• SunPower VS. Panasonic Solar Panels

    A comparison of efficiency and warranties of SunPower and Panasonic solar panels.

  • Panasonic Composite System

  • Company

  • Silicon Valley, CA. Headquarters

    100% focus on solar

    Backed by Total S.A., a $128 billion public energy company

  • Kadoma, Japan Headquarters

    Primary focus on appliances and automotive products $67 billion public company.

  • System

  • 100% SunPower

    The SunPower Equinox™ system is designed and engineered by one company to work together, with a single comprehensive warranty and a suite of financial products.

  • Panasonic Panels Only

    Other components required
    Complete system requires
    inverters, racking and monitoring
    No Panasonic financing products

  • Warranty

  • SunPower Complete Confidence Warranty

    Our warranty is the only warranty to cover your whole system (not just the panels).

    Complete System 
    SunPower covers both product quality and power production of your entire system.

    Complete Service
    It’s the best warranty you may never have to use. But if you do, we make it simple and quic

  • Panel-Only

    Shipping (old and new product) and installation
    not included

    Excludes damage from rust or ocean spray
    Requires proof of qualified purchase and installation
    Excludes damage from component non-compatibility

    System components (3+ pass-through) warranties

    Inverter manufacturer—terms vary
    Racking manufacturer—terms vary
    Monitoring manufacturer—terms vary

  • Performance and Reliability

  • Most efficient solar panels on the market, up to 24.1%

    Hot and humid environments
    0.3% power loss per year

  • Module efficiency up to 19.7%

    Hot and humid environments
    1.24% power loss per year2

  • Sustainability

  • #1 Solar Scorecard by Silicon Valley Toxics Coalition

    97/100 points total

    10/10 points for Supply Chain

    18/20 points for Extended Producer Responsibility

    Panels comply with guidelines to eliminate toxic materials

    Member of the U.S. Green Building Council

  • Solar Scorecard by Silicon Valley Toxics Coalition

    50/100 points total

    1/10 points for Supply Chain

    2/20 points for Extended Producer Responsibility