Restore up to 30% of performance with our reverse osmosis cleaning method. Chemical-free, streak-free, and risk-free.
Your solar panels are constantly exposed to the elements, dust, bird droppings, and pollen. Over time, these deposits form an opaque layer that reduces the absorption of sunlight and causes your electricity production to drop, sometimes by as much as 20 to 30%.
SDC Ecogroup offers a professional photovoltaic panel cleaning service using reverse osmosis water, the only method that guarantees a perfect, residue-free clean without risk to your equipment. Thanks to our battery-powered, self-contained machine and our telescopic pole system, we can work on all types of roofs without scaffolding in most cases.
95% of our customers consume all of their own solar-generated electricity. Regular cleaning of your panels is the simplest and most cost-effective way to maintain this level of performance. Our VCA-certified teams serve customers throughout Belgium.
Dust, pollution, spring pollen, and bird droppings—each deposit reduces the active surface area of your panels. Studies show that a dirty panel can lose between20% and 30% of its annual output.
For a 20-panel system, a 20% increase in efficiency translates toseveral hundred euros in annual savingson your energy bill. Professional cleaning pays for itself within the first year.
95% of our customers use only the solar power they generate themselves.This figure is only possible thanks to regular maintenance. Our VCA-certified teams tailor each service call to the specific type of panel.
Reverse-osmosis water is water purified through reverse osmosis, a process that removes 99% of dissolved minerals, salts, and impurities. The result is ultra-pure water that dries without leaving any limescale residue on your panels. This is the method recommended by solar panel manufacturers to ensure optimal performance.
Unlike cleaning with tap water or household cleaners, reverse-osmosis water leaves no residue after drying. Your panels regain their perfect clarity, maximizing solar absorption.
Criterion
Reverse-osmosis water (SDC)
Standard cleaning
Lime scale
None
Yes
Chemicals
None
Sometimes
Risk of scratches
Very low
Moderate
Impact on performance
Optimal
Variable
Environmentally friendly
Yes
No
At SDC Ecogroup, every job is performed using state-of-the-art equipment specifically designed for cleaning solar panels.No improvisation, no risks— our equipment guarantees optimal results without posing any danger to your systems.
Our cleaning machine is fully battery-powered. Quiet, emission-free, and requiring no on-site electrical connection, it can be used anywhere, even in hard-to-reach areas.
Our telescoping pole system allows our technicians to clean your panelsfrom the ground or from the gutterin most cases. No risk to your roof, and service is lightning-fast.
Our service vehicle is fully equipped to respond immediately on-site. With a large capacity for reverse-osmosis water, VCA-certified safety equipment, and a full set of tools, we arrive ready to go.
At SDC Ecogroup, every job is performed using state-of-the-art equipment specifically designed for cleaning solar panels.No improvisation, no risks— our equipment guarantees optimal results without posing any danger to your systems.
Every SDC Ecogroup service delivers visible and measurable results. Our clients notice an immediate difference after cleaning with reverse-osmosis water—sparkling panels, restored production, and a facility that regains its full value.
Regular cleaning is key to maintaining your system’s optimal performance. Here are our recommendations tailored to the Belgian climate.
In Belgium, professional cleaningonce or twice a year is sufficient in most cases. Depending on your environment (agricultural, industrial, or wooded areas), more frequent cleaning may be necessary to maintain up to 30% additional yield.
After winter, your panels will have accumulated moss, lichen, and other debris. Cleaning them inMarch or April prepares your system for the sunniest months of the year—when every percentage point of efficiency counts the most.
InSeptember and October, remove bird droppings, pollen, and summer debris before the weather turns bad. Your panels will start the winter clean and performing at their best, even in low light.
Leaves, resin, and droppings from birds nesting in nearby trees.
Dust from plowing, pesticide treatments, and airborne pollen.
Fine particles and soot deposits that significantly reduce visibility.
Bird droppings are acidic and can cause micro-scratches if not cleaned up promptly.
Air pollution, traffic soot, and fine particulate matter deposits.
Panels that are nearly horizontal do not clean themselves as well in the rain.
Reverse-osmosis water is 99% demineralized: it contains no limescale or minerals. Once applied and dried, it leaves no streaks on your panels. Unlike tap water, which leaves visible limescale deposits, reverse-osmosis water ensures perfect clarity and optimal results after every cleaning.
The price depends on the number of panels, accessibility, and the extent of dirt buildup. As a general guide, expect to pay starting at €80 for fewer than 10 panels, and starting at €120 for 10 to 20 panels. Contact us for a free, personalized quote within 24 hours.
No, as long as the right method is used. We never use high pressure, abrasive materials, or chemicals. Our low-pressure pole system, which uses reverse-osmosis water, is 100% compatible with all types of solar panels. We strictly follow the manufacturers’ recommendations.
A standard installation takes between 1 and 4 hours, depending on the number of panels and accessibility. For an installation of 20 panels on an accessible roof, allow about 2 to 3 hours. Our technicians work independently without disrupting your daily routine.
No, there is no need to shut down the inverter or the system during cleaning. We use only water, and our technicians are trained to work safely on systems that are in operation. If you have any concerns or prefer it, we can schedule the service for early in the morning or on a cloudy day.
We recommend cleaning once or twice a year for most installations. If you live near trees, a major road, or in an industrial area, or if your panels have a low tilt angle, cleaning twice a year is preferable. Spring and fall are the best times to do this.
Our VCA-certified technicians serve customers throughout Belgium. Get a free, no-obligation quote within 24 hours.
