Winaico Solar Panels Review

Updated: August 17, 2021

Winaico Solar, a family-owned business based in Taiwan, is one of the leading solar companies in the industry. This company emerged from Win Win Precision Technology Co in 2007 and has since grown to be the largest solar panels manufacturers in Taiwan. This company produces an annual capacity of 180MW, which is great considering it has a single manufacturing facility.

Winaico solar panels review

Winaico solar panels offer a high performance, which means they produce more power for a longer time. Winaico P-type solar panels rank first in the Desert Knowledge Australia Solar Centre (DKASC) tests. The module’s performance exceeds that of the Panasonic HIT solar systems and outshine other top brands in the market such as SunPower, REC, Q-cells and Kyocera.

Winaico solar panels have an average module efficiency of 20.1%, which places them among the top performers in the industry. Besides, the panels are highly reliable, as they come with a 25-year product warranty and 25-year performance warranty. The panels ensure a power output of 97% for the initial years and a low degradation rate of 0.7% annually.

Winaico is also the only company that offers a 2-year free insurance cover against all risks, including reduced yield, material damage and service interruption.
Winaico has been in business since 2008, which gives the company an experience of over a decade. This assures customers that the company will still be thriving throughout the warranty.

Cell technology

Winaico solar panels use the PERC (Passivated Emitter and Rear Contact) cell technology, an upgrade of conventional panels. PERC solar cells are growing in popularity because it enables solar cells to produce about 6% to 12% more energy than traditional panels.

PERC solar cells feature an additional layer in their rear that allows sun rays to be reflected back into the cell. This leads to more energy production, which is why PERC cell technology is gaining root in most manufacturing facilities.

The main objective of the PERC cell technology is to improve the light-capturing capabilities of solar cells near the backside and optimize the capture of electrons. PERC solar cells effectively eliminate rear recombination that may decrease the efficiency of the modules.

The dielectric passivation layer also reflects longer wavelengths that usually generate and accumulate heat that may reduce the efficiency of the modules.

Range of Winaico panels

ImageModelFeaturesScore
WST-M6 PERCmonocrystalline silicon cells

PERC cell technology

15-year product guarantee

19.54% to 19.84% module efficiency

3,600 Pa/2,400 Pa maximum design load (+)(-)

5,400 Pa/3,600 Pa maximum test load (+)(-)

3-in-1 insurance cover

black anodised aluminium frame
WST-MXmonocrystalline silicon cells

uses PERC cell technology

has a black anodised aluminium frame

3,600 Pa/2,400 Pa maximum design load (+)(-)

5,400 Pa/3,600 Pa maximum test load(+)(-)

18.83% to 19.40% module efficiency

25-year linear performance guarantee

25-year product warranty on registration
WST-MX blackmonocrystalline silicon cells

Utilises PERC cell technology

features black anodised aluminium frame

18.54% to 18.83 module efficiency

3,600 Pa/2,400 Pa maximum design load (+)(-)

5,400 Pa/3,600 Pa maximum test load (+)(-)

patent water drainage design for self-cleaning during rains
WST-MG Geminimonocrystalline silicon cells

Uses PERC cell technology

Features a black anodised aluminium frame

25-year product warranty with 80.2% power output

25-year performance warranty

features high-density module technology to increase power yield

3-in-1 insurance cover for the complete system

3,600 Pa/1,600Pa maximum design load (push)(pull)

5,400 Pa/2,400 Pa maximum test load (push)(pull)

20.62% module efficiency

WST-M6 PERC Series

The WST-M6 PERC Series is one of the top performance solar panels in the market. They have outstanding efficiency and a low degradation rate that ensures more power production for a long time.

Size: 1,665 mm x 999 mm x 35 mm

Cell type: monocrystalline silicon cell

Cell number: 60 cells

Output: 325W to 330W

Weight: 18.6kgs

Cell technology

These panels use the PERC that enhances their performance. This technology modifies traditional solar cells and enables them to produce 6% to 12% more energy. PERC cell technology reduces electron recombination of cells that blocks the free electron flow that may reduce the cell’s efficiency.

Efficiency

These panels come with an initial efficiency of 97%, which places them among the top-performing brands in the market. The modules have an annual degradation rate of 0.7% and maintain an efficiency of about 80% after 25 years. This means the modules will still be functional beyond their lifetime.

Warranty/ Guarantee

These modules come with a 15-year product warranty and a 25-year performance warranty. This warranty is way above the industry standard of 12 years, which means Winaico stands behind their products.

Peak Performance

The peak performance of these panels is 330W under the right conditions. This gives the panels a module efficiency of 19.84%.

Panels needed for 6.6kW solar system

Winaico WST-M6 PERC Series has a high output which means a 6.6kW solar system will need about 22 panels. If you need extra power in your home, this system is an excellent choice.

Datasheet: WST-M6 PERC Series

WST-MX Series

Winaico WST-MX Series is another great performer that ensures reliability and durability. It is one of Winaico’s top performers that offers optimal performance in all conditions.

Size: 1,705mm x 1.028mm x 35mm

Cell type: monocrystalline silicon cell

Cell number: 60 cells

Output: 330W – 340W

Weight: 20.6kg

Cell technology

WST-MX Series also uses PERC cell technology that improves the cell’s performance. PERC cells feature an extra dielectric layer within the cells’ rear. This additional layer improves the capability of the cell to reflect light, producing more energy.

Efficiency

These panels exhibit an efficiency of 97% during the initial year. By the end of the 25th year, the panels’ efficiency stands at 80.2%. With an annual degradation rate of 0.7%, you are assured of getting enough electricity throughout the solar system’s life.

Warranty/ Guarantee

Winaico WST-MX Series is a great investment and offers peace of mind to homeowners. It comes with a linear performance warranty of 25 years and a product warranty of 25 years.

Peak Performance

Under optimum condition, the efficiency of the panels is 340W with a module efficiency of 19.4%. This makes these panels one of the top-rated in the market due to their high performance.

Panels needed for 6.6kW solar system

The number of panels needed for a 6.6kW solar system is 22. Winaico WST-MX Series have a high energy output that makes it excellent for limited roof space.

Datasheet: WST-MX Series

WST-MX black Series

Winaico WST-MX black Series all-black panels have an elegant look. This series is ideal for people looking for a high-performing system without sacrificing the panels’ aesthetics.

Size: 1,705mm x 1.028mm x 35mm

Cell type: monocrystalline cells

Cell number: 60 cells

Output: 325W – 330W

Weight: 20.6kgs

Cell technology

These panels use Passivated Emitter and Rear Contact cell technology that improves the conversion efficiency of the panels to achieve a higher energy output. An extra dielectric passivation layer is added to the cell’s backside for optimal conversion of sunlight, making solar cells more efficient.

Efficiency

These panels are highly efficient as they exhibit a 97% efficiency in the first year. They have a degradation rate of 0.7%, which ensures the panels maintain an efficiency of 80% after 25 years.

Warranty/ Guarantee

WST-MX black Series comes with a 25-year product and performance warranty. This makes this series a top choice for many homeowners across Australia because the guarantee offers peace of mind.

Peak Performance

These panels have a maximum performance of 330W with high efficiency of 18.8%. This series also performs excellently under high temperatures with a 0.38% Pmax of temperature coefficient.

Panels needed for 6.6kW solar system

You will need about 24 panels for a Winaico WST-MX black Series 6.6kW solar system. These panels are ideal for rooftop installation and feature a patent water drainage design that prevents water and dust build-up.

Datasheet: WST-MX black Series

WST-MG Gemini Series

Winaico WST-MG Gemini Series is the most powerful of Winaico’s solar panels. It has a high power output and a high module efficiency that makes it an excellent choice for quality and longevity.

Size: 1,759mm x 1.034mm x 35mm

Cell type: monocrystalline silicon cell

Cell number: 120 cells

Output: 370W to 375W

Weight: 20.6kgs

Cell technology

Like all Winaico solar panels, WST-MG Gemini Series uses the PERC cell technology. This technology is a modification of the conventional solar cells which enhances the power output of the cells.

Efficiency

These panels feature a 97% nominal power during the initial year with a low degradation rate of 0.7% from the 2nd to the 25th year. By the end of the 25th year, the panels’ output will be at least 80.2%.

Warranty/ Guarantee

These panels come with a 25-year product and performance warranty. They also have a 3-in-1 insurance cover for the complete system that makes them stand out in the industry.

Peak Performance

The peak performance of these panels is 375W under the right conditions. This high output makes these panels highly efficient for all applications. They also have a high module efficiency of 20.62 per cent.

Panels needed for 6.6kW solar system

The number of panels needed for a 6.6kW solar system is 19. This system has an incredibly high power output, which means fewer panels will be needed. It is an excellent choice for limited roof space.

Datasheet: MG Gemini Series

Australian office?

Winaico solar is one of the top producers of quality solar energy across the globe. In Australia, Winaico has an office in Sydney. This company forms direct relationships with local solar panels installers rather than distributing their products through wholesalers.

Why an Australian office is important

An Australian office is highly important as it benefits not only the customers but also the manufacturers.

One of the biggest issues that customers face is trying to reach the head offices of the manufacturers to follow up on their warranty. Most companies focus on setting up their products’ distribution channels without thinking about customer service.

An Australian office makes it easy for customers to claim their warranties instead of struggling to call offices in Taiwan. More so, it makes it easier for manufacturers to address all their customers’ issues, which leads to more customer satisfaction.

Besides, having an Australian office ensures customers do not rely on local solar panels installers who have become unreliable over the years. Most residential installers go out of business within the lifetime of the panels they are installing.

Winaico solar panel specification/ datasheet

 WST-M6 PERCWST-MXWST-MX blackWST-MG Gemini
Cell Number60 cells60 cells60 cells120 cells
Cell TypeMonocrystalline cellMonocrystalline cellMonocrystalline cellMonocrystalline cell
Power Output325W – 330W330W – 340W325W – 330W370W – 375W
Nominal Power Voltage31V30V30V31V
Power Density1.5 J/m31.5 J/m31.5 J/m31.5 J/m3
Panel Efficiency19.54% - 19.84%18.83% - 19.40%18.54% - 18.83%20.62%
Annual Power Degradation0.7%0.7%0.7%0.7%
Dimensions1,665 mm x 999 mm x 35 mm1,705mm x 1.028mm x 35mm1,705mm x 1.028mm x 35mm1,759mm x 1.034mm x 35mm
Weight18.6kg20.6kgs20.6kgs20.6kgs
Product Warranty15 years25 years25 years25 years
Performance Warranty25 years25 year25 year25 years
Operational Temperature Range43.85 ± 3 °C43.85 ± 3 °C43.85 ± 3 °C43.85 ± 3 °C
Made inTaiwanTaiwanTaiwanTaiwan

FAQs

Winaico solar panels have been on Bloomberg Tier 1 list, but they did not appear on the 2020 list of Tier 1 solar panels. The fact that Winaico appears in the previous Tier one ranking list makes it an excellent choice for homeowners. Bloomberg’s ranking is, however, not a measure of the panels’ quality and performance but the bankability or the financial health of the company.

Winaico solar panels are manufactured by Winaico, a family-owned that was established in 2008. This company has opened offices in the European, United States, Japanese and Australian markets. Winaico aims at delivering high-quality solar solutions at affordable prices across the globe.

Winaico Solar panels are manufactured in Hsinchu, North-West Taiwan This is a windy city prone to typhoons which is why Winaico solar panels are typhoon-resistant to prevent them from damage.

Winaico solar panels last for approximately 25 years. The industry standard of the lifetime of solar panels is 25-30 years. The panels can last for over 25 years with proper care and maintenance.

FAQ’s Winaico solar panels

Ben McInerney head shotAuthor: Ben McInerney is a renewable energy enthusiast with the goal of helping more Australians understand solar systems to make the best choice before they purchase. Having an accredited solar installer in the family helps give Ben access to the correct information, which allows him to break it down and make it easily understandable to the average homeowner.