Why is it worth entering PV cleaning? Growing market, recurring revenues, and scalable business models through modern robotic technology.
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Water distribution controls how effectively you remove soiling from PV modules while achieving an even cleaning result. It determines how water is distributed across the surface, how well dirt particles are carried away, and how efficiently you can run the entire cleaning process. In this post, you will learn how optimal water management works in practice, which technical solutions are used, and how you can achieve better results while simultaneously reducing water consumption. You can find further technical details and background knowledge in our expert article: The perfect PV cleaning device – The right solution for your solar surface.
The right water distribution ensures that soiling is removed effectively while delivering even, streak-free results.
Only when you apply water in a targeted and even way can you reliably remove dirt particles from the module surface. At the same time, you reduce friction between the brush and the glass, protecting the surface and enabling more controlled operation.
In addition, water distribution directly affects your efficiency. Optimized distribution ensures you need less water while still achieving a better cleaning result. At the same time, you avoid residues and streaks that can impair the performance of PV modules.
If you use water distribution incorrectly, you clean inefficiently and waste unnecessary resources at the same time.
If too little water is used, soiling does not dissolve completely. This increases friction on the surface, making cleaning more difficult and putting greater strain on the modules.
If, on the other hand, too much water is used, costs increase and so does the risk of streaking. Excess water spreads dirt particles uncontrollably, worsening the cleaning result. Soiling on PV modules is not only a visual issue, but has been proven to lead to measurable losses in yield and value, as current studies show.
In addition, poorly designed systems often lead to uneven water distribution. Some areas are rinsed sufficiently, while others remain too dry. The result is unevenly cleaned PV modules and an inefficient cleaning process.
With the right water distribution, you clean your PV system more efficiently, more evenly, and with significantly greater resource efficiency.
Choose systems that distribute water evenly along the brush. Integrated water channels in the brush head ensure that the water is released precisely where it is needed. This allows you to remove dirt effectively and avoid areas that are too dry or overly wet.
Ideally, use demineralized water to avoid limescale spots and residues. This keeps the module surface clean and streak-free after cleaning.
An adjustable water flow also helps you adapt the water volume to the level of soiling and the environmental conditions. This prevents unnecessary consumption while increasing cleaning performance.
"Optimal water management doesn't mean using as much water as possible. What matters is delivering water evenly and precisely to the areas of the module surface where it's needed for cleaning."
| Water management | Typical benefit |
|---|---|
| Even water distribution | Integrated water management in the brush head |
| Integrated water management in the brush head | Improves dirt removal directly on the surface |
| Adjustable water flow | Reduces water consumption and flexibly adapts to the level of soiling |
If you optimize water distribution in a targeted way, you not only clean more thoroughly, but also work more economically and sustainably at the same time.
With optimal water distribution, you can precisely control the entire cleaning process and get the most out of your PV cleaning. You remove soiling efficiently, avoid residues, and achieve even results across the entire module surface.
At the same time, you reduce water consumption and lower the workload. Those who use water distribution correctly not only work more economically, but also safeguard the long-term performance of the PV system.
Whether it’s an agricultural rooftop system, a commercial roof or a large solar park—the economically optimal cleaning solution depends on system size, location and degree of soiling. Together, we analyze your system and recommend the right cleaning concept.
Our cleaning solutions at a glance
solarROBOT compact
For agricultural as well as small and medium rooftop systems up to approx. 200 kWp. The cleaning robot can be used independently by the system operator and is supplied including a charging station. CE-certified and developed specifically for cost-effective in-house operation.
solarROBOT pro
For medium-sized commercial and ground-mounted systems. With a working width of up to 2 meters and semi-automated operation, the solarROBOT Pro is ideal for efficient cleaning of larger module areas.
solarROBOT ultimate
For large-scale systems and ground-mounted projects. With a working width of 2.4 meters, maintenance-free chain drive and high area performance, the solarROBOT Ultimate was developed for professional use on large PV systems.
solarBRUSH 600
The handheld cleaning solution for special constructions, complex roof geometries and professional cleaning service providers. Ideal for applications where cleaning robots cannot be used due to the design.
For agricultural as well as small and medium rooftop systems up to approx. 200 kWp. The cleaning robot can be used independently by the system operator and is supplied including a charging station. CE-certified and developed specifically for cost-effective in-house operation.
For large-scale systems and ground-mounted projects. With a working width of 2.4 meters, maintenance-free chain drive and high area performance, the solarROBOT Ultimate was developed for professional use on large PV systems.
The handheld cleaning solution for special constructions, complex roof geometries and professional cleaning service providers. Ideal for applications where cleaning robots cannot be used due to the design.
All systems clean without chemicals or soap using pure water and enable gentle, material-friendly cleaning of PV systems.
We analyze your system portfolio, calculate your individual cleaning needs and recommend the economically optimal cleaning concept—from a single system to a multi-site park.
Calculate your individual yield loss with the hyCLEANER solar loss calculator.
We recommend the economically right cleaning concept for your system.
Why is it worth entering PV cleaning? Growing market, recurring revenues, and scalable business models through modern robotic technology.
How much does a dirty solar system cost? Example calculations for agriculture, commercial roofs and ground-mounted systems – incl. yield losses and cleaning intervals.
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