In a presentation to the Natural Resources and Infrastructure Committee of the National Conference of State Legislatures, RAP principal Rich Sedano discussed the status of energy efficiency policies in the US. He emphasized that energy efficiency is a cheap, effective, and “evergreen” resource. However, states vary in their approach to funding, screening programs, measuring their effectiveness, and addressing the throughput incentive for utilities. Of particular importance is ensuring that all benefits are properly accounted for when evaluating the cost-effectiveness of efficiency programs. As a whole, the US vastly under-invests in efficiency resources, leaving cost-effective energy efficiency resources untapped. States must work to align regulators, utilities, manufacturers, and consumers to unlock efficiency’s full potential.