Cases
Not only used on photovoltaic panels
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SystemIndustrial and Commercial Photovoltaic Power Station
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PlaceYingkou, Liaoning, China
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DateDecember 8, 2025
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ApplicationSolar Panel Cleaning and Nano Coating
Project background
In the long-term operation of industrial and commercial photovoltaic power stations, power generation efficiency decline and high operation and maintenance costs are common challenges. Yingkou Zhongmei Group’s photovoltaic power station, as an important regional industrial and commercial solar project, had been affected by complex outdoor environmental conditions for a long time.
Dust, industrial particles, bird droppings, oil stains, and other contaminants continuously accumulated on the surface of the solar panels, forming stubborn shading layers. These pollutants significantly reduced the light transmittance of the solar glass and directly lowered power generation efficiency.
Traditional manual cleaning could only remove loose surface dust, but could not thoroughly remove stubborn stains and long-term deposits. Frequent manual cleaning also increased labor and time costs and carried the risk of surface abrasion or module damage. In addition, pollutants could quickly reattach after cleaning, causing power generation efficiency to decline again within a short period.
To solve these operation and maintenance challenges at the source and maximize power station revenue, Yingkou Zhongmei Group partnered with Yingcai New Materials to introduce a professional photovoltaic operation and maintenance solution.
Project introduction
Yingcai Integrated Solution
For this project, Yingcai New Materials customized an integrated “solar panel deep cleaning + nano coating” operation and maintenance solution for Yingkou Zhongmei Group’s photovoltaic power station. The solution was designed to achieve both short-term efficiency improvement and long-term surface protection.
Deep Cleaning Stage
Yingcai used its self-developed dual-head vortex cleaning equipment, water-driven delivery system, and eco-friendly solar panel cleaner to carry out non-damaging deep cleaning on the PV modules. The cleaning process thoroughly removed stubborn stains, accumulated dust, and oxidized deposits from the solar panel surfaces, helping restore the original light transmission performance of the modules.
The cleaner adopts a biodegradable and residue-free formulation. It does not corrode photovoltaic modules, aluminum frames, or related system components, helping ensure equipment safety during the cleaning process.
Nano Coating Stage
After deep cleaning, Yingcai applied its photovoltaic nano coating to the solar panel surfaces. The coating formed a protective layer with strong hydrophilic self-cleaning properties, helping reduce dust adhesion and improve long-term surface cleanliness.
The coating also provides multiple functional properties, including acid and alkali resistance, corrosion resistance, anti-static performance, high light transmittance, anti-reflection performance, and long-term surface protection. This creates a durable protective barrier for photovoltaic modules and supports more stable long-term power generation.
Performance Verification
After project completion, comparative testing was carried out under similar operating conditions to verify the effectiveness of the solution.
Deep Cleaning Test
After deep cleaning alone, the power generation improvement rate reached 7.93%, quickly restoring the power generation performance of the PV modules.
Cleaning + Nano Coating Test
After the combined deep cleaning and nano coating application, the power generation improvement rate reached 44%, delivering a breakthrough efficiency increase for the photovoltaic power station and significantly exceeding the improvement level of conventional cleaning methods.
Customer value
This project delivered comprehensive value improvement for Yingkou Zhongmei Group’s photovoltaic power station, achieving the core goals of cost reduction, efficiency improvement, and service life extension.
Power Generation Revenue Maximization
The 44% power generation improvement directly translated into increased electricity output and stronger revenue potential. This helped shorten the return cycle of operation and maintenance investment and improved the long-term economic value of the power station.
Significant O&M Cost Reduction
The self-cleaning performance of the nano coating helps reduce dust and pollutant adhesion on solar panel surfaces. As a result, the cleaning frequency can be reduced from once or twice per month to once per quarter or even once every six months, significantly lowering labor, equipment, and time costs.
Extended Module Service Life
Professional non-damaging cleaning avoids surface wear caused by traditional cleaning methods. The nano coating helps protect solar panels against ultraviolet radiation, acid and alkali corrosion, environmental erosion, and surface aging, extending module service life and reducing equipment replacement costs.
More Stable Power Station Operation
Standardized application procedures and eco-friendly formulations reduce risks such as module damage, electrical leakage, and operational safety issues during cleaning. This helps ensure stable long-term operation of the power station and reduces losses caused by equipment failure or downtime.
Long-Term Maintenance Convenience
After coating application, the solar panels gain self-cleaning, anti-soiling, and anti-static properties, reducing the need for frequent manual intervention. This supports a “one-time application, long-term benefit” operation model and greatly reduces long-term maintenance pressure for the power station.
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1.Project background
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2.Project introduction
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3.Customer value
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