Home Energy Labels in Oregon is one of the first and best evaluated implementations of the U.S. Department of Energy’s (DOE’s) Home Energy ScoreTM. The Home Energy ScoreTM was developed to provide homeowners, buyers and renters with credible and directly comparable details about a home’s energy consumption. The ultimate goal was for homeowners to implement energy efficiency renovations. During the six months between July and December 2023, 464 participating households carried out home upgrades that saved 840,974 kWh per year, or 1,812 kWh per home per year. They undertook energy efficiency upgrades eleven times as often as non-participating households, and they claimed an upgrade incentive twelve times as often. An increase in consumer knowledge about energy efficiency, provided through assessor interaction and scorecard information, was a leading factor in the increase in upgrades. Designated a Landmark case study by our Building Energy panel in 2024. https://toolsofchange.com/en/case-studies/detail/772/