Best Solar Performance in Real-World Conditions

• SunPower panels outperform others early in the morning, late in the day, and on cloudy days.
• They effectively absorb different wavelengths of light to generate more electricity.
• They perform better at high temperatures than others. Because they're more efficient at converting light into electricity (and not heat), the hotter it gets outside, the better they perform compared to the competition.
• They maintain efficiency during initial break-in. Most panels lose 3% efficiency when first exposed to sunlight. Not SunPower.

Solar Performance Beyond 25 Years

Your SunPower solar panels come with a 25-year warranty. But we don’t think you’ll need it because SunPower solar panels are designed to last longer than that. With our well-trained solar installers, 24/7 monitoring and around-the-clock service, we’re there for you. Which may be why we have more solar energy customers—and repeat customers—than any other solar power company in the world. Bottom line? SunPower is the best solar investment you can make.