The ACEEE 2025 State Energy Efficiency Scorecard ranks the 50 states and DC on their policies and programs to advance energy efficiency. California, Massachusetts. New York and Vermont continued to lead the country, with Maryland joining them at the top of the list for the first time. Colorado reached the top 10 for the first time, New Jersey returned to the top 10 for the first time since 2008, and Louisiana leaped up the ranks due to a significant improvement in building codes. 

Many states improved their efficiency programs to focus more on saving money for low-income households and reducing harmful pollution contributing to climate change. 

The State Energy Efficiency Scorecard, now in its 16th edition, ranks states on their policy and program efforts to advance energy efficiency. Energy efficiency remains our nation’s least-cost energy resource while also delivering additional benefits such as grid reliability and resilience. In the wake of rapidly rising energy prices and electricity bills, many states are recognizing energy efficiency’s important role in keeping energy affordable by helping homeowners and businesses reduce costs, by improving living conditions, and by creating jobs, all while supporting increasingly ambitious state and local goals to reduce carbon emissions. The Scorecard assesses performance, documents best practices, and recognizes leadership. This report captures the latest policy developments and state efforts to save energy and highlights opportunities and policy tools available to governors, state legislators, and regulators.