On August 28, 2024, NASEO, with support from the U.S. Department of Energy’s Office of Electricity, released a guide on Accelerating Energy Storage Research, Development, and Demonstration: Policy, Programmatic, and Planning Considerations for States. As the United States moves to electrify and decarbonize the electric grid, energy storage will be key to providing reliability and grid flexibility. This guide provides an overview of different energy storage technologies (including battery storage, flywheels, and pumped hydropower) and looks at the potential for long-duration energy storage including iron-air batteries and clean hydrogen. State Energy Offices play an important role in advancing the research, development, and demonstration (RD&D) of these energy storage technologies through grant and incentive programs, cost-benefit analysis and market assessment studies, state energy storage roadmaps, engagement with investor-and-consumer owned utilities, and collaboration with DOE and the private sector. This guide provides an in-depth analysis of these different roles with case studies and examples from across the country. It closes with an overview of key equity considerations and what drivers are needed to advance the market for energy storage. Please visit the NASEO Storage page for more information on energy storage and click here to view the publication.