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System
Photovoltaic Intelligent Protection System
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Place
Bengbu, Anhui, China
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Date
November 2025
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Application
Distributed Photovoltaic Power Station
Project background
During the full lifecycle operation of photovoltaic power stations, dust, oil stains, environmental pollutants, and long-term surface contamination on PV modules can significantly reduce the light transmittance of solar glass, directly affecting power generation efficiency and power station revenue.
Traditional manual cleaning can only provide short-term cleaning effects and often fails to fundamentally solve continuous dust accumulation, pollutant adhesion, and efficiency decline.
As an important distributed photovoltaic project in the region, the Anhui Bengbu photovoltaic power station has an installed capacity of 3.7MW. The station faced common industry challenges such as dust accumulation on module surfaces, declining power generation efficiency, and high operation and maintenance costs. To break through the efficiency bottleneck and maximize long-term return on solar assets, the customer cooperated with Yingcai New Materials to introduce an integrated “deep cleaning + nano coating” technology service solution.

Project introduction
Based on the actual operating conditions of the power station,customized a dual technology solution combining deep photovoltaic module cleaning and nano self-cleaning coating application.
The solution was designed to first remove accumulated dust, oil stains, bird droppings, and stubborn contaminants from the module surface through professional deep cleaning. After restoring the basic surface cleanliness and light transmission performance, Yingcai applied its self-developed photovoltaic nano self-cleaning coating to the module surface.
The nano coating forms a dense protective layer on the solar glass surface through advanced molecular structure technology. It provides self-cleaning, anti-soiling, weather resistance, surface protection, and transmittance enhancement performance, helping reduce dust adhesion from the source while improving long-term module cleanliness and power generation stability.
Efficient Project Delivery
For this 3.7MW photovoltaic power station, Yingcai organized a professional on-site service team and completed the full-station cleaning and coating upgrade in about 10 days.
The work was carried out efficiently without affecting the normal operation of the power station. Yingcai implemented standardized on-site management, process control, and technical testing to ensure that every stage of the project met photovoltaic power station operation and maintenance requirements.
The project demonstrated Yingcai’s ability to deliver integrated photovoltaic cleaning, nano coating application, and field testing services for distributed solar power stations.
Two-Stage Performance Testing
Stage 1: Cleaning Performance Test
In the first stage, Yingcai used its eco-friendly photovoltaic cleaning solution to thoroughly clean dust, oil stains, bird droppings, and other stubborn surface contaminants from the PV modules. After cleaning, the basic transmittance and surface cleanliness of the modules were restored.
Test results showed that the cleaning process alone increased power generation by approximately 8%.
Stage 2: Cleaning + Nano Coating Combined Test
In the second stage, after deep cleaning, Yingcai applied its self-developed photovoltaic nano self-cleaning coating to the module surface. The coating created a protective layer with self-cleaning, anti-soiling, transmittance enhancement, weather resistance, and long-term surface protection properties.
After the combined cleaning and nano coating upgrade, the overall power generation efficiency of the power station increased by 33.1%.
Full-Process Compliance and Service Assurance
The entire project was implemented under a professional photovoltaic power station efficiency improvement service framework. Yingcai provided standardized operation procedures, professional on-site management, and performance data monitoring to protect the customer’s project results and long-term operating interests.
All cleaning, coating, and testing processes were carried out in accordance with photovoltaic power station operation and maintenance requirements, ensuring both project effectiveness and customer asset safety.
Customer value
The project achieved significant results in power generation improvement, O&M cost reduction, and long-term asset protection.
First, the combined solution increased power generation efficiency by 33.1%, directly bringing higher electricity output and stronger power station revenue potential. This helped shorten the investment return cycle and maximize the long-term value of photovoltaic assets.
Second, the self-cleaning properties of the nano coating reduced dust adhesion on the module surface. Rainwater can more easily wash away dust and pollutants, significantly reducing the need for frequent manual cleaning and lowering labor, time, and material costs for long-term operation and maintenance.
Third, the nano protective coating helps resist environmental erosion such as ultraviolet exposure, acid rain, wind, sand, and surface abrasion. This reduces module aging and surface wear, helping extend module service life and maintain stable long-term operation.
Finally, the project verified the practical effect of Yingcai’s integrated “cleaning + coating” solution in distributed photovoltaic power stations. It provides a replicable technical model for similar solar power stations seeking efficiency improvement, operation cost reduction, and long-term asset protection.
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After-sales service
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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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