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Table of Contents

Daniel S. Young

Insurance Content Managing Editor

Daniel S. Young began his professional career as chief editor of The Chanticleer, a Jacksonville State University newspaper. He also contributed to The Anniston Star, a local newspaper in Alabama. Daniel holds a BA in Communication and is pursuing an MA in Journalism & Media Studies at the University of Alabama. With a strong desire to help others protect their investments, Daniel has writt...

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Joel Ohman

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Joel Ohman is the CEO of a private equity backed digital media company. He is a CERTIFIED FINANCIAL PLANNER™, author, angel investor, and serial entrepreneur who loves creating new things, whether books or businesses. He has also previously served as the founder and resident CFP® of a national insurance agency, Real Time Health Quotes. He has an MBA from the University of South Florida. Joel...

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Updated July 2021

The Best Solar Panels 

From cost to efficiency to ratings, Quote.com’s best solar panels shows you everything you need to compare panels from the top solar manufacturers. Use our comparisons to research and learn which solar panels are best for your needs.


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AVERAGE DAILY SOLAR RESOURCE

 
 

Mouse over the map below to explore the country and see how much power your area could generate each day with a solar installation.

Interact with the map below to explore the country and see how much power your area could generate each day with a solar installation.
 

Legend

300 – 350
350 – 400
400 – 450
450 – 500
500 – 550
550 – 600
600 – 650

LOWEST TOTAL COST, BY MANUFACTURER

AU Optronics

$20,682.72

Average Efficiency: 17.93%

Average kW: 5.09 kW

Average Warranty: 10 years

Rating: N/A

Chint Solar (Zhejiang)

$26,886.63

Average Efficiency: 15.28%

Average kW: 6.34 kW

Average Warranty: 10 years

Rating: N/A

LG Electronics Solar Cell Division

$30,051.95

Average Efficiency: 19.65%

Average kW: 7.14 kW

Average Warranty: 12 years

Rating: 4.96 Stars

 
 

REC Solar

$31,057.93

Average Efficiency: 17.25%

Average kW: 9.07 kW

Average Warranty: 10 years

Rating: 4.81 Stars

 
 

Westinghouse Solar

$31,247.21

Average Efficiency: 14.05%

Average kW: 5.16 kW

Average Warranty: 10 years

Rating: N/A

LOWEST COST PER WATT, BY MANUFACTURER

Hanwha Q CELLS

$3.38 per Watt

Average Efficiency: 18.13%

Average kW: 9.47 kW

Average Warranty: 12 years

Rating: 5 Stars

 
 

REC Solar

$3.59 per Watt

Average Efficiency: 17.25%

Average kW: 9.07 kW

Average Warranty: 10 years

Rating: 4.81 Stars

 
 

AU Optronics

$3.93 per Watt

Average Efficiency: 17.93%

Average kW: 5.09 kW

Average Warranty: 10 years

Rating: N/A

Hyundai Heavy Industries

$3.94 per Watt

Average Efficiency: 15.95%

Average kW: 10.62 kW

Average Warranty: 10 years

Rating: 4.86 Stars

 
 

Suniva

$4.05 per Watt

Average Efficiency: 16.68%

Average kW: 10.09 kW

Average Warranty: 12 years

Rating: 4.82 Stars

 
 

HIGHEST AVERAGE ANNUAL ENERGY PRODUCTION

Hyundai Heavy Industries

10,541 kW

Average Efficiency: 15.95%

Average kW: 10.62 kW

Average Warranty: 10 years

Rating: 4.86 Stars

 
 

SunPower

10,516 kW

Average Efficiency: N/A

Average kW: 6.27 kW

Average Warranty: N/A

Rating: 4.76 Stars

 
 

Changzhou Trina Solar

10,061 kW

Average Efficiency: 17.98%

Average kW: 9.59 kW

Average Warranty: 10 years

Rating: 4.89 Stars

 
 

Chint Solar (Zhejiang)

9,876 kW

Average Efficiency: 15.28%

Average kW: 6.34 kW

Average Warranty: 10 years

Rating: N/A

Hanwha Q CELLS

9,802 kW

Average Efficiency: 18.13%

Average kW: 9.47 kW

Average Warranty: 12 years

Rating: 5 Stars

 
 

HIGHEST AVERAGE KW SYSTEMS, BY MANUFACTURER

Suntech Power

15.45 kW

Average Efficiency: 17.76%

Average Rebate: 38.6%

Average Warranty: 12 years

Rating: N/A

Hyundai Heavy Industries

10.62 kW

Average Efficiency: 15.95%

Average Rebate: 15.4%

Average Warranty: 10 years

Rating: 4.86 Stars

 
 

Suniva

10.09 kW

Average Efficiency: 16.68%

Average Rebate: 16%

Average Warranty: 12 years

Rating: 4.82 Stars

 
 

SolarWorld

9.65 kW

Average Efficiency: 17.44%

Average Rebate: 14.7%

Average Warranty: 20 years

Rating: 4.94 Stars

 
 

Changzhou Trina Solar

9.59 kW

Average Efficiency: 17.98%

Average Rebate: 4.3%

Average Warranty: 10 years

Rating: 4.89 Stars

 
 

LOWEST AVERAGE kW SYSTEMS, BY MANUFACTURER

Open Energy

4.81 kW

Average Efficiency: N/A

Average Rebate: 19.2%

Average Warranty: N/A

Rating: N/A

AU Optronics

5.09 kW

Average Efficiency: 17.93%

Average Rebate: 14%

Average Warranty: 10 years

Rating: N/A

Westinghouse Solar

5.16 kW

Average Efficiency: 14.05%

Average Rebate: 13.3%

Average Warranty: 10 years

Rating: N/A

Andalay Solar

5.31 kW

Average Efficiency: 15.3%

Average Rebate: 18.3%

Average Warranty: N/A

Rating: N/A

Yes! Solar

5.35 kW

Average Efficiency: N/A

Average Rebate: 14.1%

Average Warranty: N/A

Rating: N/A

BEST REBATES (% OF TOTAL COST), BY MANUFACTURER

GE Energy

41.4%

Average Efficiency: N/A

Average kW: 7.08 kW

Average Warranty: N/A

Rating: N/A

Suntech Power

38.6%

Average Efficiency: 17.76%

Average kW: 15.45 kW

Average Warranty: 12 years

Rating: N/A

Sharp

21.9%

Average Efficiency: N/A

Average kW: 5.54 kW

Average Warranty: N/A

Rating: 4.73 Stars

 
 

Schuco USA

20.8%

Average Efficiency: N/A

Average kW: 6.44 kW

Average Warranty: N/A

Rating: 4.69 Stars

 
 

Chint Solar (Zhejiang)

20.4%

Average Efficiency: 15.28%

Average kW: 6.34 kW

Average Warranty: 10 years

Rating: N/A

LONGEST AVERAGE WARRANTY, BY MANUFACTURER

SolarWorld

20 years

Average Efficiency: 17.44%

Average kW: 9.65 kW

Average Rebate: 14.7%

Rating: 4.94 Stars

 
 

LG Electronics Solar Cell Division

12 years

Average Efficiency: 19.65%

Average kW: 7.14 kW

Average Rebate: 10.6%

Rating: 4.96 Stars

 
 

Hanwha Q CELLS

12 years

Average Efficiency: 18.13%

Average kW: 9.47 kW

Average Rebate: 4.7%

Rating: 5 Stars

 
 

Suniva

12 years

Average Efficiency: 16.68%

Average kW: 10.09 kW

Average Rebate: 16%

Rating: 4.82 Stars

 
 

Suntech Power

12 years

Average Efficiency: 17.76%

Average kW: 15.45 kW

Average Rebate: 38.6%

Rating: N/A

HIGHEST AVERAGE EFFICIENCY, BY MANUFACTURER

LG Electronics Solar Cell Division

19.65%

Average Rebate: 10.6%

Average kW: 7.14 kW

Average Warranty: 12 years

Rating: 4.96 Stars

 
 

Hanwha Q CELLS

18.13%

Average Rebate: 4.7%

Average kW: 9.47 kW

Average Warranty: 12 years

Rating: 5 Stars

 
 

Changzhou Trina Solar

17.98%

Average Rebate: 4.3%

Average kW: 9.59 kW

Average Warranty: 10 years

Rating: 4.89 Stars

 
 

AU Optronics

17.93%

Average Rebate: 14%

Average kW: 5.09 kW

Average Warranty: 10 years

Rating: N/A

Suntech Power

17.76%

Average Rebate: 38.6%

Average kW: 15.45 kW

Average Warranty: 12 years

Rating: N/A

MOST COMMONLY INSTALLED MANUFACTURERS

SunPower

8.57%

Average Efficiency: N/A

Average kW: 6.27 kW

Average Warranty: N/A

Rating: 4.76 Stars

 
 

Canadian Solar

5.02%

Average Efficiency: 17.48%

Average kW: 6.17 kW

Average Warranty: 10 years

Rating: 4.82 Stars

 
 

Sharp

2.54%

Average Efficiency: N/A

Average kW: 5.54 kW

Average Warranty: N/A

Rating: 4.73 Stars

 
 

LG Electronics Solar Cell Division

1.25%

Average Efficiency: 19.65%

Average kW: 7.14 kW

Average Warranty: 12 years

Rating: 4.96 Stars

 
 

AU Optronics

0.68%

Average Efficiency: 17.93%

Average kW: 5.09 kW

Average Warranty: 10 years

Rating: N/A

HIGHEST RATED MANUFACTURERS

Hanwha Q CELLS

5.0 Stars

 
 

Average Efficiency: 18.13%

Average kW: 9.47 kW

Average Warranty: 12 years

Rebate: 4.7%

Phono Solar Technology

5.0 Stars

 
 

Average Efficiency: N/A

Average kW: 7.44 kW

Average Warranty: N/A

Rebate: 15.8%

LG Electronics Solar Cell Division

5.0 Stars

 
 

Average Efficiency: 19.65%

Average kW: 7.14 kW

Average Warranty: 12 years

Rebate: 10.6%

SolarWorld

4.9 Stars

 
 

Average Efficiency: 17.44%

Average kW: 9.65 kW

Average Warranty: 20 years

Rebate: 14.7%

Changzhou Trina Solar

4.9 Stars

 
 

Average Efficiency: 17.98%

Average kW: 9.59 kW

Average Warranty: 10 years

Rebate: 4.3%

Note: includes companies with at least 10 customer reviews

THINNEST AVERAGE PANELS, BY MANUFACTURER

Changzhou Trina Solar

1.24 in

Average Efficiency: 17.98%

Average kW: 9.59 kW

Average Warranty: 10 years

Rating: 4.89 Stars

 
 

Canadian Solar

1.29 in

Average Efficiency: 17.48%

Average kW: 6.17 kW

Average Warranty: 10 years

Rating: 4.82 Stars

 
 

SolarWorld

1.30 in

Average Efficiency: 17.44%

Average kW: 9.65 kW

Average Warranty: 20 years

Rating: 4.94 Stars

 
 

Hanwha Q CELLS

1.32 in

Average Efficiency: 18.13%

Average kW: 9.47 kW

Average Warranty: 12 years

Rating: 5 Stars

 
 

Kyocera Solar

1.42 in

Average Efficiency: N/A

Average kW: 8.67 kW

Average Warranty: 10 years

Rating: 4.79 Stars

 
 

AVERAGE INSTALLATION SURFACE AREA, BY MANUFACTURER

Helios USA

21.06 ft2

Average Efficiency: 15.34%

Average kW: 6.72 kW

Average Warranty: 10 years

Rating: N/A

Changzhou Trina Solar

20.95 ft2

Average Efficiency: 17.98%

Average kW: 9.59 kW

Average Warranty: 10 years

Rating: 4.89 Stars

 
 

SolarWorld

19.76 ft2

Average Efficiency: 17.44%

Average kW: 9.65 kW

Average Warranty: 20 years

Rating: 4.94 Stars

 
 

Yingli Green Energy

19.25 ft2

Average Efficiency: 16.85%

Average kW: 9.56 kW

Average Warranty: 10 years

Rating: N/A

Canadian Solar

19.17 ft2

Average Efficiency: 17.48%

Average kW: 6.17 kW

Average Warranty: 10 years

Rating: 4.82 Stars

 
 

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