June 25, 2013
sunpowercorp.com
SunPower’s new X-Series modules for residential rooftops offer 21.5 percent efficiency, validated by NREL.
The series uses third-generation Maxeon solar cells, built on a solid copper foundation, making them virtually impervious to the corrosion and cracking that typically degrade conventional panels.
SunPower solar panels are backed by the industry’s first combined 25-year product and power warranty.