SunPower Corporation

Primary Lines of Business

  • Financing Company

  • Product Manufacturer

SunPower Corporation Reviews

Primary Lines of Business

  • Financing Company

  • Product Manufacturer

Additional Services Offered

Additional Services Offered

  • Installation
  • Financing
  • Manufacturing

Why Work With Us

Why Work With Us

We believe in the promise of the sun.

It is the most abundant, most liberating energy source of all.

We believe the sun belongs to everyone.
We’re committed to unlocking its vast energy so all of us can enjoy the freedom it provides.

We believe that quality matters.
Since 1985, we’ve created the very best solar solutions in the world – and set a few records along the way.

We believe in changing the way our world is powered.
For our kids. For the planet. Forever.

More About Us

More About Us

Since 1985 SunPower has been leading global solar innovation. SunPower solar panels consistently deliver more energy and long-term peace of mind with the highest performing solar power systems available. SunPower is the solar energy choice of more homeowners and businesses around the world.

* Global headquarters based in Silicon Valley since 1985
* Total solar energy generated >18,000,000 MWh
* Diversified global portfolio leading residential, commercial and utility solar energy markets
* World's highest efficiency solar panels featuring SunPower Maxeon cell technology
* More than 200 patents for solar technology

Technology Offered

Technology Offered
  • Solar PV

Product Manufacturer Ratings by EnergySage

Product Manufacturer Ratings by EnergySage
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  • Overall Rating:  Premium Plus

    • Better than industry average performance, quality, and durability specifications

    • Better than industry average warranty coverage

  • Warranty Rating:  Premium Plus

    • Premium-level performance output and materials warranties

  • Performance Quality Durability Rating:  Premium Plus

    • Efficiency: The majority of SunPower's panel models operate far above the industry average efficiency range

    • Power output: SunPower's internal testing indicates that their panels are capable of producing at least as much power as their power output ratings

    • Temperature sensitivity: All of SunPower's panel models are less sensitive to high temperatures than the industry average

    • Quality manufacturing standards: Compliant

    • Durability standards: Compliant

    • Snow & wind load: Snow load ratings are at industry average; wind load ratings are below industry average

Product Manufacturing Details

Product Manufacturing Details
  • Current Models And Output

    X21-335-BLK (335 Watt panel, All Black), X21-345, E20-327

  • Product Technology


  • Efficiency

    20.4% - 21.5% Efficiency

  • Product warranty duration

    25 Years

  • What's Covered in Product Warranty

    SunPower Corp.'s product warranty covers defects in materials or workmanship under normal application, installations, and use and service conditions. SunPower will repair, replace, or refund the defective PV Modules within the terms listed in warranty.

  • Product performance warranty

    At the end of 25 Years power output should be no less than 87%.

  • What's covered in performance warranty

    SunPower Corp.'s performance warranty covers the output efficiency of your solar system. After a period of 5 (five) years output should be no less than 95%. After a period of 25 (twenty-five) years output should be no less than 87%. If output is reduced to less than 95% in 5 years or less than 87% in 25 years SunPower will repair, replace (new or refurbished) or refund the defective PV Modules.

  • Where Manufactured?

    USA, Philippines

  • Corporate/Ownership Structure

    Privately held; Total, S.A., owns 65% of SunPower. Total is a French multinational integrated oil and gas company and one of the six "Supermajor" oil companies in the world

Case Studies

Case Studies

Reviews from Our Community

Reviews from Our Community
1 Review
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"Great panels but expen$ive"
Reviewed Sep 27, 2016
"Great panels but expen$ive"

I think it's clear Sunpower makes the best solar panels, but you pay a price for them. My prediction is that the technology will keep getting better, and in 10-15 years you may want to upgrade your system anyway, so why would you pay a lot for premium panels with ...

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