The institute operates a 12.5-megawatt cogeneration plant and a 50-kilowatt micro-turbine. An active energy conservation program includes motion sensors in all new construction and retrofits, and a cool roof re-roofing program. Caltech, in conjunction with the city of Pasadena, participates in an energy-efficient appliance replacement program. Additionally, the institute is installing a 230-kilowatt solar energy facility that will be the largest in Pasadena, to be operational in February 2008. No institutional policies addressing climate change have been adopted to date.