Colorado’s policies and programs that advance smart energy use helped it climb to seventh in the nation for energy efficiency, according to the American Council for an Energy-Efficient Economy’s 2025 State Energy Efficiency Scorecard.

Colorado is also among the most improved states since the last scorecard in 2022, jumping six spots in the rankings. ACEEE noted Colorado’s significant progress in the transportation sector, which included adopting clean vehicle and truck standards that make more zero-emission vehicles available to Coloradans. The report also mentions Colorado’s appliance-efficiency standards, building performance standards for large buildings, and first-in-the-nation clean heat standards for regulated gas utilities as key improvements.

“Our improvement in these rankings highlights Colorado’s national leadership in energy efficiency and clean energy,” said Colorado Energy Office Executive Director Will Toor. “We are committed to pursuing innovative strategies to achieve net-zero emissions in Colorado by 2050, while saving Coloradans money on energy costs, improving air quality and creating new economic opportunities and good-paying jobs across the state.”

In addition to the State Energy Efficiency Scorecard, the ACEEE also ranked Colorado third in its 2023 State Transportation Electrification Scorecard. Colorado currently leads the nation in electric-vehicle sales, with EVs making up 31.5 percent of new car sales in the last quarter of 2024.