Solar panel cleaning is an essential but often underestimated aspect of PV plant operation. While we already know that dirt can significantly reduce energy efficiency, the big question is: when is cleaning really necessary? Cleaning too early means unnecessary expense. Cleaning too late means a loss of production. This is where E-Dust comes in, a smart solution that transforms the way solar module cleaning is managed.
The challenge of measuring dirt losses
Traditionally, planning cleaning campaigns has been based on estimates, visual inspections or average yield drop values. However, these methods do not capture the real impact of soiling on energy production, especially when soiling is not homogeneous or changes depending on the tilt of the sun.
In addition, environmental conditions can vary drastically between different locations within a plant, making widespread cleaning inefficient and costly.
What is E-Dust and how does it work?

E-Dust is a state-of-the-art dirt loss measurement system. Its operating principle is as simple as it is effective: it compares the maximum power point (MPP) of two PV modules, one clean and one dirty, placed in identical conditions.
Why is it different?
- Direct and accurate measurement: detects exactly how much energy you are losing to dirt.
- Considers the angle of solar incidence: essential to get a realistic picture of the impact throughout the day.
- Detects inhomogeneous dirt: what other methods miss, E-Dust quantifies.
- Intelligent platform: all information is automatically processed and presented in an easy-to-access online platform.
Information for smart decisions
The E-Dust platform not only shows daily, weekly and annual fouling losses, but also detects fouling patterns over time. This allows you to accurately anticipate when and where to clean, optimizing resources and maximizing energy production.
Key benefits:
- Cleanings only when they are really needed.
- Reduction of unnecessary operating costs.
- Increased energy availability and return on investment.
- Planning based on real data, not assumptions.
The real impact of E-Dust on your solar plant
Integrating E-Dust into the operation and maintenance strategy of your PV plant allows you to recover up to 25% of lost energy in environments with high soiling, such as industrial or desert areas. In addition, it reduces panel wear by avoiding unnecessary cleaning.






In modern solar plant management, it is no longer just about cleaning, but about knowing when and why to clean. E-Dust provides that answer with precision, intelligence and efficiency.
In an industry where every kWh counts, solutions like E-Dust make the difference between a plant that works… and one that performs at its best.
Ready to take control of your solar module cleaning?
Request more information today and turn your data into performance.

