SunPower Corp. has produced a full-scale solar cell with a sunlight to electricity conversion efficiency of 24.2 percent at its manufacturing plant in the Philippines. This is a new world record for large area silicon wafers, and has been confirmed by the U.S. Department of Energy's National Renewable Energy Lab (NREL).

SunPower also announced that has reached a deal with French retailer Casino Group for the supply of 20 megawatts (MW) of solar photovoltaic panels for solar power installations on Casino Group properties in mainland France.