Hey everyone! I've noticed my solar panels aren't performing as well as they used to. After some research, I learned that dirty panels can really hurt efficiency, especially with dust and grime. Studies say that things like bird droppings and pollution can cut output by 10-25%, which means a 5 kW system could potentially lose around $120-$140 each year just from being dirty. I've read that it's good to clean them every 6-8 weeks, especially in dusty spots, using only water and a soft cloth. I'd also love to know if anyone has tried using DIY rainwater systems for auto-cleaning. What has been your experience?
2 Answers
If you really want the best performance, hiring a professional might be a good idea. They can ensure it's done right without risking damage. Some folks just go for the easy route and let the rain do the work for them, which can be effective too! Just keep an eye on how clean the panels look after rain.
Don't forget though, rain isn't always enough. Depending on where you live, you might find that dust still builds up pretty quickly. Regular cleaning can save you some serious cash in the long run! And if you're not comfortable climbing up to the roof, those pro cleaners really can help.