A solar system is no- to low–maintenance once it is installed because it does not have any moving parts. Regular rainfall tends to help keep the panels free of dust, salt deposits, and other debris. Otherwise, periodic cleaning may be needed to make sure the panels are clear and able to capture as much sunlight as possible. Some installers offer maintenance services with the purchase of a solar array. Many also allow you to monitor how much electricity your system is producing online in real time, so any changes in normal production levels may help you detect problems. More FAQs on solar PV

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