Less than 0 05 percent efficiency is lost on average.
How much to clean solar panels.
As noted above the national average cost to clean solar panels is 133 which can vary by region and by factors such as accessibility and number of solar panels.
For a homeowner that adds up to saving about 20 a year by cleaning their solar panels halfway through the summer.
Depending on factors such as roof slant home height and system size companies charge between 3 and 10 per panel.
Homeowners spend an average of 150 to have their solar panels cleaned.
Get fair costs for your specific project requirements.
Some charge a flat rate within a range of 150 to 350.
The cost to clean solar panels starts at 22 21 28 02 per panel but can vary significantly with site conditions and options.