We charge by the solar panel.
$7.00 per panel on top of the first floor roof.
$12.00 per panel on top of the second floor roof.
Does cleaning solar panels make a difference?
Solar panels are generally self cleaning, but in particularly dry areas (like Colorado) or where paneltilt is minimal, dust and other substances such as bird droppings can build up over time and impact on the amount electricity generated by a module. Grime and bird poop doesn't need to cover an entire panel to have an effect.
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