Since solar panels have little to no moving parts, the maintenance costs for these systems remains relatively low.
Solar panels are exposed to dirt, debris, and pollution. For maximum efficiency, most manufacturers recommend that your PV array be cleaned about every six months. Cleaning can be done either by you, Hilton Head Solar, or by a specialist window cleaning company, which offer this service. We recommend cleaning your solar panels every 12 to 24 months, minimum. Depending on the accessibility and condition of the panels will depend on the cost for cleaning. Residential cleaning can average $75 to $350 per cleaning, depending on the size of the system.