The French food retailer Casino Group, and its renewable energy subsidiary GreenYellow, have signed another deal with SunPower Corporation (NASDAQ:SPWRA, SPWRB) to buy 20 megawatts (MW) of solar panels from the San Jose, California-based manufacturer. According to the press release, the panels in question are SunPower's E19 solar panels, which are said to offer a world record efficiency of 19 percent.
SunPower Corporation (NASDAQ:SPWRA) earned international recognition last week when six of 17 universities competing in Solar Decathlon Europe chose to use the company's high-efficiency solar panels. The solar home-building competition began on Friday and will be held through June 27 in Madrid, Spain.
It's increasingly evident that U.S. homebuilders are piling into solar energy for the long haul.