The Building Technologies Office develops, demonstrates, and accelerates the adoption of cost-effective technologies, techniques, tools and services that enable high-performing, energy-efficient and demand-flexible residential and commercial buildings in both the new & existing buildings markets, in support of an equitable transition to a decarbonized energy system by 2050, starting with a decarbonized power sector by 2035. Learn more about BTO.
Sign up to receive BTO’s news, events, and funding opportunities. Customize your subscription to hear from the programs you care about most.
News, Blogs, and Success Stories
Buildings UP is designed to accelerate transformation of U.S. buildings into energy-efficient and clean energy-ready homes, commercial spaces, and communities.
BTO's Program Areas
Strategic Initiatives and Partnerships
Resource Dashboard
Find technical reports, technology roadmaps, fact sheets, relevant and authorizing statutes, and quick links to BTO’s decision tools.
Project Map
The Building Technologies Office Projects Map is a searchable table and map of BTO’s active projects that have been competitively awarded and funded through DOE’s national labs all across the United States. Dive into any project to learn more about its funding amount, who’s leading the work, the project term, what the project is developing, and its most recent progress.
Join BTO’s Events
BTO Career Opportunities
Ready to start building our clean energy future with a new career in BTO? Whether you’re looking for building energy-efficiency research or engineering jobs, or you’re interested in business support careers in the building energy-efficiency industry, BTO may have a position for you.
See the available opportunities.