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Dust accumulation on solar panels is a serious problem that reduces energy production. One of the biggest brands in the segment presents Anti-Dust modules, maximizing energy and saving maintenance

Written by Noel Budeguer
Published 27/05/2024 às 09:00
Solar panels - solar energy - photovoltaic panels - photovoltaic energy - Longi -
Dust on solar panels reduces energy production. One of the biggest brands in the segment launches Anti-Dust modules, which increase energy generation and save on maintenance

Dust on solar panels reduces energy production. One of the biggest brands in the segment launches Anti-Dust modules, which increase energy generation and save on maintenance

Solar panels constantly face performance issues due to environmental factors and humans.

A combination of operations and maintenance (O&M) strategies, which includes monitoring and field personnel, is often overcome by the elements and human activities.

LONGi Innovation: Hi-MO X6 Anti-Dust Modules

While anti-dust module and anti-dirt coating technologies are nothing new, LONGi has taken research further. According to the “LONGi Global Customer Satisfaction Report 2022”, 80,13% of residential and commercial and industrial (C&I) scenarios experience significant dust accumulation issues in modules. LONGi's innovation not only improves the basic performance of the PV system, but also reduces the frequency of module cleaning, resulting in savings in O&M costs.

Effectiveness of anti-dust modules

LONGi's Hi-MO X6 Anti-Dust solar modules have demonstrated, through long-term outdoor testing, a maximum increase in power generation of 6,08% in a single month, with a monthly average of 2,4% . Additionally, the Hi-MO X6's Anti-Dust design is estimated to save at least one cleaning per year.

How does it work?

The secret to the effectiveness of these modules lies in their frame design. The frame allows settled dust to simply slide off with the rain, thanks to a short edge that is flush with the glass surface, allowing accumulated dust to slide off naturally under the influence of gravity and rain.

Solar panels constantly face performance issues due to environmental and human factors. Source: Longi

Impact of dust on the performance of solar panels

Dust accumulation on solar modules can lead to:

  • Shading Effect: The accumulation blocks incident light, weakening the photoelectric effect and reducing power generation.
  • Corrosion effect: Acids and alkaline substances in dust can corrode coating and glass, forming patterns that reduce incident light and energy generation.
  • Temperature effect: Accumulation increases the module's operating temperature, forming hot spots and reducing cell life.

Key Dust Accumulation Scenarios

Locations with low-slope roofs, industrial areas with high particle emissions and places with low cleaning frequency, such as universities and functional buildings, are particularly susceptible to dust accumulation.

LONGi's Hi-MO X6 Anti-Dust solution

Hi-MO X6 Anti-Dust modules were designed specifically for scenarios where dust accumulation is a recurring problem. This innovation not only improves energy performance, but also reduces the need for frequent maintenance, representing an integral solution to the challenges faced by photovoltaic systems in dust-prone environments.

LONGi's Hi-MO X6 Anti-Dust solar modules have demonstrated, through long-term outdoor testing, a maximum increase in energy generation of 6,08% in a single month. Source: Longi

Why is it so important for solar panels to stay clean?

Keeping photovoltaic panels clean is crucial for several reasons, all related to the efficiency and lifespan of the solar system. Here's why it's so important:

  • Maximizing energy efficiency: Solar panels generate energy by converting sunlight into electricity. When dust, pollen, leaves, bird droppings and other debris accumulate on the panel surface, they block sunlight and reduce the panel's ability to capture solar energy. A clean panel can receive sunlight more effectively and therefore generate more energy.
  • Preventing loss of power: Accumulation of dirt and debris can lead to a significant loss of power. Studies show that even a light layer of dust can reduce the efficiency of a solar panel by 5-10%, and this loss can be much greater in very dirty or dusty conditions.
  • Reduction of overheating: Dust and dirt not only block sunlight, but can also cause “hot spots” on panels. These hot spots occur when parts of the panel heat up more than others, which can damage the solar cells and reduce the overall lifespan of the panel.
  • Long-term savings: Cleaning solar panels regularly can help maintain their efficiency over time, ensuring your solar system provides the maximum return on investment. Less dirt means less energy loss and therefore more savings on your electricity bills.
  • Warranty maintenance: Some solar panel manufacturers require regular maintenance and cleaning as part of their warranty terms. Failure to meet these requirements may void the warranty, leaving the owner without coverage in the event of a panel-related issue.

In summary, regular cleaning and maintenance of solar panels is essential to ensure that they work optimally, maximizing both their energy production and their useful life, as well as protecting the investment made in the solar system.

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Noel Budeguer

Of Argentine nationality, I am a news writer and specialist in the field. I cover topics such as science, oil, gas, technology, the automotive industry, renewable energy and all trends in the job market.

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