Are Canadian Solar panels compatible with battery storage systems?

Yes, Canadian Solar panels work well with most solar battery storage systems, including lithium-ion and lead-acid batteries. They can be integrated into off-grid and hybrid solar setups when paired with a compatible inverter.

Are Canadian Solar panels Tier 1?

Yes, Canadian Solar is a Tier 1 manufacturer, meaning it has a strong financial background and a proven track record of producing high-quality, reliable solar panels. The company has been a leader in the solar industry for over 20 years and is consistently ranked among the world's top solar panel manufacturers.

What makes Canadian Solar panels a good choice?

Canadian Solar is a Tier 1 solar panel manufacturer known for its high efficiency, durability, and affordability. The company offers a wide range of monocrystalline, polycrystalline, and bifacial panels, making them suitable for residential, commercial, and utility-scale projects.

What is the warranty on Canadian Solar panels?

Canadian Solar provides a 12- to 25-year product warranty, depending on the model. Additionally, their linear performance warranty guarantees at least 84.8% of the original output after 25 years for most of their modules.

Where are Canadian Solar panels manufactured?

Despite the name, Canadian Solar is a global company headquartered in Canada, but its panels are manufactured in China, Canada, Vietnam, and other locations. The company follows strict quality control and testing standards to ensure durability and performance.

What types of solar panels does Canadian Solar offer?

Canadian Solar produces a variety of high-efficiency monocrystalline (HiKu, HiDM) and polycrystalline solar panels. Their bifacial modules can generate power from both sides, increasing total energy production. They also offer TOPCon and Heterojunction Technology (HJT) panels for even greater efficiency.

Are Canadian Solar panels good for extreme weather conditions?

Yes, Canadian Solar panels are designed to withstand high wind and snow loads (up to 5400 Pa for snow and 4000 Pa for wind). They are also resistant to salt mist, ammonia, and PID degradation, making them ideal for various climates, including coastal and desert environments.

Where are Philadelphia Solar panels manufactured?

Philadelphia Solar is headquartered in Jordan, where they have a state-of-the-art manufacturing facility. They have also announced plans to establish a manufacturing presence in the USA by 2024, aiming to produce American-made solar panels to serve the U.S. market.

What is the warranty on Philadelphia Solar panels?

Philadelphia Solar provides a 12-year product warranty covering material and workmanship defects. Additionally, they offer a 25-year linear power output warranty, ensuring that the panels will maintain a high level of performance over time.

Are Philadelphia Solar panels suitable for extreme weather conditions?

Yes, Philadelphia Solar panels are designed to withstand harsh environmental conditions. They are built with robust materials and have been tested to endure high wind and snow loads, making them suitable for various climates and weather extremes.

Do Philadelphia Solar panels comply with international certifications?

Yes, Philadelphia Solar panels comply with international quality and safety standards. They hold multiple certifications, including IEC and UL listings, ensuring their products meet global performance and safety requirements.

Do Philadelphia Solar panels have strong temperature performance?

Yes, Philadelphia Solar panels have a low temperature coefficient, which means they maintain high efficiency even in extreme heat. Their performance remains stable in temperatures ranging from -40°C to +85°C (-40°F to 185°F), making them ideal for hot climates like the Middle East, Africa, and the southwestern U.S.

What makes Axitec solar panels a good choice?

Axitec solar panels are known for their high efficiency, durability, and affordability. They use half-cut cell technology to improve energy output, have a strong performance warranty of up to 25 years, and are built to withstand harsh weather conditions, making them a reliable choice for residential and commercial solar installations.

What is the warranty on Axitec solar panels?

Axitec offers a 15 to 25-year performance warranty, depending on the model. The linear power warranty ensures that the panels maintain at least 85% of their original efficiency after 25 years. Additionally, they provide a 12-year product warranty for defects and workmanship.

Are Axitec solar panels Tier 1?

While Axitec is not classified as a Tier 1 manufacturer, the company has been in the solar industry for over 20 years and is known for German engineering standards. Their panels undergo rigorous testing, and many installers consider them a high-quality, cost-effective alternative to Tier 1 brands.

What types of solar panels does Axitec offer?

Axitec produces monocrystalline and polycrystalline solar panels, with a focus on high-performance half-cut cell monocrystalline modules. They also have bifacial models that capture sunlight from both sides, increasing overall energy yield.

Where are Axitec solar panels manufactured?

Axitec is a German-based company, but its manufacturing facilities are located in Asia and Europe. Their production adheres to strict German quality standards, ensuring reliable performance and durability.

How do Axitec panels perform in extreme weather conditions?

Axitec solar panels are designed to withstand high snow loads (up to 5400 Pa) and wind loads (up to 4000 Pa). They are also certified for high humidity, salt mist, and ammonia resistance, making them suitable for various climates, including coastal and high-temperature areas.

Are Axitec solar panels compatible with battery storage systems?

Yes, Axitec solar panels are compatible with most solar battery storage systems, including lithium-ion and lead-acid batteries. They can be integrated into off-grid and hybrid solar setups when paired with the right inverter and charge controller.

Who is CW Energy USA?

CW Energy USA is a subsidiary of CW Enerji, a solar panel manufacturer based in Antalya, Turkey, with an annual production capacity of 1.8 GW. Established in 2010, the company has gained global recognition for its commitment to quality and innovation. CW Energy USA offers high-performance solar panels suitable for residential, commercial, and industrial applications.

What types of solar panels does CW Energy USA offer?

CW Energy USA specializes in monocrystalline solar panels, including bifacial modules that can capture sunlight from both sides, enhancing energy production.

What is the warranty on CW Energy USA solar panels?

CW Energy USA provides a 12-year product warranty covering materials and workmanship. Additionally, they offer a 30-year linear performance warranty, ensuring that the panels will retain at least 80.1% of their original performance after 30 years.

Are CW Energy USA solar panels suitable for extreme weather conditions?

Yes, CW Energy USA solar panels are built to withstand harsh environmental conditions. They are resistant to potential-induced degradation (PID), salt mist, acid, and ammonia. The panels can endure mechanical loads up to 5400 Pa on the front and 2400 Pa on the back, making them suitable for various climates, including coastal and high-wind areas.

What certifications do CW Energy USA solar panels hold?

CW Energy USA panels are certified to meet international quality and safety standards, including:UL Certification SGS Certification VDE Certification TÜV-SÜD Certification ISO Certification These certifications ensure compliance with rigorous industry standards.

Where are GreenWatts solar panels manufactured?

GreenWatts operates a production facility in Brazil, combining advanced technology with skilled craftsmanship to produce high-quality solar modules. They have experience in exporting globally, ensuring their products meet international standards.

What is the lifespan of GreenWatts solar panels?

GreenWatts solar panels are designed to last 25+ years, with a linear power output warranty ensuring at least 80-85% efficiency after 25-30 years. Their corrosion-resistant aluminum frame and tempered glass enhance durability against extreme weather conditions.

Do GreenWatts solar panels qualify for federal and state incentives?

Yes, GreenWatts solar panels are eligible for the U.S. Federal Solar Investment Tax Credit (ITC), which provides up to 30% tax credit on installation costs. They also qualify for various state rebates and net metering programs, depending on local policies.

Are GreenWatts solar panels suitable for extreme weather conditions?

Yes, GreenWatts solar panels are designed to withstand harsh environmental conditions. For example, their 450-Watt Monocrystalline Solar Panel is encased in an anodized aluminum alloy frame with high-transmittance coated tempered glass, allowing it to endure temperatures ranging from -40°C to +85°C.

What is the efficiency of GreenWatts solar panels?

GreenWatts' solar panels offer high efficiency rates. For instance, their 550W bifacial solar panel achieves a maximum efficiency of up to 21.3%, making them suitable for utility-scale projects.

Where are SolarSpace Power solar panels manufactured?

SolarSpace Power operates multiple manufacturing facilities across Asia, including: China, Cambodia, Laos. As of 2023, the company has achieved a production capacity of 60 GW for solar cells and 7.2 GW for solar modules.

Are SolarSpace Power solar panels suitable for extreme weather conditions?

Yes, SolarSpace Power's solar panels are designed to withstand various environmental conditions, including extreme weather. They are built with durable materials and have been tested to endure high wind loads and heavy snow, ensuring reliable performance across diverse climates.

What certifications do SolarSpace Power solar panels hold?

SolarSpace Power's solar panels are certified to meet international quality and safety standards, including IEC 61215 & IEC 61730, UL 61730 & UL 1703, ISO 9001 & ISO 14001. These certifications affirm the panels' adherence to rigorous industry standards, providing customers with assurance of their quality and safety.

What warranties does SolarSpace Power provide for their solar panels?

SolarSpace Power offers robust warranty terms for their products:Product Warranty: Covers 12 to 15 years against manufacturing defects. Performance Warranty: Extends up to 30 years, guaranteeing a minimum power output retention of 87% over the warranty period.

Do SolarSpace Power solar panels qualify for U.S. solar incentives?

Yes, SolarSpace Power panels qualify for the U.S. Federal Solar Investment Tax Credit (ITC), which provides a 30% tax credit on the cost of a solar installation. They may also be eligible for state rebates, net metering programs, and local solar incentives.

Where are Hounen Solar panels manufactured?

Hounen solar panels are manufactured in a state-of-the-art facility in Orangeburg, South Carolina, USA, and there are plans for global expansion underway, including a new factory in the United States.

Are Hounen Solar panels Tier 1?

Hounen Solar is considered an emerging brand and may not be classified as Tier 1 by Bloomberg yet. However, the company is rapidly growing and gaining a reputation for reliable and competitively priced solar modules.

What types of solar panels does Hounen Solar offer?

Hounen Solar offers a range of monocrystalline panels, including half-cell and bifacial models, with power outputs typically ranging from 400W to 600W, depending on the model.

What kind of warranty does Hounen Solar provide?

Hounen Solar panels usually come with a 12-year product warranty and a 25-year performance warranty, ensuring long-term energy production and peace of mind.

Are Hounen Solar panels suitable for harsh weather conditions?

Yes, Hounen panels are tested for durability and resistance to wind, snow, and salt mist, making them suitable for various climates and coastal installations.

Are Hounen Solar panels compatible with most inverters and mounting systems?

Yes, Hounen panels meet international standards and are compatible with most major inverter brands and racking systems.

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.

Home
Solar Panels
400 watt solar panels

400+ Watt Solar Panels

All Solar Panels Clearance By Items By Pallets By Truckload

= 36

Regitec 415W Solar Panel 108 Cell RMH54/415B1 Wholesale 36 panels per pallet

Rated Power Output 415 W
Voltage (VOC)37.45 V
Number of cells108
Cell TypeMonocrystalline

= 36

Regitec 430W Solar Panel 108 Cell All-Black Bifacial RMHT54/430AB2 Wholesale 36 panels per pallet

Rated Power Output 430 W
Voltage (VOC)38.49 V
Number of cells108
Cell TypeMonocrystalline

Seraphim 410W Solar Panel 108 Cell Bifacial SRP-410-BMD-HV Clearance

Rated Power Output 410 W
Voltage (VOC)37.32 V
Number of cells108
Cell TypeMonocrystalline

Peimar 450W Solar Panel 120 Cell All-Black DR10H450M Clearance

Rated Power Output 450 W
Voltage (VOC)41.18 V
Number of cells120
Cell TypeMonocrystalline

Canadian Solar 455W Solar Panel 108 Cell All-Black CS6.1-54TM-455H Clearance

Rated Power Output 455 W
Voltage (VOC)39.1 V
Number of cells108
Cell TypeMonocrystalline

LONGi 405W Solar Panel 108 Cell All-Black LR5-54HPB-405M

Rated Power Output 405 W
Voltage (VOC)37.15 V
Number of cells108
Cell TypeMonocrystalline

JA Solar 405W Solar Panel 108 Cells JAM54S31-405/MR Clearance

Rated Power Output 405 W
Voltage (VOC)37.23 V
Number of cells108
Cell TypeMonocrystalline

Pickup on Mon, Feb 2 from Orlando, FL

Phono Solar 440W Solar Panel 108 Cells Bifacial PS440M8GFH-18/VNHB Clearance

Rated Power Output 440 W
Voltage (VOC)39.61 V
Number of cells108
Cell TypeMonocrystalline

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 TypeMonocrystalline

Customer Choice

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 TypeMonocrystalline

JA Solar 445W Solar Panel 156 Cell JAM78S10-445/MR Clearance

Rated Power Output 445 W
Voltage (VOC)53.31 V
Number of cells156
Cell TypeMonocrystalline

Sunpro Power 440W Solar Panel 108 Cell All-Black Bifacial SM SP-440/108/FS30/BF

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

Customer Choice

JA Solar 440W Solar Panel 156 Cell JAM78S10-440/MR Clearance

Rated Power Output 440 W
Voltage (VOC)53 V
Number of cells156
Cell TypeMonocrystalline

Jinko Solar 430W Solar Panel 108 Cell All-Black JKM430N-54HL4-B Clearance

Rated Power Output 430 W
Voltage (VOC)39.16 V
Number of cells108
Cell TypeMonocrystalline

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 TypeMonocrystalline

Pickup on Mon, Feb 2 from Orlando, FL

Q CELLS 410W Solar Panel 132 Cell Q.PEAK DUO BLK ML-G10+ Assembled in USA Clearance

Rated Power Output 410 W
Voltage (VOC)45.37 V
Number of cells132
Cell TypeMonocrystalline

Jinko 410W Solar Panel 144 Cell JKM410M-72HL-V

Rated Power Output 410 W
Voltage (VOC)50.4 V
Number of cells144
Cell TypeMonocrystalline

ClearanceUP TO 50% OFF

= 36

Regitec 415W Solar Panel 108 Cell RMH54/415B1 Wholesale 36 panels per pallet

Rated Power Output 415 W
Voltage (VOC)37.45 V
Number of cells108
Cell TypeMonocrystalline

= 36

Regitec 430W Solar Panel 108 Cell All-Black Bifacial RMHT54/430AB2 Wholesale 36 panels per pallet

Rated Power Output 430 W
Voltage (VOC)38.49 V
Number of cells108
Cell TypeMonocrystalline

Seraphim 410W Solar Panel 108 Cell Bifacial SRP-410-BMD-HV Clearance

Rated Power Output 410 W
Voltage (VOC)37.32 V
Number of cells108
Cell TypeMonocrystalline

Peimar 450W Solar Panel 120 Cell All-Black DR10H450M Clearance

Rated Power Output 450 W
Voltage (VOC)41.18 V
Number of cells120
Cell TypeMonocrystalline

Canadian Solar 455W Solar Panel 108 Cell All-Black CS6.1-54TM-455H Clearance

Rated Power Output 455 W
Voltage (VOC)39.1 V
Number of cells108
Cell TypeMonocrystalline

LONGi 405W Solar Panel 108 Cell All-Black LR5-54HPB-405M

Rated Power Output 405 W
Voltage (VOC)37.15 V
Number of cells108
Cell TypeMonocrystalline

JA Solar 405W Solar Panel 108 Cells JAM54S31-405/MR Clearance

Rated Power Output 405 W
Voltage (VOC)37.23 V
Number of cells108
Cell TypeMonocrystalline

Pickup on Mon, Feb 2 from Orlando, FL

Phono Solar 440W Solar Panel 108 Cells Bifacial PS440M8GFH-18/VNHB Clearance

Rated Power Output 440 W
Voltage (VOC)39.61 V
Number of cells108
Cell TypeMonocrystalline

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 TypeMonocrystalline

Customer Choice

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 TypeMonocrystalline

JA Solar 445W Solar Panel 156 Cell JAM78S10-445/MR Clearance

Rated Power Output 445 W
Voltage (VOC)53.31 V
Number of cells156
Cell TypeMonocrystalline

Customer Choice

JA Solar 440W Solar Panel 156 Cell JAM78S10-440/MR Clearance

Rated Power Output 440 W
Voltage (VOC)53 V
Number of cells156
Cell TypeMonocrystalline

Jinko Solar 430W Solar Panel 108 Cell All-Black JKM430N-54HL4-B Clearance

Rated Power Output 430 W
Voltage (VOC)39.16 V
Number of cells108
Cell TypeMonocrystalline

Q CELLS 410W Solar Panel 132 Cell Q.PEAK DUO BLK ML-G10+ Assembled in USA Clearance

Rated Power Output 410 W
Voltage (VOC)45.37 V
Number of cells132
Cell TypeMonocrystalline

By Items

Seraphim 410W Solar Panel 108 Cell Bifacial SRP-410-BMD-HV Clearance

Rated Power Output 410 W
Voltage (VOC)37.32 V
Number of cells108
Cell TypeMonocrystalline

Peimar 450W Solar Panel 120 Cell All-Black DR10H450M Clearance

Rated Power Output 450 W
Voltage (VOC)41.18 V
Number of cells120
Cell TypeMonocrystalline

Canadian Solar 455W Solar Panel 108 Cell All-Black CS6.1-54TM-455H Clearance

Rated Power Output 455 W
Voltage (VOC)39.1 V
Number of cells108
Cell TypeMonocrystalline

LONGi 405W Solar Panel 108 Cell All-Black LR5-54HPB-405M

Rated Power Output 405 W
Voltage (VOC)37.15 V
Number of cells108
Cell TypeMonocrystalline

JA Solar 405W Solar Panel 108 Cells JAM54S31-405/MR Clearance

Rated Power Output 405 W
Voltage (VOC)37.23 V
Number of cells108
Cell TypeMonocrystalline

Pickup on Mon, Feb 2 from Orlando, FL

Phono Solar 440W Solar Panel 108 Cells Bifacial PS440M8GFH-18/VNHB Clearance

Rated Power Output 440 W
Voltage (VOC)39.61 V
Number of cells108
Cell TypeMonocrystalline

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 TypeMonocrystalline

Customer Choice

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 TypeMonocrystalline

JA Solar 445W Solar Panel 156 Cell JAM78S10-445/MR Clearance

Rated Power Output 445 W
Voltage (VOC)53.31 V
Number of cells156
Cell TypeMonocrystalline

Sunpro Power 440W Solar Panel 108 Cell All-Black Bifacial SM SP-440/108/FS30/BF

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

Customer Choice

JA Solar 440W Solar Panel 156 Cell JAM78S10-440/MR Clearance

Rated Power Output 440 W
Voltage (VOC)53 V
Number of cells156
Cell TypeMonocrystalline

Jinko Solar 430W Solar Panel 108 Cell All-Black JKM430N-54HL4-B Clearance

Rated Power Output 430 W
Voltage (VOC)39.16 V
Number of cells108
Cell TypeMonocrystalline

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 TypeMonocrystalline

Pickup on Mon, Feb 2 from Orlando, FL

Q CELLS 410W Solar Panel 132 Cell Q.PEAK DUO BLK ML-G10+ Assembled in USA Clearance

Rated Power Output 410 W
Voltage (VOC)45.37 V
Number of cells132
Cell TypeMonocrystalline

Jinko 410W Solar Panel 144 Cell JKM410M-72HL-V

Rated Power Output 410 W
Voltage (VOC)50.4 V
Number of cells144
Cell TypeMonocrystalline

Top sellers

Sunpro Power 440W Solar Panel 108 Cell All-Black Bifacial SM SP-440/108/FS30/BF

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

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 TypeMonocrystalline

Pickup on Mon, Feb 2 from Orlando, FL

Jinko 410W Solar Panel 144 Cell JKM410M-72HL-V

Rated Power Output 410 W
Voltage (VOC)50.4 V
Number of cells144
Cell TypeMonocrystalline

By Pallets

= 36

Regitec 415W Solar Panel 108 Cell RMH54/415B1 Wholesale 36 panels per pallet

Rated Power Output 415 W
Voltage (VOC)37.45 V
Number of cells108
Cell TypeMonocrystalline

= 36

Regitec 430W Solar Panel 108 Cell All-Black Bifacial RMHT54/430AB2 Wholesale 36 panels per pallet

Rated Power Output 430 W
Voltage (VOC)38.49 V
Number of cells108
Cell TypeMonocrystalline

= 36

ZNShine Solar 410W Solar Panel 108 Cell ZXM7-SH108-410 Wholesale 36 panels per pallet

Rated Power Output 410 W
Voltage (VOC)37.5 V
Number of cells108
Cell TypeMonocrystalline

Customer Choice

= 37

Philadelphia Solar 450W Solar Panels 108 Cell Bifacial MNB108(HCBF)-450W Wholesale 37 panels per pallet

Rated Power Output 450 W
Voltage (VOC)38.84 V
Number of cells108
Cell TypeMonocrystalline

= 31

GreenWatts 450W Solar Panel 144 Cell Bifacial HT72-166M-450W Wholesale 31 panels per pallet

Rated Power Output 450 W
Voltage (VOC)50 V
Number of cells144
Cell TypeMonocrystalline

By Truckload

= 936

ZNShine Solar 410W Solar Panel 108 Cell ZXM7-SH108-410 Commercial 936 panels per Container (Truckload)

Rated Power Output 410 W
Voltage (VOC)37.5 V
Number of cells108
Cell TypeMonocrystalline

Ready to ship on Feb 03–06

= 936

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 TypeMonocrystalline

Ready to ship on Jan 30 – Feb 04

= 792

Trina 420W Solar Panel 144 Cell Bifacial TRI-TSM-420-NE09RC05 Commercial 792 panels per Container (Truckload)

Rated Power Output 420 W
Voltage (VOC)50.9 V
Number of cells144
Cell TypeMonocrystalline

Ready to ship on Feb 03–06

= 936

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 TypeMonocrystalline

Ready to ship on Feb 03–06

= 726

GreenWatts 450W Solar Panel 144 Cell Bifacial HT72-166M-450W Commercial 726 panels per Container (Truckload)

Rated Power Output 450 W
Voltage (VOC)50 V
Number of cells144
Cell TypeMonocrystalline

Ready to ship on Jan 30 – Feb 04

Overview
Articles

400 Watt Solar Panels

400-450 watt solar panels deliver high efficiency in a compact form, ideal for homeowners, cottage owners, and small business operators building medium-sized systems of 5-15 kW. These panels balance upfront costs with long-term energy yield, targeting above-average income users in the USA prioritizing reliability and performance.

⚡ Quick Overview: Panels in the 400-450W range generate 1.5-2.0 kWh daily under average US conditions, making them perfect for roofs of 800-2000 sq ft homes or small commercial spaces. Their 108-144 cell monocrystalline design achieves 20-22% efficiency, outperforming older 300W models in space-constrained installations.

What Makes 400-450W Panels Right for Your Setup?

These panels suit medium-sized systems because they scale efficiently without requiring excessive roof space. Homeowners can offset 30-50% of electricity bills, cottage owners ensure reliable off-grid backup, and businesses cut peak demand charges effectively.

🏠 Homeowners

Perfect for 800-2000 sq ft homes looking to offset utility bills without covering the entire roof

🏕️ Cottage Owners

Ideal for off-grid backup systems with reliable performance in variable weather conditions

🏢 Small Businesses

Excellent for reducing peak demand charges while maintaining compact commercial installations

Performance Across US Climates

Production varies significantly by location and insolation levels. Understanding your regional solar potential is crucial for accurate system sizing and ROI calculations.

Region	Daily Production (per panel)	Annual kWh (400W)	Key Factors
Southwest (AZ, NM, NV)	2.0 kWh/day	730 kWh	Excellent sun, minimal clouds
Midwest (IL, OH, IN)	1.6 kWh/day	584 kWh	Moderate sun, seasonal variation
Northeast (NY, MA, PA)	1.4 kWh/day	511 kWh	Lower winter output, good summer
Pacific Northwest (WA, OR)	1.3 kWh/day	475 kWh	Diffuse light, PERC tech helps

Expert Tip 1

Pair 400W panels with MPPT charge controllers to boost yield by 20-30% over PWM in partial shade—essential for cottage roofs with trees or business arrays near HVAC units. The investment in MPPT technology pays for itself within 2-3 years through increased energy production.

— Solar Industry Expert

Top 400-450W Panel Comparison

Current models available from A1 SolarStore offer diverse options across efficiency, pricing, and warranty tiers. This comparison focuses on real-world availability and pricing as of January 2026.

Model	Wattage	Efficiency	Voc (V)	Cells	Price Range	Warranty	Best For
JA Solar JAM72S10-410/MR	410W	20.7%	50.12	144	$137 (Clearance)	12/25 yr	Budget clearance
LONGi LR5-54HPB-410M	410W	21.2%	37.4	108	$202	12/25 yr	All-black aesthetics
ZNShine ZXM7-SH108-410	410W	20.4%	37.5	108	$0.32-$0.36/W	12/25 yr	Wholesale/Commercial
Regitec RMH54/415B1	415W	20.6%	37.45	108	$0.27/W	12/25 yr	Value wholesale
Regitec RMHT54/430AB2	430W	21.0%	38.49	108	$0.28-$0.29/W	12/25 yr	Bifacial all-black
JA Solar JAM78S10-440/MR	440W	21.3%	53.0	156	$241 (Clearance)	12/25 yr	High efficiency clearance
JA Solar JAM78S10-445/MR	445W	21.5%	53.31	156	$224 (Clearance)	12/25 yr	Premium clearance
GreenWatts HT72-166M-450W	450W	20.8%	50.0	144	$0.37/W	12/25 yr	Bifacial budget
CW Energy CWT450-108TNFB10	450W	21.7%	39.31	108	$0.34-$0.39/W	12/25 yr	USA-made, IRA credits

💡 Current Availability: Clearance models offer significant savings but limited stock. Wholesale options (pallets of 31-36 panels) and commercial containers (620-936 panels) provide the best per-watt pricing for larger projects.

Real Cost of 400-450W Panel Systems

Understanding total system costs beyond panel pricing is essential for accurate budgeting. Here's a breakdown of typical medium-sized installation expenses:

Single Panel Costs

Clearance retail: $137-$241 per panel
Wholesale pricing: $0.27-$0.39 per watt
Commercial bulk: $0.25-$0.34 per watt
Premium US-made: $0.34-$0.39 per watt

Complete System (10-panel, 4kW)

Panels: $1,400-$2,400
Racking: $800 ($0.20/W)
Inverter: $1,200 ($0.30/W)
Labor & permits: $2,600-$5,600
Total pre-incentive: $6,000-$10,000

🇺🇸 US-Made Advantage: CW Energy panels assembled in the USA qualify for additional IRA manufacturing credits, reducing effective cost by up to 30% beyond the standard Investment Tax Credit. Combined savings can drop installed costs to $0.70/W for qualifying projects.

ROI Calculator for 400-450W Systems

Calculating return on investment helps justify the upfront expense and plan financing. Use this framework to estimate your specific payback period:

How do I calculate payback period?

Formula: Payback Period = Net System Cost ÷ Annual Savings

Example (10-panel 4kW system in Arizona):

Gross cost: $8,000
30% ITC credit: -$2,400
Net cost: $5,600
Annual production: 7,300 kWh
Utility rate: $0.15/kWh
Annual savings: $1,095
Payback: 5.1 years

What affects ROI calculations?

Positive factors:

Higher local electricity rates (faster payback)
State/utility rebates beyond federal ITC
MACRS depreciation for businesses (26% first year)
Net metering policies with 1:1 credit
Battery backup avoiding demand charges

Negative factors:

Poor net metering policies
High financing interest rates
Excessive shading reducing output
Installation delays increasing soft costs

Expert Tip 2

Size arrays at 120% of peak load for cottages—e.g., 12 panels for 4kW demand—to handle surges without clipping losses. This oversizing prevents inverter saturation during optimal production hours and extends equipment lifespan by reducing thermal stress.

— Solar Industry Expert

25-Year Financial Projection

Year	Production (kWh)	Savings @ $0.15/kWh	Cumulative Savings	Panel Degradation
1-5	7,300/yr	$1,095/yr	$5,475	0.4%/yr
6-10	7,156/yr	$1,073/yr	$10,840	0.4%/yr
11-15	7,014/yr	$1,052/yr	$16,100	0.4%/yr
16-20	6,874/yr	$1,031/yr	$21,255	0.4%/yr
21-25	6,736/yr	$1,010/yr	$26,305	0.4%/yr
Net Profit (minus $5,600 cost)			$20,705	~370% ROI

400-450W vs. Higher Wattage Panels: Trade-offs

Comparing panel sizes helps determine the optimal configuration for your specific roof and energy needs.

Aspect	400-450W Panels	500-600W Panels
Roof Space Required	20-25 sq ft/panel	25-30 sq ft/panel
Average Cost/Watt	$0.27-$0.40	$0.25-$0.35
10kW System Panel Count	22-25 panels	17-20 panels
10kW System Cost	$7,000-$10,000	$8,500-$9,500
Shading Tolerance	Good (half-cut cells)	Better (multi-busbar)
Installation Complexity	Simpler racking, lighter weight	Heavier, requires reinforced mounts
Best Application	Residential roofs, modular systems	Commercial, ground-mount

✅ Winner for Medium Installs: 400-450W panels win for modular residential and small commercial systems, avoiding oversized panel fragility while maintaining excellent efficiency. They're easier to handle during installation and provide more layout flexibility on complex roof geometries.

Ready to Start Your Solar Journey?

A1 SolarStore offers the widest selection of 400-450W panels with expert guidance and competitive wholesale pricing. Whether you're building a residential system, upgrading a cottage, or installing commercial arrays, our team helps you select the optimal panels for your specific needs and budget.

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