Building Technologies Office (part of U.S. Department of Energy)

The Building Technologies Office (BTO), part of the U.S. Department of Energy, focuses on improving the energy efficiency of buildings, including homes and commercial structures. It develops innovative technologies and strategies to reduce energy consumption, lower costs, and enhance comfort and safety. BTO supports research, development, and deployment of advanced systems like better insulation, heating and cooling, lighting, and smart building technologies. Its goal is to create energy-efficient buildings that help protect the environment, save money for consumers, and strengthen national energy security.