A new array of solar panels installed at CU-Boulder has doubled solar power production on campus to about 1,000 kilowatt-hours of energy, enough to power about 200 average-sized houses. The installation will help CU-Boulder power the campus, reduce energy costs and work toward carbon neutrality, as well as meet Colorado Amendment 37 requirements. Colorado Amendment 37 was passed by voters in 2004 to mandate 20 percent use of renewable energy statewide by 2020.