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TOPCon Solar Panels

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In stock
Axitec 440W Solar Panel 108 Cell All-Black Bifacial AC-440TGB/108BB ClearanceAxitec 440W Solar Panel 108 Cell All-Black Bifacial AC-440TGB/108BB Clearance

Axitec 440W Solar Panel 108 Cell All-Black Bifacial AC-440TGB/108BB Clearance

  • Rated Power Output 440 W
  • Voltage (VOC)39.83 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline
In stock
JA Solar 450W Solar Panel 108 Cell All-Black Bifacial JA-54D41-450LB ClearanceJA Solar 450W Solar Panel 108 Cell All-Black Bifacial JA-54D41-450LB Clearance

JA Solar 450W Solar Panel 108 Cell All-Black Bifacial JA-54D41-450LB Clearance

  • Rated Power Output 450 W
  • Voltage (VOC)39.3 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

By Items

In stock
Seraphim 440W Solar Panel 108 Cell All-Black Bifacial SRP-440-BTD-BG ClearanceSeraphim 440W Solar Panel 108 Cell All-Black Bifacial SRP-440-BTD-BG Clearance

Seraphim 440W Solar Panel 108 Cell All-Black Bifacial SRP-440-BTD-BG Clearance

  • Rated Power Output 440 W
  • Voltage (VOC)39.3 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Punta Gorda, FL

In stock
Customer Choice
JA Solar 440W Solar Panel 108 Cell All-Black Bifacial JAM54D41-440/MBJA Solar 440W Solar Panel 108 Cell All-Black Bifacial JAM54D41-440/MB

JA Solar 440W Solar Panel 108 Cell All-Black Bifacial JAM54D41-440/MB

  • Rated Power Output 440 W
  • Voltage (VOC)39.38 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Orlando, FL

In stock
Axitec 440W Solar Panel 108 Cell All-Black Bifacial AC-440TGB/108BB ClearanceAxitec 440W Solar Panel 108 Cell All-Black Bifacial AC-440TGB/108BB Clearance

Axitec 440W Solar Panel 108 Cell All-Black Bifacial AC-440TGB/108BB Clearance

  • Rated Power Output 440 W
  • Voltage (VOC)39.83 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline
In stock
JA Solar 450W Solar Panel 108 Cell All-Black Bifacial JA-54D41-450LB ClearanceJA Solar 450W Solar Panel 108 Cell All-Black Bifacial JA-54D41-450LB Clearance

JA Solar 450W Solar Panel 108 Cell All-Black Bifacial JA-54D41-450LB Clearance

  • Rated Power Output 450 W
  • Voltage (VOC)39.3 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline
In stock
Hyundai 440W Solar Panel 108 Cell All-Black Bifacial HiN-T440NF(BK)Hyundai 440W Solar Panel 108 Cell All-Black Bifacial HiN-T440NF(BK)

Hyundai 440W Solar Panel 108 Cell All-Black Bifacial HiN-T440NF(BK)

  • Rated Power Output 440 W
  • Voltage (VOC)38.8 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Punta Gorda, FL

In stock
Hyundai 440W Solar Panel 108 Cell All-Black Bifacial HiS-T440NF(BK)Hyundai 440W Solar Panel 108 Cell All-Black Bifacial HiS-T440NF(BK)

Hyundai 440W Solar Panel 108 Cell All-Black Bifacial HiS-T440NF(BK)

  • Rated Power Output 440 W
  • Voltage (VOC)39.9 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Punta Gorda, FL

Limited stock
Canadian Solar 440W Solar Panel 96 Cell All-Black CS6.2-48TM-440Canadian Solar 440W Solar Panel 96 Cell All-Black CS6.2-48TM-440

Canadian Solar 440W Solar Panel 96 Cell All-Black CS6.2-48TM-440

  • Rated Power Output 440 W
  • Voltage (VOC)35.4 V
  • Number of cells96 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Punta Gorda, FL

In stock
SEG Solar 440W Solar Panel 108 Cell All-Black Bifacial SEG-440-BTD-BGSEG Solar 440W Solar Panel 108 Cell All-Black Bifacial SEG-440-BTD-BG

SEG Solar 440W Solar Panel 108 Cell All-Black Bifacial SEG-440-BTD-BG

  • Rated Power Output 440 W
  • Voltage (VOC)39.3 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Longwood, FL

In stock
JA Solar 595W Solar Panel 144 Cell Bifacial JA-JAM72-D40-595MB Assembled in the USAJA Solar 595W Solar Panel 144 Cell Bifacial JA-JAM72-D40-595MB Assembled in the USA

JA Solar 595W Solar Panel 144 Cell Bifacial JA-JAM72-D40-595MB Assembled in the USA

  • Rated Power Output 595 W
  • Voltage (VOC)54.1 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline
In stock
JA Solar 600W Solar Panel 144 Cell Bifacial JA-JAM72-D40-600MB Assembled in the USAJA Solar 600W Solar Panel 144 Cell Bifacial JA-JAM72-D40-600MB Assembled in the USA

JA Solar 600W Solar Panel 144 Cell Bifacial JA-JAM72-D40-600MB Assembled in the USA

  • Rated Power Output 600 W
  • Voltage (VOC)54.3 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline
In stock
Jinko 580W Solar Panel 144 Cells Bifacial JKM580N-72HL4-BDVJinko 580W Solar Panel 144 Cells Bifacial JKM580N-72HL4-BDV

Jinko 580W Solar Panel 144 Cells Bifacial JKM580N-72HL4-BDV

  • Rated Power Output 580 W
  • Voltage (VOC)52.5 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Orlando, FL

Limited stock
Hyundai Energy Solutions 640W Solar Panel 156 Cell Bifacial HiS-T640NJHyundai Energy Solutions 640W Solar Panel 156 Cell Bifacial HiS-T640NJ

Hyundai Energy Solutions 640W Solar Panel 156 Cell Bifacial HiS-T640NJ

  • Rated Power Output 640 W
  • Voltage (VOC)57.77 V
  • Number of cells156 Cell
  • Cell TypeMonocrystalline

Pickup on Tue, Apr 14 from Orlando, FL

By Pallets

In stock
Pallet
= 36
SolarSpace 580W Solar Panel 144 Cell Bifacial SS8-72HD-580N Wholesale 36 panels per palletSolarSpace 580W Solar Panel 144 Cell Bifacial SS8-72HD-580N Wholesale 36 panels per pallet

SolarSpace 580W Solar Panel 144 Cell Bifacial SS8-72HD-580N Wholesale 36 panels per pallet

  • Rated Power Output 580 W
  • Voltage (VOC)51.48 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline
In stock
Pallet
= 35
CW Energy 450W Solar Panel 108 Cell Bifacial CWT450-108TNB10 Assembled in the USA Wholesale 35 panels per palletCW Energy 450W Solar Panel 108 Cell Bifacial CWT450-108TNB10 Assembled in the USA Wholesale 35 panels per pallet

CW Energy 450W Solar Panel 108 Cell Bifacial CWT450-108TNB10 Assembled in the USA Wholesale 35 panels per pallet

  • Rated Power Output 450 W
  • Voltage (VOC)39.31 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline
In stock
Pallet
= 36
Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Domestic Content Wholesale 36 panels per palletSunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Domestic Content Wholesale 36 panels per pallet

Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Domestic Content Wholesale 36 panels per pallet

  • Rated Power Output 590 W
  • Voltage (VOC)51.7 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline
In stock
Pallet
= 31
CW Energy 595W Solar Panel 144 Cell Bifacial CWT595-144TNB10 Assembled in the USA Wholesale 31 panels per palletCW Energy 595W Solar Panel 144 Cell Bifacial CWT595-144TNB10 Assembled in the USA Wholesale 31 panels per pallet

CW Energy 595W Solar Panel 144 Cell Bifacial CWT595-144TNB10 Assembled in the USA Wholesale 31 panels per pallet

  • Rated Power Output 595 W
  • Voltage (VOC)51.58 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

By Truckload

In stock
Container
= 648
Lesso 580W Solar Panel 108 Cell Bifacial 580C(HBD)54(210) Commercial 648 panels per Container (Truckload)Lesso 580W Solar Panel 108 Cell Bifacial 580C(HBD)54(210) Commercial 648 panels per Container (Truckload)

Lesso 580W Solar Panel 108 Cell Bifacial 580C(HBD)54(210) Commercial 648 panels per Container (Truckload)

  • Rated Power Output 580 W
  • Voltage (VOC)41.81 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 936
AE Solar 440W Solar Panel 108 Cell All-Black Bifacial AE440CMD-108BDE Container 936 panels (Truckload)AE Solar 440W Solar Panel 108 Cell All-Black Bifacial AE440CMD-108BDE Container 936 panels (Truckload)

AE Solar 440W Solar Panel 108 Cell All-Black Bifacial AE440CMD-108BDE Container 936 panels (Truckload)

  • Rated Power Output 440 W
  • Voltage (VOC)38.66 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 13–16

In stock
Container
= 936
Sunpro Power 440W Solar Panel 108 Cell All-Black Bifacial SPDG440-N108M10 Commercial 936 panels per Container (Truckload)Sunpro Power 440W Solar Panel 108 Cell All-Black Bifacial SPDG440-N108M10 Commercial 936 panels per Container (Truckload)

Sunpro Power 440W Solar Panel 108 Cell All-Black Bifacial SPDG440-N108M10 Commercial 936 panels per Container (Truckload)

  • Rated Power Output 440 W
  • Voltage (VOC)38.53 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 13–16

In stock
Container
= 806
Thornova Solar 440W Solar Panel 108 Cells All-Black Bifacial TS-BBT54(440) Container 806 panels (Truckload)Thornova Solar 440W Solar Panel 108 Cells All-Black Bifacial TS-BBT54(440) Container 806 panels (Truckload)

Thornova Solar 440W Solar Panel 108 Cells All-Black Bifacial TS-BBT54(440) Container 806 panels (Truckload)

  • Rated Power Output 440 W
  • Voltage (VOC)39.16 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 720
GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Commercial 720 panels per Container (Truckload)GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Commercial 720 panels per Container (Truckload)

GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Commercial 720 panels per Container (Truckload)

  • Rated Power Output 590 W
  • ConnectionGrid Tie, Hybrid, Off-Grid
  • Voltage (VOC)53.03 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 936
ZNShine Solar 440W Solar Panel 108 Cell All-Black Bifacial ZXM7-UHLDD108-440 Commercial 936 panels per Container (Truckload)ZNShine Solar 440W Solar Panel 108 Cell All-Black Bifacial ZXM7-UHLDD108-440 Commercial 936 panels per Container (Truckload)

ZNShine Solar 440W Solar Panel 108 Cell All-Black Bifacial ZXM7-UHLDD108-440 Commercial 936 panels per Container (Truckload)

  • Rated Power Output 440 W
  • Voltage (VOC)38.8 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 910
CW Energy 450W Solar Panel 108 Cell Bifacial CWT450-108TNB10 Assembled in the USA Commercial 910 panels per Container (Truckload)CW Energy 450W Solar Panel 108 Cell Bifacial CWT450-108TNB10 Assembled in the USA Commercial 910 panels per Container (Truckload)

CW Energy 450W Solar Panel 108 Cell Bifacial CWT450-108TNB10 Assembled in the USA Commercial 910 panels per Container (Truckload)

  • Rated Power Output 450 W
  • Voltage (VOC)39.31 V
  • Number of cells108 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 13–16

In stock
Container
= 620
GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Commercial 620 panels per Container (Truckload)GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Commercial 620 panels per Container (Truckload)

GSTAR Solar 590W Solar Panel 144 Cell Bifacial Dual Glass GSD7S72T-590WT Commercial 620 panels per Container (Truckload)

  • Rated Power Output 590 W
  • Voltage (VOC)51.3 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 648
Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Commercial 648 panels per Container (Truckload)Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Commercial 648 panels per Container (Truckload)

Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Commercial 648 panels per Container (Truckload)

  • Rated Power Output 590 W
  • Voltage (VOC)51.7 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 13–16

In stock
Container
= 720
Talesun Solar 590W Solar Panel 144 Cells Bifacial TM7G72M-590 Container 720 panels (Truckload)Talesun Solar 590W Solar Panel 144 Cells Bifacial TM7G72M-590 Container 720 panels (Truckload)

Talesun Solar 590W Solar Panel 144 Cells Bifacial TM7G72M-590 Container 720 panels (Truckload)

  • Rated Power Output 590 W
  • Voltage (VOC)52.38 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 576
Phono Solar 590W Solar Panel 144 Cell Bifacial PS590M8GFH-24/TNH Commercial 576 panels per Container (Truckload)Phono Solar 590W Solar Panel 144 Cell Bifacial PS590M8GFH-24/TNH Commercial 576 panels per Container (Truckload)

Phono Solar 590W Solar Panel 144 Cell Bifacial PS590M8GFH-24/TNH Commercial 576 panels per Container (Truckload)

  • Rated Power Output 590 W
  • Voltage (VOC)52.68 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 620
CW Energy 595W Solar Panel 144 Cell Bifacial CWT595-144TNB10 Assembled in the USA Commercial 620 panels per Container (Truckload)CW Energy 595W Solar Panel 144 Cell Bifacial CWT595-144TNB10 Assembled in the USA Commercial 620 panels per Container (Truckload)

CW Energy 595W Solar Panel 144 Cell Bifacial CWT595-144TNB10 Assembled in the USA Commercial 620 panels per Container (Truckload)

  • Rated Power Output 595 W
  • Voltage (VOC)51.58 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 13–16

In stock
Container
= 486
Canadian Solar 610W Solar Panel 132 Cell Bifacial CS6.2-66TB-610H Commercial 486 panels per Container (Truckload)Canadian Solar 610W Solar Panel 132 Cell Bifacial CS6.2-66TB-610H Commercial 486 panels per Container (Truckload)

Canadian Solar 610W Solar Panel 132 Cell Bifacial CS6.2-66TB-610H Commercial 486 panels per Container (Truckload)

  • Rated Power Output 610 W
  • Voltage (VOC)40.8 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 936
Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Domestic Content Commercial 936 panels per Container (Truckload)Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Domestic Content Commercial 936 panels per Container (Truckload)

Sunpro Power 590W Solar Panel 144 Cell Bifacial SPDG590-N144M10 Domestic Content Commercial 936 panels per Container (Truckload)

  • Rated Power Output 590 W
  • Voltage (VOC)51.7 V
  • Number of cells144 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 13–16

In stock
Container
= 496
Canadian Solar 700W Solar Panel 132 Cells Bifacial CS7N-TB-AG-700 Commercial 496 panels per Container (Truckload)Canadian Solar 700W Solar Panel 132 Cells Bifacial CS7N-TB-AG-700 Commercial 496 panels per Container (Truckload)

Canadian Solar 700W Solar Panel 132 Cells Bifacial CS7N-TB-AG-700 Commercial 496 panels per Container (Truckload)

  • Rated Power Output 700 W
  • Voltage (VOC)47.9 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 705W Solar Panel 132 Cells Bifacial CS7N-TB-AG-705 Commercial 496 panels per Container (Truckload)Canadian Solar 705W Solar Panel 132 Cells Bifacial CS7N-TB-AG-705 Commercial 496 panels per Container (Truckload)

Canadian Solar 705W Solar Panel 132 Cells Bifacial CS7N-TB-AG-705 Commercial 496 panels per Container (Truckload)

  • Rated Power Output 705 W
  • Voltage (VOC)48.1 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 685W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-685 Assembled in the USA Commercial 496 panels per Container (Truckload)Canadian Solar 685W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-685 Assembled in the USA Commercial 496 panels per Container (Truckload)

Canadian Solar 685W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-685 Assembled in the USA Commercial 496 panels per Container (Truckload)

  • Rated Power Output 685 W
  • Voltage (VOC)47.3 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 690W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-690 Assembled in the USA Commercial 496 panels per Container (Truckload)Canadian Solar 690W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-690 Assembled in the USA Commercial 496 panels per Container (Truckload)

Canadian Solar 690W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-690 Assembled in the USA Commercial 496 panels per Container (Truckload)

  • Rated Power Output 690 W
  • Voltage (VOC)47.5 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 695W Solar Panel 132 Cells Bifacial 7N-TB-AG-US-695 Assembled in the USA Commercial 496 panels per Container (Truckload)Canadian Solar 695W Solar Panel 132 Cells Bifacial 7N-TB-AG-US-695 Assembled in the USA Commercial 496 panels per Container (Truckload)

Canadian Solar 695W Solar Panel 132 Cells Bifacial 7N-TB-AG-US-695 Assembled in the USA Commercial 496 panels per Container (Truckload)

  • Rated Power Output 695 W
  • Voltage (VOC)47.7 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 700W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-700 Assembled in the USA Commercial 496 panels per Container (Truckload)Canadian Solar 700W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-700 Assembled in the USA Commercial 496 panels per Container (Truckload)

Canadian Solar 700W Solar Panel 132 Cells Bifacial CS7N-TB-AG-US-700 Assembled in the USA Commercial 496 panels per Container (Truckload)

  • Rated Power Output 700 W
  • Voltage (VOC)47.9 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 705W Solar Panel 132 Cells Bifacial 7N-TB-AG-US-705 Assembled in the USA Commercial 496 panels per Container (Truckload)Canadian Solar 705W Solar Panel 132 Cells Bifacial 7N-TB-AG-US-705 Assembled in the USA Commercial 496 panels per Container (Truckload)

Canadian Solar 705W Solar Panel 132 Cells Bifacial 7N-TB-AG-US-705 Assembled in the USA Commercial 496 panels per Container (Truckload)

  • Rated Power Output 705 W
  • Voltage (VOC)48.1 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Canadian Solar 715W Solar Panel 132 Cells Bifacial CS7N-TB-AG-715 Commercial 496 panels per Container (Truckload)Canadian Solar 715W Solar Panel 132 Cells Bifacial CS7N-TB-AG-715 Commercial 496 panels per Container (Truckload)

Canadian Solar 715W Solar Panel 132 Cells Bifacial CS7N-TB-AG-715 Commercial 496 panels per Container (Truckload)

  • Rated Power Output 715 W
  • Voltage (VOC)48.5 V
  • Number of cells132 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

In stock
Container
= 496
Heliene 630W Solar Panel 156 Cell Bifacial 156HC M10 NTYP SL 630W Domestic Content Commercial 496 panels per Container (Truckload)Heliene 630W Solar Panel 156 Cell Bifacial 156HC M10 NTYP SL 630W Domestic Content Commercial 496 panels per Container (Truckload)

Heliene 630W Solar Panel 156 Cell Bifacial 156HC M10 NTYP SL 630W Domestic Content Commercial 496 panels per Container (Truckload)

  • Rated Power Output 640 W
  • Voltage (VOC)57.38 V
  • Number of cells156 Cell
  • Cell TypeMonocrystalline

Ready to ship on Apr 15–20

  • Overview
  • Articles

How TOPCon solar panels differ from standard modules

TOPCon solar panels use n-type cells with a thin tunneling oxide layer that reduces electron recombination, pushing cell-level efficiency above 22%. A1 SolarStore carries TOPCon solar modules from Canadian Solar, JA Solar, Hyundai, CW Enerji, and others, with prices starting from $150. Compared to conventional PERC panels, these modules lose less power in heat, degrade more slowly over time, and often come with bifacial capability built in.

What varies across TOPCon modules in this category

Not all TOPCon panels perform the same way. Wattage ranges from around 420W residential modules to 620W commercial-format panels. Canadian Solar and JA Solar offer bifacial TOPCon models suited for ground-mount arrays, while Hyundai and CW Enerji focus on residential-format panels with all-black aesthetics. Price differences between brands reflect panel size, frame design, and warranty terms more than raw cell technology, since most manufacturers source similar TOPCon solar cell technology.

Matching a TOPCon panel to your installation

A residential TOPCon solar panel in the 400-440W range fits most home rooftops where space is limited and you need maximum output per panel. For commercial flat roofs or ground-mount systems, larger-format bifacial TOPCon modules in the 550-620W range make better use of available area and capture reflected light from below. Installers working in hot climates (Arizona, Texas, Florida) benefit from the lower temperature coefficient that TOPCon panels provide, since output loss per degree of heat is roughly 15% less than PERC.

Specs that matter when choosing TOPCon panels

  • Cell efficiency (21-22% ) — the conversion rate at the cell level. Higher efficiency means more watts from the same panel footprint, which matters on space-constrained roofs.
  • Temperature coefficient (-0.30 to -0.34%/°C) — measures how much power drops as the panel heats up. TOPCon panels lose less output in heat than PERC modules, which typically sit around -0.35 to -0.40%/°C.
  • Bifacial factor (up to 80%) — the percentage of rear-side light the panel can convert. A bifacial TOPCon solar panel on a raised ground mount can produce 5-15% more energy over a year from reflected ground light alone.
  • First-year degradation (<1%) — PERC panels commonly lose about 2% output in their first year. TOPCon cells degrade less because n-type silicon is more resistant to boron-oxygen defects.
  • Wattage range (400W-620W ) — residential panels cluster around 400-440W. Commercial panels start at 540W and go above 620W. Pick based on your racking, roof load, and inverter compatibility.

Ordering TOPCon panels from A1 SolarStore

A1 SolarStore offers TOPCon modules from Canadian Solar, JA Solar, Hyundai, CW Enerji, and others, covering both residential and commercial formats. Local pickup is available, with shipping across the US and freight quotes provided at checkout. All items are covered by manufacturer warranty.

FAQ

What are TOPCon solar panels and how are they different from PERC?

TOPCon stands for Tunnel Oxide Passivated Contact. These panels use n-type silicon cells with an ultra-thin oxide layer between the silicon wafer and a polysilicon contact, which reduces electrical losses at the cell surface. The result is higher efficiency (typically 21-22% at cell level vs. 20-21% for PERC) and slower degradation over the panel's lifespan. PERC panels use p-type silicon, which is more susceptible to light-induced degradation in the first year.

Are TOPCon panels worth the extra cost over standard monocrystalline?

For most new installations, yes. The higher upfront cost per watt is offset by greater energy yield over 25-30 years, thanks to lower degradation rates and better hot-weather performance. On a space-constrained roof where you cannot simply add more panels, the efficiency gain of a TOPCon solar panel directly translates into more kilowatt-hours per year. For large ground-mount arrays, bifacial TOPCon modules can add another 5-15% annual yield from rear-side generation.

What efficiency can I expect from a TOPCon solar panel?

Current TOPCon panels on the market reach 21-22.5% module-level efficiency, with cell-level efficiency above 24% in some cases. Real-world output depends on installation angle, shading, temperature, and inverter matching, but you can expect 3-8% more annual energy from a TOPCon panel compared to a similarly sized PERC panel installed in the same location.

Do TOPCon solar panels work well in hot climates?

They perform better in heat than PERC alternatives. The temperature coefficient of most TOPCon modules falls between -0.30 and -0.34%/°C, meaning they lose less power as rooftop temperatures climb above 25°C. In states like Arizona or Texas, where panel surface temperatures regularly exceed 60°C, this difference can amount to 3-5% more annual production compared to a PERC panel with a -0.37%/°C coefficient.

Are TOPCon panels bifacial?

Many are, but not all. The n-type cell structure used in TOPCon solar cell technology is well suited to bifacial designs because both sides of the cell can absorb light efficiently. Most commercial-format TOPCon panels (540W ) are bifacial with glass-glass construction. Some residential-format models use glass-backsheet construction and are monofacial. Check the product spec sheet for the bifacial factor if rear-side generation matters for your installation.

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