The twelfth edition of the ACEEE State Energy Efficiency Scorecard gives a progress report on state energy efficiency policies and programs that save energy and produce environmental and economic benefits. The Scorecard uses 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. The top states in this year’s Scorecard were Massachusetts, California, Rhode Island, Vermont, and Connecticut. The most-improved state was New Jersey; other up-and-coming states included Missouri, Colorado, and South Dakota. Energy efficiency is a growing resource in these states and others, with utilities spending more than $7.9 billion in 2017 for efficiency programs nationwide and saving 27.3 million MWh of electricity.