0
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In stock

GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Wholesale 31 panels per pallet

$0.33
$0.26 /pw
Save $0.07
$150.57 /panel
Authorized Distributor
(20 ratings)
1 PLT
(31 pcs)
Minimum order – 31 panels

We have changed the number of solar panels to comply with shipping terms.

More info
Return policy
How to get it33071
Free pickup on Wed, Aug 06 or later

Customer reviews & Questions

Verified buyer reviews
Customer Reviews
  • Reviews (20)
  • Questions (3)
userx
08/29/2024
these things pump out power like crazy. loving it so far
SOPHIA LOREN
08/17/2024
Pretty happy overall, a little heavier than expected but solid build
arya starr
11/30/2024
do this panel make energy on both sides?
A1 SolarStore
Yep, it’s bifacial, so it captures sunlight from the front and back for more power output.
MAXIMUS
11/11/2024
What does dual glass mean
A1 SolarStore
Dual glass means both the front and back are made of tempered glass, which adds strength and extends lifespan.
rsingh
08/04/2024
is this solar panel good for homes
A1 SolarStore
Yes, it's an excellent choice for both residential and commercial systems due to its high efficiency and durability.

Specification

Length89.69in
Width44.65in
Rated Power Output 590 W
Voltage (VOC)51.3V
Maximum String Voltage 1500V
Number of cells144
Cell TypeMonocrystalline
Rated Efficiency22.84%
Connector TypeMC4
Frame Color
  • black
  • silver
Dimensions LxWxH89.69 x 44.65 x 1.38 in
Weight70.55lbs
Pallet Qty31
ManufacturerGSTAR
Manufacturer Part #GSD7S72T-590WT
Operating Temperatures −40°F to +185°F
Scope of ApplicationSolar Panels for Buildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12 years of product and 30 years of linear power warranty
Delivery Time 5-7 Business Days

FAQ

How much is shipping and how long is delivery?
Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.
What is the difference between low price panels and top price panels?
With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.
What are the dimensions of the panel?
Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.
How long is the warranty on the panel?
In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.
Which panels do you recommend for RV, marine?
We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.
Can this panel be used with a 12v system?
Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.
Can I pick up this panel from your fulfillment center to save on shipping?
Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.
How do I connect these panels?
To achieve the best system efficiency, panels should be connected in series to create higher voltage.
How many panels do I need?
This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.
How do I build a solar system?
Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.
How do solar panels compare?
Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.
Can I build a solar system by myself as a Do It Yourself project?
Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.
Can I connect and charge my solar panel battery directly with the solar panel?
We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.
Can I drill holes into the aluminum frame for mounting?
We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.
Do solar panels require maintenance? Can I wash my solar panel?
Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.
Will my panel produce power in an overcast condition?
While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.
Will my panels produce power if covered with snow?
Solar panels cannot produce electricity if covered with snow.
What is the best direction for a solar panel to face?
The best direction for a solar panel to face is the South

About product

GSD7S72T-590WT is part of the GSD7S72T Series — one of the most recent made by GSTAR. These panels employ cutting-edge technologies to achieve superior efficiency and reliability. The TOPCON N-type cell technology ensures excellent power output. This panel features a dual-glass design, which enhances durability, weather resistance, and longevity.

Half-cut cell technology adds a few more percent to the overall performance, making this model a great example of efficiency. GSTAR made solar cells in GSD7S72T-590WT two times smaller than the standard size, thus reducing power loss and improving low-light behavior. Not surprisingly, the efficiency of this module is quite high – 22.84%. And while conventional panels use only one side to absorb photons, bifacial modules employ both sides at the same time. Thanks to the technology, this model can be up to 30% more efficient. GSTAR provides 12 years of product warranty and guarantees that after 30 years, performance will be at 87.4% or more.

  • 144 half-cut TOPCON N-type cells
  • 590 W nameplate capacity
  • 22.84% efficiency
  • 1500 V DC maximum system voltage
  • MC4 connectors
  • 12 years of product and 30 years of linear power warranty

More energy and efficiency

The TOPCON N-type cell technology further improves an already excellent efficiency of 22.84 percent. A reliable PID resistance and a unique glass lamination were added by the maker, which ultimately produced a model that was effective and extremely durable. GSD7S72T-590WT produces 590 W of power under typical test settings.

Keeping the cool in high temperatures

GSD7S72T-590WT manages to stay efficient even at high temperatures. For every 1.8°F above 77°F, it loses just -0.3% in efficiency, allowing you to make the most of the sunniest hours.

High quality standards

GSTAR strict manufacturing standards include multiple tests to provide extreme quality assurance. The facilities are highly automated, allowing the company to maintain high standards and keep the level of warranty claims very low. The dual-glass structure further adds to the panel’s robustness, providing better mechanical protection and superior resistance to moisture and degradation over time.

Low degradation for increased longevity

In the first year of service, these panels will lose no more than 1% of their power output. The average yearly power drop from the second to the 30th year will be no more than 0.4%. After 30 years, the modules will retain more than 87.4% of their initial output.

A panel that can handle hail, wind and snow

The 1.38" frame made from anodized aluminum alloy and a layer of protective tempered glass make this module resistant to the foulest of weather. The front side of the modules can resist a 5400 Pa load, and the back side 2400 Pa.

Size

89.69" x 44.65" x 1.38"

Weight

70.55 lb

Authorized GSTAR Distributor

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  • Competitive Pricing: We offer the best prices because we source directly from the manufacturer, with no middlemen driving up costs.
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  • Overview
  • FAQ

GStar Solar panels: Singaporean brand with efficient solar energy solutions

In this section of our website, we present you G-Star Solar panels. G-STAR Group started in Singapore in 2019. They make solar panels and provide solar system services. The company has offices in six places: Singapore (their main office), United States, Taiwan, Thailand, Indonesia, and Laos.

GStar Solar handles everything from developing new products to making and selling them. The company sells their solar products in North America, Europe, Asia-Pacific, and Africa.

Why choose G-Star Solar panels

GStar Solar offers solar panels for all kinds of applications: home, business and utility-scale projects. Since it is a Singaporean brand, extra import tariffs for Chinese solar panels from the American government do not affect them and make the panels more affordable for US citizens. Finally, GStar solar panels have all the necessary safety certificates for installation, and come with a 25-year warranty for product. The company controls every step of production which often means better quality control.

Benefits of G-Star panels for your business

G-Star solar panels employ p-type cells, n-type cells and NPBC cells. Let us explain what these are.

  • Rapid fulfillment: P-type solar cells use boron-doped silicon as their base material. These cells have been the industry standard for decades because they were cheaper to produce and the manufacturing process was well-understood. However, they have some drawbacks - they're more susceptible to light-induced degradation (LID) and suffer from efficiency losses over time, particularly in hot climates.
  • Speedy delivery: N-type solar cells use phosphorus-doped silicon as their base material. These cells have several advantages over p-type cells: they're less sensitive to light-induced degradation, have better performance in low-light conditions, and generally maintain their efficiency better over time. They also have higher efficiency potential because the phosphorus-doped base material has better electron mobility. While historically more expensive to manufacture, improved production techniques have made n-type cells increasingly competitive.
  • Nationwide reach: In NPBC (N-type Passivated Back Contact) modules, all the metal contacts are moved to the back of the cell, leaving the front surface completely free to capture sunlight. This design eliminates front-side shading losses from metal gridlines and allows for better light absorption. NPBC modules typically achieve higher efficiencies than conventional solar cells, but require more precise manufacturing processes and typically come at a premium price point.

How to select G-Star Solar panels

Looking for solar panels for home? In that case, we recommend solar panels under 500W in power output. They are smaller and less susceptible to wind and hail. For commercial and industrial-scale systems, it makes sense to pick panels that over 500W in power output. For ground-mounted system, consider bifacial solar panels.

Efficiency of solar panels becomes important when you space is limited and you need a powerful system. In this case, look for panels that have over 22-23% efficiency. For hot areas, we recommend panels with HJT cells – they lose less efficiency in hot weather.

What is G-STAR Solar?

G-STAR Solar, officially known as G-STAR Pte. Ltd., is a solar photovoltaic (PV) manufacturer founded in 2019 and headquartered in Singapore. The company focuses on providing smart energy solutions globally, specializing in PV material manufacturing and system services.

Where are G-STAR Solar's manufacturing facilities located?

G-STAR Solar has established a "vertically integrated" PV production base with facilities in Thailand, Indonesia, Laos, the Philippines, and Egypt.

What warranties does G-STAR Solar provide for its modules?

G-STAR Solar offers a 25-year product warranty and a 30-year linear power warranty for its modules, with an annual degradation of 0.40% over 30 years.

Are GSTAR Solar panels a good fit for residential or commercial installations?

Yes, GSTAR panels are versatile and can be used in both residential and commercial systems. Their high power density and cost-effectiveness make them popular in utility-scale and industrial projects as well.

Are GSTAR Solar panels compatible with standard inverters and racking systems?

Absolutely. GSTAR panels are built to comply with international standards and work seamlessly with most common inverters, optimizers, and mounting systems.