UPS’s initial venture into solar power development dates back to 2004 in Palm Springs, California, where solar panels were installed and are still generating approximately 110 kilowatts of sustainable energy. Since 2010, at UPS’s European regional air hub in Cologne, Germany, the company has operated a rooftop solar farm that was commissioned by the airport and is producing 1.2 million kilowatt hours of electricity per year. In 2011, UPS completed the installation of a 250 kilowatt system on the roof of its Lakewood, NJ distribution facility.