Hyundai Solar Panels Review

Updated: September 9, 2021

Hyundai Heavy Industries Green Energy is a renowned provider for solar energy solutions for over 10 years. It has been manufacturing solar modules since 2005, making it one of the respected companies in the industry. This company is a subsidiary of Hyundai Heavy Industries that was founded in 1972. HHI employs over 48,000 employees and is a global leader with a revenue of over $30 billion.

Hyundai Heavy Industries Green Energy, a subsidiary of Hyundai Heavy Industries, has been manufacturing solar energy since 2005 and produces Tier 1 solar modules. This company has been in business for a long time, giving you security and confidence that they will still be operating when the panels’ lifetime ends.

Hyundai solar panels come with a 10-year product warranty and a 25-year performance warranty (30-year performance warranty for the RG series). Hyundai’s performance warranty is higher than the average market offer.

Hyundai solar provides panels with a high module efficiency at 19.0%. The per-square-foot power generation of the panels is much higher than most brands in the industry.

All the Hyundai solar panels meet the Australian Government Initiative standards. The panels have gone through and passed all UL/VDE lab tests at the Hyundai Research and Development Centre, an accredited test laboratory for the UL and VDE global safety certifications.

Hyundai solar panels are tough enough to withstand the harsh conditions in Australia. Their mechanical strength is unmatched as they can withstand strong winds and heavy snow. Therefore, these panels have been approved to be installed in the Northern territory.

Cell technology

Hyundai solar panels feature both PERL (Passivated Emitter Rear Locally-Diffused solar cell) and PERC (Passive Emitter and Rear Cell) technologies.

PERL cell technology

The monocrystalline PERL cells adopt the Local Black Surface Field technology on their backside. PERL combines both PERC and PERT technologies to produce higher efficiency cells. Like PERC cells, PERL monocrystalline cells’ front and rear surfaces are passivated. What sets these two technologies apart is that for PERL cells, the rear surface is locally diffused at the metal contacts only to decrease the recombination rate and maintain a good electrical contact at the same time.

A higher open-circuit voltage can be reached at the module level for the N-type PERL solar cells featuring low doped boron emitter and SiO2 passivated rear. Besides, a high conversion efficiency of about 22% or more can be achieved by PERL solar cells featuring a high surface concentration boron emitter and a passivated PECVD SiN x rear.

PERL cells have a high life expectancy and can achieve an efficiency of up to 25%.

PERC cell technology

PERC technology cells feature an additional dielectric passivation layer on the rear surface. This is aimed at increasing the energy conversion of the cells for high energy output. The dielectric passivation layer also reduces electric recombination that may block electrons’ free flow through the cell. This increases the efficiency of the module.

The light capturing ability of the cell is also increased, producing more energy that makes the cells efficient.

Range of Hyundai panels

RGmonocrystalline silicon type

use PERC cell technology

18.0% to 18.9% module efficiency

12-year product warranty on materials and workmanship

30-year performance warranty with 80.2% power output

0.6% annual degradation

anti-Light Induced Degradation and Potential Induced Degradation

0.40% temperature coefficient of Pmax

Feature tempered glass and reinforced frame design

UV/VDE lab tested

Corrosion resistant material
RImonocrystalline silicon type

PERL LBSF cell technology

Anti-Light Induced Degradation and Potential Induced Degradation

tempered glass and reinforced frame design

resistant to corrosion

UL/VDE lab tested

10-year product warranty on materials and workmanship

25-year performance warranty with 80.2% power output

0.7% annual degradation

16.9% to 18.4% module efficiency

0.40% temperature coefficient of Pmax
HGMonocrystalline silicon type

PERL LBSF cell technology

Anti-Light Induced Degradation and Potential Induced Degradation

10-year product warranty on materials and workmanship

25-year performance warranty with 80% power output

0.7% annual degradation

18.1% to 19.0% module efficiency

corrosion resistant material

UV/VDE lab tested

high mechanical strength

0.417% temperature coefficient of Pmax

RG Series

Hyundai RG series is one of the best modules in the market. They boast a high efficiency of 18.9%, placing them among the top brands in the market.

Size: 998mmW x 1,640mm Lx 35mmH

Cell type: Monocrystalline silicon type

Cell number: 60 cells

Output: 295W – 310W

Weight: 17.5kg

Cell technology

These panels utilise the PERC technology that provides ultra-high efficiency with a better performance in low irradiation. This maximises their installation in limited space.

PERC technology adds a dialect passivation layer on the cell’s rear to achieve a high conversion efficiency.

The dialect passivation layer reduces electron recombination that reduces the cell’s efficiency. It also increases the cell’s ability to capture light for increased energy absorption.

PERC cell technology improves the efficiency of standard cells. It maximises energy output due to the higher energy conversion, making it a more cost-effective technology.


The efficiency of RG Series panels is incredibly high. In the initial year, the panels exhibited an efficiency of 97.6%, which is seen in other top brands such as LG and SunPower. By the end of 30 years, the panels’ efficiency stands at 80.2%.

Having an efficiency of over 80% after approximately three decades is intriguing. Homeowners can still use the panels for several more years, which means they can hit the 40-year mark with proper care and maintenance.

The slow degradation rate of the panels ensures the panels put out power for a longer time. This increases your ROI and reduces the payback time of the panels.

Warranty/ Guarantee

Hyundai RG Series solar panels come with a 12-year product warranty that covers materials and workmanship. This warranty meets the industry standard. Most high-end solar panels come with a 25-year product warranty, but this does not mean that Hyundai solar panels are less effective. The fact that the manufacturers are willing to stand behind their product is enough to make the panels a worthy investment.

RG Series also comes with a 30-year performance warranty which is adequate compensation for the short material warranty. This warranty offers peace of mind due to the guarantee of power output for your home for 30 years.

Peak Performance

Under optimum conditions, the maximum output of these panels is 310W with a module efficiency of 18.9%. With such a high module efficiency, you are assured of having enough power output for a long time. These panels also strictly eliminate the Light-Induced Degradation and Potential Induced Degradation that increases the yield of the panels during their lifetime.
These panels also perform excellently with a low -0.40% temperature coefficient of Pmax and a nominal operating cell temperature of 46 degrees Celsius.

Datasheet: RG Series

RI Series

Hyundai RI Series is the most powerful series of Hyundai Solar. This series boasts a high power output of 360W. The superior performance of this series makes it one of the best in the market.
The RI Series is designed for commercial and utility applications. It generates more power in low light, making it effective throughout the year.

Size: 998mmW x 1,960mmL x 40mmH

Cell type: Monocrystalline silicon type

Cell number: 72 cells

Output: 330W – 360W

Weight: 22.9kg

Cell technology

RI Series cells are monocrystalline and utilise the PERL Local Back Surface Field cell technology on their rear. This technology provides extremely high performance in low sunlight, making them cost-effective.

The cells feature:

  • Enhanced long and short wavelength responses
  • Minimised back area contact
  • Strictly eliminated LID/PID for a higher actual yield during their lifetime

The Passivated Emitter Rear Locally diffused technology is ideal for limited space as it maximises installation capacity. More so, their bifacial architecture features a higher energy yield of up to 30%. The PERL cell design features two different variations that include:

  • Deep and shallow altered boron emitters
  • Different dielectric layers (rear side passivation)

This technology features a high conversion efficiency, giving these panels an incredibly high power output.


The Hyundai RI series comes with an efficiency of 97% in the initial year and maintains an efficiency of 95% for subsequent years. These panels’ efficiency drops to 80.3% by the end of 25 years when their warranty expires.

This series has a slow annual degradation of 0.7%, making them effective for a long time. So, your payback time decreases as your ROI increases while enjoying a high power output for 25 years and beyond.

Warranty/ Guarantee

Hyundai solar backs its panels with a warranty of 10 years for their products. This warranty covers materials and labour. The panels also come with a performance warranty of 25 years, which exceeds the industry standard.

This solid guarantee gives homeowners peace of mind that their investment is safe. Besides, homeowners no longer struggle to contact offices in South Korea to follow up on their warranties because Hyundai has offices in Australia.

Peak Performance

Under the right conditions, the maximum output of these panels is 360W from a 72-cell module having a high efficiency of 18.4%. The nominal operating temperature of the panels is 46 degrees Celsius with a temperature range of -40 – 85°C.

These panels also have a low-temperature coefficient of Pmax of -0.40, which makes them ideal for all kinds of weather.

Datasheet: RI Series

HG Series

The Hyundai HG Series is another highly efficient module that balances flexibility, high output, and aesthetics. It is designed for both residential and commercial applications. Its ease of installation makes it a favourite among installers.
This series features a high mechanical strength that helps it withstand rigorous weather conditions like strong wind and heavy snow.

Size: 992mmW x 1,675mmL x 35mmH

Cell type: monocrystalline silicon type

Cell number: 120 cells

Output: 300W – 315W

Weight: 18.5kg

Cell technology

Like the RI Series, HG Series utilises the PERL LBSF cell technology that offers an extremely high efficiency and better performance in low sunlight. This makes the panels suitable for limited space as they maximise the installation capacity.

PERL cells have a passivated rear and front surface, with the rear surface being locally diffused at its metal contacts to lower the recombination rate. This ensures high output and maintains good electrical contact.

PERL cells’ life expectancy is high based on the N-type material. These cells, therefore, achieve a high-efficiency rate. This cell technology makes the Hyundai solar cells outstanding in the industry.


The HG series is among the top-rated Hyundai solar panels. Their initial power output stands at 97%. After the first year, the efficiency drops and maintains at about 94% for the next ten years. The panels reach an efficiency of 80% by the 25th year when they reach their lifetime. This is the time the panels’ performable warranty expiries.

The annual degradation rate of these panels is 0.7%, which may seem a bit high because most top brands have a low degradation rate of 0.3%. However, this does not make a big difference because the panels are still effective even after reaching their lifetime.

Warranty/ Guarantee

These panels come with a 10 year product warranty on both materials and workmanship. Although it meets the industry standard, the warranty is way lower than a variety of top brands that offer a product warranty of 25 years.

These panels also come with a 25-year linear performance warranty that compensates for their low product warranty. Since the panels’ efficiency after 25 years is still high, most homeowners enjoy a good ROI on their solar system.

Besides, Hyundai solar is ready to step in to honour warranties if the installers go out of business before the end of the warranty period.

Peak Performance

The maximum performance of the Hyundai HG Series solar panels is 315W for a 120 cell module with high efficiency of 19.0%. This series is one of Hyundai’s top-performers. It has a low-temperature coefficient of Pmax of -0.417 and a nominal operating temperature of 45 ± 2°C.

Datasheet: HG Series

Australian office?

Hyundai Green Energy has an office in Martin Place, Sidney. After exiting the Australian Market in 2011, it began resupplying solar modules in Australia in 2018. This company is looking to build a long, healthy relationship with the Australian Solar market.

Why an Australian office is important

Any solar panels manufacturer needs to have an office in Australia. Typically, most manufacturers start by setting up distribution channels for their modules and forget about customer service. This leads to many unhappy customers that try to call the head offices abroad to claim their warranties.

With an office in Australia, it will be much easier for customers to claim their warranties and get help in case the panels become faulty. Besides, manufacturers will have an opportunity to better their services because they will have a one-on-one interaction with their clients.

Most solar installers go out of business before the lifetime of the panels they are installing ends. This leaves many homeowners stranded when it comes to claiming their warranties. Having an office in Australia means the company is legally required to honour the product warranties.

Hyundai solar panel specification/ datasheet

Cell Number60 cells72 cells120 cells
Cell TypeMonocrystallineMonocrystallineMonocrystalline
Power Output295W – 310W330W – 360W330W – 315W
Nominal Power Voltage39V46V39V
Power Density1.5 J/m31.5 J/m31.5 J/m3
Panel Efficiency18.0% - 18.9%16.9% - 18.4%18.1% - 19.0%
Annual Power Degradation0.6%0.7%0.7%
Dimensions998mmW x 1,640mm Lx 35mmH998mmW x 1,960mmL x 40mmH992mmW x 1,675mmL x 35mmH
Product Warranty12 year10 year10 year
Performance Warranty30 year25 year25 year
Operational Temperature Range46°C ± 246°C ± 246°C ± 2
Made inSouth KoreaSouth KoreaSouth Korea


Yes, Hyundai solar panels are mid-range Tier 1, which makes them a safe investment. Tier 1 solar panels are usually manufactured by big brands that have been in business for a long time. They are, therefore, considered a safer investment than Tier 2 or 3 solar panels. However, Bloomberg’s ranking of solar panels is not a measure of quality but a measure of the financial health and experience of the manufacturer.

Hyundai Heavy Industries Green Energy makes Hyundai solar panels. This company has been manufacturing solar panels for over 10 years, and it is a subsidiary of Hyundai Heavy Industries that boasts revenue of over $30 billion. HHI’s core business is car manufacturing, shipbuilding, industrial engineering, and offshore oil and gas construction.

Hyundai solar panels are manufactured in South Korea. Hyundai Solar is focused on solar markets out of North America and has begun to re-enter the solar market in America. These panels are also manufactured in China and Vietnam.

Hyundai solar panels last for approximately 25 years, the industry standard of solar panels’ lifetime. At this time, the panels exhibit a power output of 80%, which means they will still be functional for many more years. With proper care and maintenance, the panels can last for a longer time.

FAQ’s Hyundai solar

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.