• SunPower VS. LG Solar Panels

    A comparison of efficiency and warranties of SunPower and LG panels.

  • LG-based Composite System

  • Company

  • Silicon Valley, CA. Headquarters

    100% focus on solar

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

  • Seoul, Korea Headquarters

    Primary focus on home entertainment and appliances $48 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.

  • LG Panels Only

    Other components required Complete system requires inverters, racking and monitoring No LG 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 quick.

  • Panel Warranty (LG Pass through)

    12- to 25-year coverage, depending on panel Shipping and labor not included
    Excludes rust damage
    Requires original sales receipt

    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%.1

    0% power loss from hot and cold cycling
    After 800 temp. cycles (−40°F to 185°F)
    2% power loss in humidity

    2% Loss in Humidity
    After 4,000 hours damp heat (185°F / 85% RH)

  • Module efficiency up to 21.1%

    2.5% power loss from hot and cold cycling
    After 800 temp. cycles (−40°F to 185°F)

    20% power loss in humidity
    After 4,000 hours damp heat (185°F / 85% RH)

  • Sustainability

  • #1 Solar Scorecard by Silicon Valley Toxics Coalition

    97/100 points total

    10/10 points for Panel Toxicity

    10/10 points for Emissions Transparency

    Panels comply with guidelines to eliminate toxic materials
    Member of the U.S. Green Building Council

  • Solar Scorecard by Silicon Valley Toxics Coalition

    62/100 points total

    0/10 points for Module Toxicity

    0/10 points for Emissions Transparency