Cart0
= 620
In stock

GreenWatts 550W Solar Panel 144 Cell Bifacial HS72-18X-550W Commercial 620 panels per Container (Truckload)

$0.43 /W
$235.95 /panel
Get commercial financing options at CleanFi
Authorized Distributor
StarStarStarStarStar
(20 ratings)
1 CNTR
(620 pcs)
Minimum order – 620 panels

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

Container not included — price is for palletized solar panels only.

Customer reviews & Questions

Verified buyer reviews
Customer Reviews A1 SolarStore on trustpilot
  • Reviews (20)
  • Questions (3)
Drew
08/18/2025
Perfect for big installs output matches specs
mike
06/28/2025
clean sturdy reliable I recommend for anyone going solar
Mason
06/14/2025
Decent product for the price range.
Luke T.
05/10/2025
Using for commercial setup and output’s been steady
Jonathan P. Reed
08/09/2025
Are these panels waterproof
A1 SolarStore
100%! Rated IP68 for water and dust protection.
liam anderson
07/25/2025
does bifacial work on roof ???
A1 SolarStore
Yes, but works best with reflective surfaces like white roofing or gravel.
nathan
07/03/2025
they handle hail?
A1 SolarStore
Yes, tested to withstand 1-inch hailstones at 50 mph.

Specification

Length89.72 in
Width44.65 in
Rated Power Output 550 W
Voltage (VOC)49.8 V
Maximum String Voltage 1500 V
Number of cells144
Technology
  • Bifacial
  • PERC
Cell TypeMonocrystalline
Rated Efficiency21.3%
Connector TypeMC4-EVO2/MC4-compatible
Frame Colorsilver
Dimensions LxWxH89.72 x 44.65 x 1.38 in
Weight71.65 lbs
Pallet Qty31
ManufacturerGreenWatts
Manufacturer Part #HS72-18X-550W
Operating Temperatures −40°F to +185°F
Scope of ApplicationSolar Panels for Buildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty25-year product warranty and 30-year warranty on power output

More GreenWatts products

4 products

Attachments

About product

HS72-18X-550W is part of the HT72-18X(PD)-F Double Glass Series — one of the most recent made by GreenWatts. 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. GreenWatts made solar cells in HS72-18X-550W 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 – 21.3%. 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. GreenWatts offers a 25-year product warranty and guarantees 84.95% of original performance after 30 years of operation.

  • 550 W power output
  • 144 half-cut PERC cells
  • 21.3% efficiency
  • 1500 V DC maximum system voltage
  • MC4-EVO2/MC4-compatible connectors
  • 25-year product warranty and 30-year warranty on power output

More energy and efficiency

The PERC technology further improves an already excellent efficiency of 21.3 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. HS72-18X-550W produces 550 W of power under typical test settings.

Heat-resistant performance

The heat is less of a threat with this module: with one of the lowest temperature coefficients in the industry, HS72-18X-550W loses just -0.326% of efficiency for every 1.8°F above 77°F.

Quality and reliability

HS72-18X-550W undergoes various quality checks during the production process and is subjected to serious quality and reliability testing. Manufacturing facilities are highly automated, removing the possibility of human errors. GreenWatts is committed to quality, safety, and dependability to ensure you get the finest.

Reliability and degradation resistance

GreenWatts guarantees slow deterioration over the next 30 years. The performance will decline by no more than 2% during the first year and then by no more than 0.45% every year after that. After the 30 years are over, your modules will retain at least 84.95% of their original performance. This 550 W GreenWatts solar panel also comes with a substantial 25-year product warranty.

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

89.72" x 44.65" x 1.38"

Weight

71.65 lb

Close-wattage solar panels

17 products

Authorized GreenWatts Distributor

  • Genuine Products: You’re getting the real deal, backed by the manufacturer’s warranty.
  • Exclusive Offers: You can access promotions, discounts, or bundles that are only available through authorized distributors.
  • Competitive Pricing: We offer the best prices because we source directly from the manufacturer, with no middlemen driving up costs.
Learn about GreenWatts

More Commercial Solar Panels

95 products

Related materials