US Patent 11955927 Photovoltaic panel cleaning system

A panel cleaning system is provided which includes an inflatable wiper and a nozzle. In one aspect, the panel cleaning system includes pressurized air, linear actuators, and a panel-cleaning inflatable wiper wherein the pressurized air and the panel-cleaning wiper are configured to clean PV panels. A further aspect includes an inflatable wiper, a heater configured to heat pressurized air before the air flows out of nozzles and multiple air-driven pistons.