Marquette participates in the State of Wisconsin’s Focus on Energy Program. As a result of investing $7 million in efficiency improvements over the past few years, the university has reduced its annual energy use by the equivalency of 1,547,000 kilowatt-hours and annual energy costs by $350,000. Specific initiatives include replacing 40-watt fluorescent lighting tubes with 34-watt tubes and increasing the efficiency of HVAC systems. Marquette has not, however, made a formal commitment to reduce carbon emissions, nor has it purchased or made investments in renewable energy.