigeons will try their damnedest to ruin your solar panels. To these birds, your expensive solar PV array is just a big, silicon nest for their feathery families. Pigeon. Don't get us wrong: trees are fine things, and we respect their leafy splendour. However, if you own solar panels, tall trees looming over the roof of your property are a problem. Not onl.