Wednesday, April 1, 2015
Solar Panels, Keep Them Clean
Where I live we have thousands of acres of pine forest, it's a crop grown for the paper industry. Every spring they produce a yellow pollen in great amounts, it leaves behind a yellow dusting on your cars, outdoor furniture, virtually everything outside.
I looked at the panels on my roof and sure enough I could see the pollen dust on them. So I got the scrub brush on the extension pole, a step ladder and the garden hose ready. Before the cleaning began I noted the amp output then immediately cleaned the panels and again noted the amp reading after cleaning. To my surprise there was an 11% increase in the amp output! Quite a gain for simply hosing and brushing the panels.
Truth is, solar panels are very sensitive devices, their precise alignment to the sun, free of the slightest shadows such as the hour that my satellite dish casts a small shadow on them and now dust accumulation has a bigger impact on output then many would think.
The panels on the roof that were cleaned.
(I have a very small window of direct sun because of all the trees around me so the panels are mounted in the best position to make the most of the available few hours of sun.)