SunPower™ Solar Panels
What does this mean for you? Highly efficient solar panels from SunPower generate more energy over the lifetime of your system than other panels. Compared to other solar panels, SunPower converts the greatest percentage of sunlight into energy. This means that over the lifetime of your system, you'll generate more electricity.
SunPower™ solar panels perform better in hot climates
SunPower panels offer the lowest yearly degradation rate
SunPower modules have been shown by third-party testing* to degrade at -0.1%/year, although SunPower recommends a more conservative -0.25%/year for economic calculations, while major thin film panels show an average of -1.5%/year of degradation.
The degradation rate of standard cells has been well documented over several years while thin film is a relatively new technology, with less than 10 years of manufacturing and field experience: thin film degradation is not yet well understood.
(*source: National Renewable Energy Laboratory, Dec 2011)
SunPower™ E20 Series*
The E20 Series integrates SunPower™ Maxeon™ technology with our larger high efficiency solar cells and a patented, anti-reflective coating to increase sunlight absorption. For this series, only the highest reliability materials are utilized to facilitate greater light transmission and to consistently deliver the exact power needed, or more.
SunPower E20 / 327 Solar Panel Datasheet (PDF)