Solar panel coating is concerned with covering your solar panels with a layer of glass or other material that will increase the lifespan of your solar panels while also increasing your overall energy production.  The new coating will improve the efficiency of your solar panels, allowing them to generate more electricity and work for a longer time.

If solar panels are subjected to the sun for an extended period, they can achieve temperatures of 55 degrees Celsius and more which can cause power losses and limit the lifetime of your solar panels, as the heat will wear them down.

How does Solar Panel Coating Works?

The Solar coating is essentially a cooling solution that makes solar panels cool even when it’s hot outside.  By covering the solar cells with a thin coating of silica glass, the panels will retain themselves cool by resisting any excessive heat radiation.
Above the silica glass layer, the coating is made up of tiny cone-like structures.  The glass designs deflect all of the excess heat away from the solar panels, preventing them from overheating and breaking down.

How much can solar panels improve with solar panel coating?

Scientists are now able to generate solar electricity 10 times better on average because of new coating technology. However, a new solar coating company SunDensity has created a sputtering nano-optical covering for solar panels’ outer surfaces that increases energy production by 20% by catching more light than ordinary cells.

An effective solar panel coating should have the following features:

  • Hydrophobic: This is especially useful in rainy areas and allows water to flow more freely away from the panel surface, decreasing the detrimental impact of bad weather.
  • Anti-reflective: An anti-reflective coating improves efficiency by increasing the quantity of light passing through the panel’s surface.
  • Self-Cleaning: Residues such as bird droppings and pollutants do not attach to it, making it self-cleaning.  This also makes the coating dust-resistant and inhibits mold formation. 
  • Easy to manage and sanitize: Because of the self-cleaning capabilities, the surface requires significantly less upkeep to remain effective.

Solar Panel Coating Companies

Top companies contributing in solar energy and solar panel coating are:

1. Trina Solar Co

Trina Solar Co., Ltd. is China based company established in 1997 and is primarily involved in the manufacturing, and selling of Photovoltaic panels, power generators, and system products.  By the end of February 11th, 2022, it has produced over 100GW of Photovoltaic panels, equal to the total output of 4.4 Three Gorges Dam power units and the plantation of more than 7 billion trees throughout the world.

Trina’s financial sectors also cover solar PV program management, finance, planning, building, and operations, as well 5.5GW of solar power plants have been connected to the grid all around the world.

Trina Solar – How panels are made?

Company Website:

2. Canadian Solar

Canadian Solar was established in 2001 in Ontario, Canada, and has successful commercial operations in more than 20 regions across the world.  Having more than   14,000 people working worldwide, Canadian Solar is a major supplier of photovoltaic panels, solar panel coatings as well as a distributor of solar energy services.  In 2018, Canadian Solar generated sales of US $3.8 billion. 

(Canadian Solar 98 MW project in Argentina)

Company Website:

3. Jinko Solar

JinkoSolar Co., Ltd. is based in Shanghai, China, began as a wafer producer in 2006, the largest producer of solar panels, exporting 11.5 GW of panels in 2019.  The company provides solar panels in both polycrystalline and mono-crystalline configurations.  

In 2016, the company presented Eagle Black and Eagle Dual modules.  The Eagle Black module is a nano-scale etched module with a 99.7% light absorption capacity, while the Eagle Dual is a double glass module with a warranty of 30 years and high durability.

Company Website:

4. Hanwha Q CELLS

Hanwha Q CELLS is based in Seoul, South Korea has gained the largest market share in main economies like Germany, the United Kingdom, South Korea, and Japan, because of its advanced technologies and high durability.  At the Solar Industry Awards Ceremony 2015 in Hamburg, Germany, the company earned the Module Manufacturing Innovation award.  Hanwha Q CELLS is securing its dominance in the solar sector through long-term sustainability and competence, based on plans and tactics adapted for the global energy market.

Company Website:

5. JA Solar

JA Solar is a solar power firm founded in 2005, based in Beijing, China, that manufactures, and sells solar panel and solar module technologies.  The business also manufactures and sells mono-crystalline and multi-crystalline photovoltaic panels as well as solar panel coating services.  People in Germany, Denmark, Portugal, South Korea, and the United Kingdom purchase JA Solar products. 

Company Website:

6. First Solar

First Solar, Inc. was established in 1990 by Harold McMaster, and is a solar cell supplier in the United States, as well as a producer of utility-scale energy production and related services such as building, management, and solar coating services.  First Solar manufactures CdTe cells using cadmium telluride (CdTe) and employs stiff thin-film components for its solar cells.  It was on top in Forbes’ ranking of the US’s 20 fastest-growing renewable energy companies in 2011.

(First Solar overview)

Company Website:

7. Yingli Solar

Yingli Solar is based in Baoding, China, and has over 30 national branches and local offices.  The company has distributed over 16 GW of solar modules to consumers throughout the world.  Yingli Solar was founded in 1997 by Liansheng Miao and was the world’s leading producer of PV modules in 2013 and 2014. 

Company Website:

8. Suntech Power

Suntech Power, based in Wuxi, Jiangsu, is a Chinese solar module manufacturer with a yearly manufacturing capability of 2,300 MW.  The company  has offices in China, Australia, USA, France, Portugal, Italy, Germany, Japan, and The United Arab Emirates, in addition to manufacturing sites in Wuxi, Sichuan, Shanghai, Europe, and Asia.  Suntech Power was named the Frost & Sullivan Solar Energy Development Company of the Year in 2008.

(Suntech PV Power Station Project in Brazil)

Company Website:

9. ReneSola

ReneSola Ltd, a China-based solar company founded in 2005, is a developer and operator of solar projects.  The company’s major products are photovoltaic modules, solar panels, inverters, and solar kits. The business participated in a recent round of procurement in New York State and was awarded a contract by the New York State Energy Research and Development Authority (NYSERDA) for a 20-megawatt solar project based in Massena that is known as Roosevelt Solar.

Company Website:

10. SunPower Corp

SunPower Corporation is a publicly traded company based in San Jose, California, produces solar cells, capacitors, mounting hardware, and monitoring tools.  Its products are generally more expensive than competitors, but they produce energy more efficiently and have high durability.  Richard Swanson, a Stanford professor, started the firm in 1985. 

Company Website:

11. SMA solar technology

SMA Solar Technology is a German-based solar power equipment manufacturer headquartered in Niestetal, Northern Hesse, Germany.  The company produces solar inverters for PV systems with grid connection, off-grid power supply, and solar panel coating services.  Customers from all over the world are served by the company.  SMA received the German Fairness Award in 2008. 

(SMA PV Power Plant, Australia)

Company Website:


Solar energy is the world’s large supply source of clean energy, and this trend is predicted to continue.  The demand for solar energy is driven by technological advancements, lower costs, and a trend toward ecologically beneficial energy sources.  Companies like Tesla have released revolutionary solar goods to meet consumer demands and predict a brighter future for solar energy.  Usually, solar panels capture roughly 20% of the sun’s energy, but the most effective cells can absorb up to 40%.  As the sun strikes the planet with about 1,000 watts of power per sq. meter, this isn’t much.

Scientists are aiming to improve the efficiency and lifespan of solar panels for the benefit of the planet and humanity.  The development of silica coating is a significant step toward solar panels that capture all of the power from the sun.

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