This eleventh edition of the ACEEE State Energy Efficiency Scorecard again benchmarks state progress on efficiency policies and programs that save energy while benefiting the environment and promoting growth. We use data vetted by state energy officials to rank states in six categories—utility programs, transportation, building energy codes, combined heat and power, state initiatives, and appliance standards.Top finishers in this year’s Scorecard include Massachusetts, California, Rhode Island, Vermont, and Oregon. The most-improved states are Idaho, Florida, and Virginia. The Scorecard shows that energy efficiency is a key resource in these states and others, with utilities spending approximately $7.6 billion in 2016 for efficiency programs nationwide and saving 25.4 million MWh of electricity.