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Who cleans solar panels?


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44 minutes ago, tomgates said:

I quit cleaning them several years ago. With occasional hard rains, no change in daily output.

 
It is reasonable to assume that solar panels can loose 15-25% of their efficiency if not cleaned properly. This literally means that they will generate 15-25% less electricity, which you now will have to source from the utility company at their price rates.
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I clean mine one per year in the Spring with a light scrub and rinse with soft water.  Once the rains start the dustiness drops and as noted a couple hard rains cleans them pretty good.  Biggest problem with mine is bird poop in the Spring.  That's mainly why I clean.

If you are doing a new install give careful consideration to providing for maintenance.

 

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In the dry / dusty time of the year, once every month or two;

Give the panels a thorough rinse with clean water in the cool part of the day, then squeegee or soft-cloth dry to avoid water spotting (less of an issue for those with water softeners).      Most gardeners / handyman types can and will handle this for you easily and inexpensively.

PM or email for any questions.

 

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