Lt.Dan
Solar Wizard
I finally decided to get up on my roof and hose off my panels again. I live near an orchard, and they shake trees occasionally, which throws dust over everything! I typically try to hose down the panels every couple months, but I have been lacking and its been more like 6 months. They were filthy!
I will add, I think paying some guys to come out and "power clean" panels with the scrub brushes and pressure washers are a waste of money. I just saw 3 of my neighbors had a guy come out and do that to all of them. I spent 20 minutes on my roof with a hose and they look the same.
Results! Can you tell a difference? 6/14 yielded 60.9 kWh, and yesterday yielded 73.7 kWh. Thats a jump!!!
Here is PV 3 specifically, these are the 6x 390w panels that are flat mounted on my enclosed trailer (link in my sig). They were the worst because there was nowhere for the dirt to go since they are flat. It was just caked on, and very thick. Unfortunately after about 2pm, the house shades it, so production drops significantly.
I will add, I think paying some guys to come out and "power clean" panels with the scrub brushes and pressure washers are a waste of money. I just saw 3 of my neighbors had a guy come out and do that to all of them. I spent 20 minutes on my roof with a hose and they look the same.
Results! Can you tell a difference? 6/14 yielded 60.9 kWh, and yesterday yielded 73.7 kWh. Thats a jump!!!
Here is PV 3 specifically, these are the 6x 390w panels that are flat mounted on my enclosed trailer (link in my sig). They were the worst because there was nowhere for the dirt to go since they are flat. It was just caked on, and very thick. Unfortunately after about 2pm, the house shades it, so production drops significantly.