Sunday, August 12, 2018

Solar PV System Cleaning

It's the middle of summer. Time for the annual panel cleaning. I usually clean the solar panels in late July, early August. The winter rains keep them reasonably clean for the other half of the year, but by the middle of the summer enough dust, dirt, and gunk has baked on the panels that they can use some love. Cleaned panel on the left, dirty panel on the right.

I wash the panels with a hose, wipe them off with a rag, and finally wash off the remaining dirt.

It's getting pretty hot up here in late morning, so I should get back to work. The result is below. If you look closely, you can see that the two panels in the top left corner have some gunk left near the top edge, since I couldn't safely reach that corner with the rag.

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