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GSTAR Solar 550W Solar Panel 144 Cell Bifacial GSD7G72M-550WT Wholesale 36 panels per pallet

$7,080.84
$6,177.60/pallet
Save $903.24
$0.31 /W
Strong buyer interestStrong buyer interest
Authorized Distributor
StarStarStarStarStar
(30 ratings)
1 PLT
(36 pcs)
Minimum order – 36 panels

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

Customer reviews & Questions

Verified buyer reviews
Customer Reviews A1 SolarStore on trustpilot
  • Reviews (30)
  • Questions
Nigel King
07/01/2025
good quality panels highly recommend
Robert
05/14/2025
Counts matched, pallets consistent. We meter-tested a sample, all within spec.
Have a question about GSTAR Solar 550W Solar Panel 144 Cell Bifacial GSD7G72M-550WT Wholesale 36 panels per...? Feel free to ask!

Specification

Length89.69 in
Width44.65 in
Rated Power Output 550 W
Voltage (VOC)49.92 V
Maximum String Voltage 1500 V
Number of cells144
Technology
  • Bifacial
  • PERC
Cell TypeMonocrystalline
Rated Efficiency21.29%
Connector TypeMC4/MC4-EVO2
Frame Colorsilver
Dimensions LxWxH89.69 x 44.65 x 1.18 in
Weight70.11 lbs
Pallet Qty36
ManufacturerGSTAR
Manufacturer Part #GSD7G72M-550WT
Operating Temperatures −40°F to +185°F
Scope of ApplicationSolar Panels for Buildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12 year Product Warranty / 30 year Linear Power Warranty

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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

Close-wattage solar panels

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About product

GSD7G72M-550WT is part of the GSD7G72M Series — one of the most recent made by GSTAR. These panels employ cutting-edge technologies to achieve superior efficiency and reliability. The Passivated Emitter Rear Contact (PERC) technology ensures excellent power output. This solar cell type employs an additional reflective layer to absorb more sunlight.

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 GSD7G72M-550WT 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 – 21.29%. 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 an industry-leading 30-year performance warranty and a 12-year product warranty.

  • 144 half-cut PERC cells
  • 550 W nameplate capacity
  • 21.29% efficiency
  • 1500 V DC maximum system voltage
  • MC4/MC4-EVO2 connectors
  • 12 years of product and 30 years of performance warranty

Increased efficiency of up to 21.29 percent

GSD7G72M-550WT ensures maximum power production. The combination of PERC technology and a powerful antireflective coating results in 21.29 percent module efficiency. This is much greater than the average, resulting in significant extra savings over the years of production.

Heat-resistant performance

This module makes the heat less dangerous since it has one of the lowest temperature coefficients in the market, losing just -0.31% of efficiency for every 1.8°F over 77°F.

Quality and reliability

GSD7G72M-550WT is subject to rigorous quality and reliability testing as well as many quality checks throughout the production process. The level of automation in the manufacturing facilities virtually eliminates human error. To guarantee that you receive the finest, REC is committed to quality, safety and dependability.

Low degradation for increased lifespan

The amount of power output loss experienced by these panels during the first year of operation will not exceed 2%. The average yearly power drop from the second to the 30th year will not surpass 0.45%. After 30 years, the module will still produce more than 84.95% of its initial output.

Certified for the most challenging environmental conditions

GSD7G72M-550WT is resistant to PID, salt, acid and ammonia. It can also withstand up to 5400 Pa mechanical load on the front and 2400 Pa on the back. Such robustness is mainly due to the 1.38" thick anodized aluminum alloy frame and a layer of protective glass.

Size

89.69" x 44.65" x 1.38"

Weight

70.11 lb

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