Solar energy plays a crucial role in today’s energy mix, especially when the sun is shining and solar panels are properly maintained. But many overlook that dirty solar panels lose efficiency, leading to lower energy output. So, what’s the best way to clean rooftop solar panels? Cleaning robots have become a go-to solution, maximizing performance while improving workplace safety. Here’s what you need to know.
Cleaning solar panels doesn’t have to be complicated. However, rooftop work requires strict safety measures. The DGUV Rule 101-605 outlines key workplace safety and structural requirements. In practice, cleaning robots combined with aerial lifts have proven to be the safest and most efficient solution. The major advantage? Workers typically don’t need to step onto the roof, as the robot is remotely controlled. To ensure a fast and safe cleaning process, several key factors should be considered beforehand.
When it comes to safely accessing the roof with cleaning equipment, ladders and aerial lifts are common choices. The best option depends on the size of the area to be cleaned, the building’s structure, and the roof’s condition.
Good to Know:
hyCLEANER designed its solar cleaning robots with a strong focus on optimal weight distribution and modularity. The solarROBOT compact, developed for small to mid-sized solar systems (540–21,500 sq. ft.), consists of six individual components, each weighing less than 22 lbs.
This makes the robot lightweight and easy to handle, allowing for effortless transport and setup. In fact, a OSHA-compliant ladder ascent is theoretically possible to bring the unit onto the cleaning surface.
Always ensure that the manufacturer’s weight limits are not exceeded. The total load on an aerial lift—including equipment, personnel, and supplies—must remain within its capacity at all times. One often-overlooked factor is water weight. A 65–100 ft. (20–30 m) filled hose can add significant weight, which must be factored into the lift’s maximum load.
Expert tip: For optimal weight distribution, route the hose directly over the crane or aerial lift. The video below provides practical examples of key considerations when using aerial lifts for solar panel cleaning.
Can Solar Panels Be Cleaned in Any Weather? No. Even if the photovoltaic system is powered down for cleaning, a thorough risk assessment is still required, as mandated by workplace safety regulations. Weather-related hazards must be carefully evaluated before starting. Cleaning should be postponed in cases of heavy rain, snowfall, or thunderstorms, as these conditions significantly increase the risk of accidents.
Cleaning solar panels on rooftops comes with unique challenges—even when using aerial lifts. Solar system operators should stay informed and trained on proper cleaning techniques or hire specialized professionals with the right qualifications. Expertise matters: Professional cleaners understand PV system regulations, safety protocols, and efficient cleaning methods. They also have industry connections and know how to handle specialized equipment properly. Most importantly, they can identify potential risks and apply necessary safety measures.
Our training video provides step-by-step guidance on using the solarROBOT compact, along with practical tips and best practices. If you have any questions, feel free to contact us—we’re happy to help!
Cleaning robots may only be operated and maintained by individuals 18 years and older who are physically and mentally fit for the task. They must receive proper training and demonstrate their competence to their employer before use.
Cleaning a solar system and risking an electric shock? That doesn’t have to be the case. Cleaning professionals working on rooftop solar panels, whether using aerial work platforms or ladders, must be equipped with the proper protective gear. This includes essential safety equipment such as helmets and harnesses. Electrical safety is just as important: Before cleaning, a thorough inspection ensures that all electrical connections are intact and the panels are free of damage.
Workers tasked with cleaning solar panels on rooftops, aerial lifts, or ladders must wear proper protective gear. This includes helmets, safety harnesses, and non-slip footwear to ensure their safety. Electrical safety is just as important—before starting, all electrical connections should be inspected, and the panels checked for any damage to prevent potential hazards.
Regular cleaning is essential to keep a solar system running efficiently and maximizing energy output. However, rooftop cleaning requires strict adherence to safety regulations.
For a safe and effective process, it’s crucial to rely on well-trained personnel, proper safety equipment, and the right tools. This ensures that the cleaning robot is transported securely onto the roof and can perform the job quickly and professionally.
This guide serves as a general reference and does not claim to be exhaustive. Regulations vary by country, so PV system owners and professional cleaning crews should familiarize themselves with local requirements before cleaning solar panels. Want to learn more about safe cleaning methods and our innovative solutions for solar maintenance? We’re happy to help!
