How much does a dirty solar system cost? Example calculations for agriculture, commercial roofs and ground-mounted systems – incl. yield losses and cleaning intervals.
Startseite ❯ Solar-Fachartikel ❯ Expert Knowledge ❯ Water pressure and water volume for cleaning large PV systems
Clean efficiently with the right water strategy
For operators of large photovoltaic systems
Professional cleaning of large PV systems isn’t just about water pressure. What matters is the interplay of sufficient water volume, low pressure, and the right hose technology. Too little water, pressure losses over long distances, or incorrectly sized hoses can impair cleaning performance. With a water strategy tailored to the system, dirt can be effectively removed while protecting sensitive module surfaces.
Operators of large photovoltaic systems face a recurring technical problem:
→ Studies on PV cleaning techniques recommend adjusted water volumes and suitable pressure to optimize cleaning efficiency and module protection.
"For large PV systems, the key isn't the highest possible water pressure, but rather a consistent and sufficient water flow. The right combination of water volume, low pressure, and hose technology creates the foundation for effective yet gentle cleaning."
Josha Kneiber, Geschäftsführer hyCLEANER
For effective and gentle cleaning, water pressure and water volume must be coordinated. Equally important is ensuring that the water reaches the cleaning device with sufficient flow even with elevation differences and long hose runs. In practice, three factors are therefore crucial:
| Challenge | Solution | Result |
|---|---|---|
| Dirt rubs instead of dissolving | Osmosis water + sufficient water volume | Less abrasion & cleanliness |
| Pressure losses | Right hose + pressure planning | Consistent cleaning |
| Module risks | Low pressure instead of high pressure | No surface damage |
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.
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