Already 160+ plants cleaned in the Ruhr region

Cleaning solar panels in Ruhrgebiet

Name: Solarco
Rating: 5

The heart of Germany's steel and coal heritage, with more than five million inhabitants and Germany's busiest motorway: in the Ruhr region, solar panels are among the most heavily loaded in Europe. That pressure leaves a stubborn film on the glass that noticeably depresses your efficiency. We clean your system streak-free with osmosis water.

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5/5 Google Reviews

Active in BE, NL, DE & FR

Since 2018

500+ corporate clients

Ruhrgebiet: specific conditions for solar panels

With more than five million inhabitants, the Ruhrgebiet is Germany's largest polycentric metropolis and the heartland of a century of heavy industry. Between Duisburg, Essen, Dortmund and Bochum, solar panels there receive exceptionally high loads of carbon, metal and exhaust particulates.

Local factors affecting returns

Steel and chemical heritage: the concatenation of steel and chemical plants such as ThyssenKrupp, RWE and Evonik continues to disperse metal and carbon particles far beyond city centres.
A40 and A2 motorways: the A40 right through the Ruhr region is among the busiest motorways in Germany.
Legacy coal mining: decades of underground coal mining have left fine carbon dust in the soil and air that sticks to the glass after rain.
Pollen and leaf litter: the Ruhr Valley and the green belts around Essen and Dortmund provide plenty of tree seeds and pollen in spring and autumn.

What that means for your installation

In the Ruhrgebiet, we recommend two cleanings per year for homes, with a quarterly maintenance rhythm for large commercial installations at steel plants, refineries or in ports. We match the schedule to your monitoring data.

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Getting solar panels professionally cleaned

Getting solar panels cleaned doesn't have to be complicated. You request a quote, we schedule a date, and our team does the rest - you don't even have to be there. Afterwards, you will receive a report with before and after photos. No hassles, no surprises, no additional costs.

Our 4-step approach

Thorough pre-inspection

Visual + thermographic check of your installation. We identify hotspots and damage before cleaning.

Robotic cleaning with osmosis water

Our certified cleaning robots operate on battery, without chemicals. Osmosis water dissolves all dirt and leaves no streaks or residue.

Quality control

After cleaning, we recheck each panel. You will receive a detailed report with before and after photos.

Aftercare and Advice

Based on your installation, environment and production data we draw up an optimal cleaning calendar.

Why companies choose Solarco

Professional and environmentally friendly

Solarco uses professional techniques to clean your solar panels, including robotic cleaning systems and osmosis water. This is not only better for your panels, but also better for the environment as no harsh cleaning agents are involved in our solar panel cleaning.

Safety first

We always work according to strict safety guidelines. Our operators are fully certified and trained to work on aerial platforms and roofs. Moreover, we have comprehensive insurance that covers any kind of risk or liability. This allows us to safely clean solar panels.

Innovative cleaning robots

For large solar parks or extensive roof installations, Solarco deploys robot cleaners. These robots run on batteries and are certified by renowned module manufacturers. The robot can quickly and evenly clean large installations of solar panels without damaging the panels.

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Benefits of professional solar panel cleaning in Ruhrgebiet

Higher efficiency: Several studies show that cleaning solar panels can provide an efficiency improvement of a few percent to as much as 15%, depending on the degree of contamination.
Longer lifespan: By preventing dirt build-up and hot spots, your entire system will last longer.
Safety and warranty: Many manufacturers recommend professional cleaning to maintain the warranty. Climbing a roof yourself is also not without risk.
Time savings: With the right tools and experience, we can take care of a large installation in a short time, while you yourself spend your precious time on other things.
Sustainable approach: Osmosis water and robotic cleaning minimise the use of harmful chemicals, which is better for the environment as well as for the panels themselves.

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Frequently asked questions about solar panel cleaning Ruhrgebiet

Due to heavy industry and the A40, we recommend two cleanings per year for homes in the Ruhr region. For industrial roofs near steel plants, refineries or in ports, we recommend a quarterly rhythm.

Rain washes off loose dust but leaves the typical Ruhr mix of carbon, sulphur and metal particles. That layer is responsible for the biggest yield losses we consistently measure in monitoring data here.

Yes. We clean houses throughout the Ruhr area and large company roofs at ThyssenKrupp, RWE, Evonik, BP Gelsenkirchen, at the logistics clusters Duisport and Marl, and at the old Zeche sites.

Customers in the Ruhr region typically see 13 to 30% yield recovery immediately after cleaning, with outliers for industrial roofs near the steel industry. We back up these figures with your pre- and post-turn monitoring data.

We work throughout the Ruhr region, including in Essen, Dortmund, Bochum, Duisburg, Gelsenkirchen, Oberhausen, Mülheim an der Ruhr, Hagen, Witten, Herne, Recklinghausen and Bottrop.