WLS-7 Solar Panel Cleaning Robot for Efficient PV Panel Maintenance

The solar panel cleaning robot is designed for photovoltaic power stations that require efficient, consistent, and safer panel maintenance. As solar farms expand in size, manual cleaning can involve considerable labor, repeated movement across large arrays, and difficult working conditions. Automated cleaning provides an alternative by allowing operators to control the cleaning process remotely while the robot moves directly across the panel surface.

WANLV SUNNY developed the WLS-7 for utility-scale solar farms, commercial photovoltaic installations, and remote PV stations where conventional cleaning tools may be less practical. Its combination of remote operation, all-directional movement, rotating brush cleaning, and edge protection helps simplify routine photovoltaic maintenance.

Automated Cleaning for Large PV Installations

Large solar arrays can contain thousands of panels exposed to dust, sand, pollen, bird droppings, and other contaminants. Removing this buildup regularly helps maintain a clean panel surface and supports consistent photovoltaic operation. The WLS-7 can clean up to 1.2 MW of PV panels per day, providing a higher-throughput approach for large-scale maintenance.

The robot uses a wireless remote control with a range of up to 150 meters. Operators can guide its movement without continuously walking across the panel array, reducing repetitive manual work and making cleaning easier to organize across extensive photovoltaic sites.

360° Mobility and Wide Cleaning Coverage

A key feature of this PV panel cleaning robot is its all-directional mobility. The robot can move across photovoltaic panels in different directions, allowing operators to adjust its position according to the panel layout and cleaning area.

Its 1200 mm cleaning width provides broad surface coverage during operation. Combined with a travel speed of up to 22 m/min, the configuration is intended to reduce unnecessary passes and improve cleaning efficiency across large panel surfaces.

Dual Cleaning Modes for Different Conditions

Solar panels do not always require the same cleaning method. Loose dust and dry particles can often be removed through dry brushing, while adhered contamination may benefit from water-assisted cleaning. The WLS-7 supports both dry brushing and water washing, giving operators greater flexibility according to surface conditions.

Water spray nozzles are integrated into the roller brush, allowing water to be introduced directly during wet cleaning. This design helps combine brushing and water application in one operation rather than requiring separate cleaning equipment.

Intelligent Protection for Panel Edges

Safety is particularly important when a cleaning robot operates directly on elevated photovoltaic panels. The WLS-7 incorporates anti-drop ultrasonic sensors to detect panel edges and help prevent the robot from moving beyond the available surface.

Overload protection provides an additional layer of operational safety. Together with remote control, edge detection, and controlled movement, these features are intended to support more reliable robotic cleaning across photovoltaic arrays.

Compact Design for Easier Deployment

Although designed for large-scale PV maintenance, the robot weighs approximately 30 kg excluding the batteries and measures 1300 × 1000 × 350 mm. Its relatively compact structure makes transportation and deployment more manageable between different sections of a solar installation.

The robot operates at 24V and uses two 24V lithium batteries, providing up to five hours of working time. This battery-powered configuration supports mobile operation without requiring a fixed power connection during cleaning.

Technical Specifications

Built for Solar Farm Maintenance

The solar panel cleaning robot is particularly suitable for utility-scale solar farms where cleaning efficiency, labor requirements, and operational safety need to be considered together. It can also be used for commercial rooftop solar systems and remote photovoltaic stations where conventional manual cleaning may be difficult to organize.

By replacing repeated manual brushing with remote-controlled robotic movement, the WLS-7 can help maintenance teams streamline routine cleaning operations. Its dry and water-washing capabilities also allow the cleaning method to be adapted to different levels of surface contamination.

Why Choose WANLV SUNNY

WANLV SUNNY focuses on photovoltaic cleaning equipment designed around practical maintenance requirements. The WLS-7 combines automated movement, wide cleaning coverage, rotary brush technology, water-assisted operation, and intelligent edge protection in one portable cleaning solution.

For solar farm owners, photovoltaic maintenance contractors, and operators of large PV stations, the right cleaning equipment can make routine maintenance easier to schedule and manage. With its remote operation and broad cleaning width, the WLS-7 provides a practical approach to maintaining cleaner photovoltaic surfaces while reducing dependence on repetitive manual cleaning work.