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Axitec 550W Solar Panel 144 Cell Bifacial AC-550MBT/144US Assembled in the USA Commercial 620 panels per Container (Truckload)

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Customer reviews & Questions

Verified buyer reviews
Customer Reviews A1 SolarStore on trustpilot
  • Reviews (87)
  • Questions (2)
STEVEN
06/02/2025
Engineer here—Voc and Isc matched spec to the decimal impressive
zoe
08/15/2024
five stars easy they soak up sun even on cloudy Iowa mornings
Grace
07/17/2024
Panels crank a steady 550 W each—couldn’t ask for more.
nina
11/15/2024
snow load ok?
A1 SolarStore
Panels are rated for heavy snow (5400 Pa front load) and wind (2400 Pa back load).
TOMMY Lee
10/19/2024
Will shade kill output
A1 SolarStore
Not kill — half-cut design plus three bypass diodes keep production decent under partial shade.

Specification

Length89.68 in
Width44.64 in
Rated Power Output 550 W
Voltage (VOC)50.2 V
Maximum String Voltage 1500 V
Number of cells144
Cell TypeMonocrystalline
Rated Efficiency21.29%
Connector TypeIP68, Staubli MC4
Frame Colorsilver
Dimensions LxWxH89.68 x 44.64 x 1.38 in
Weight61.73 lbs
Pallet Qty31
ManufacturerAxitec
Manufacturer Part #AC-550MBT/144US
Operating Temperatures −40°F to +185°F
Scope of ApplicationSolar Panels for Buildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty15 years of manufacturer’s warranty and 25 years of performance guarantee

Close-wattage solar panels

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About product

Among the newest offerings of Axitec, AC-550MBT/144US is part of the AXIbipremium XXL HC MT series. These panels use state-of-the-art technology to achieve high efficiency and dependability. This panel takes full advantage of the Passivated Emitter Rear Contact (PERC) technology that allows it to capture up to 12% more energy. All thanks to a reflective layer on the back. This design maximizes the number of photons absorbed by solar cells.

The use of half-cut cell technology is an additional perk. The solar cells of AC-550MBT/144US are half the size of those found in standard panels. Major advantages include reduced power consumption, extended life and enhanced efficiency in low-light conditions. As a result, the panel achieves an impressive efficiency of 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. Axitec provides 15 years of manufacturer‘s warranty and guarantees that after 25 years, performance will be at 85% or more.

  • 550 W power output
  • 144 half-cut PERC cells
  • 21.29% efficiency
  • 1500 V DC maximum system voltage
  • Stäubli MC4 connectors
  • 15-year manufacturer‘s warranty and 25-year performance guarantee

More energy and efficiency

The PERC technology further improves an already excellent efficiency of 21.29 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. AC-550MBT/144US produces 550 W of power under typical test settings.

Keeping cool in hot weather

Even at high temperatures, AC-550MBT/144US remains efficient. It loses just -0.35% efficiency for every 1.8°F over 77°F, letting you make the most of the sunniest hours.

High quality standards

Axitec stringent production requirements include various tests to guarantee high quality. The facilities are highly automated, allowing the manufacturer to maintain high standards while keeping warranty claims to a minimum.

Low degradation for a longer lifespan

These panels will lose no more than 3% of their power output in the first year of service. From the 2nd year to the 25th year, the average annual power decline will be no more than 0.5%. The module retains over 85% of its original output after 25 years. Guaranteed by Axitec.

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

89.68" x 44.64" x 1.38"

Weight

61.73 lb

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