Cleaning Services Beer, Germany

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Photovoltaic Systems must be cleaned just yet

The cleaning entrepreneur Adolf Beer from Mainburg in Bavaria is an experienced building cleaner, proficient entrepreneur and also an alert contemporary.

With his assessment of needs for the cleaning of photovoltaic systems he had the right instinct for an underestimated problem by many operators: Loss of profitability of solar systems cause by soiling.

This is the only way to do it …

As part of his preliminary investigation of how he could advance on its established building cleaning service into the field of solar system cleaning, Beer found GEKKO Solar of the company Serbot. For Beer it was soon clear: “This is the only way to do it!"

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Half a year later, he is the owner of a GEKKO Solar, and another six months later we want to know how the entrepreneur Beer is doing with his GEKKO Solar.

We asked the following questions:

- What are the properties of the GEKKO Solar that persuaded you to purchase the device?

- How has the GEKKO Solar proven itself in practice?

- How has the demand of solar systems cleaning developed in your company?

- According to your previous experiences, what are the advantages and disadvantages of cleaning with the robot?

Beer took stock as follows:

• The cleaning performance of the GEKKO Solar is perfect. No similar result can be achieved with common hand cleaning.

• The cleaning results left by the GEKKO surprise not only the clients but also me.

• The GEKKO achieves top quality cleaning also for very heavy soiling.

• In terms of price, the GEKKO-cleaning is absolutely competitive – the larger the system, the more pronounced this effect is. • I have achieved good turnover from the start.

• Unfortunately, the use of the GEKKO Solar is limited by the roof inclination. For installations on sloping roofs, I cannot serve customers with more than a 45 degree roof inclination.

• There is a deep awareness of the problem. I always need to be very persuasive despite resounding arguments.

• It is clear that a high-tech device like the GEKKO Solar has high demands in terms of operation and maintenance. The service and support of the company Serbot is to our full satisfaction.

Conclusion after half a year of practical use: “This is the only way to do it!”

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As natural as Mr. Beer answered our questions, he also provided his insights on the challenges encountered. We are happy to pass them on at this point.
Mr. Beer explains very clearly how it is that many solar systems operators underestimate the need to clean their plants:
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"In extreme cases, after a few months only, the current efficiency drops below the guaranteed value of the equipment manufacturers and the need for cleaning becomes quickly apparent. However, normally this happens only after two to three years. In fact, at this point the system has already lost 15 to 20 percent of its optimum performance - an effect which is attributed to the safety margin of the solar system manufacturer. With this margin the manufacturer secures its information on the life span of the plant.
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Particularly operators of smaller plants skip this performance loss in the rule. If anything, it is finally apparent only when the dirt already adheres well, sometimes extremely well. The annealed dirt attacks thin-film modules particularly stubbornly. If cleaning is left unattended beyond that point, algae and mosses settle in additionally. Bird droppings then tarnish not only the incident of light on the panels, but also serve as fertilizer for the resultant flora.“
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Mr. Beer, we thank you very much for the interview!