Colorado State has completed a series of energy efficiency projects, including lighting upgrades, HVAC retrocommissions, and systems tune-ups. Through the Green is Gold campaign, the university encourages students and employees to follow tips on the sustainability website and use online, energy-use monitoring tools to conserve water and energy. At peak output, a turbine generator powered by waste steam can provide up to 5 percent of the campus's electrical needs. In addition, the university purchases wind power to offset 4 percent of electricity use.