Past Build Challenges
The U.S. Department of Energy Solar Decathlon Build Challenge dates back to the inaugural event in 2002. Since then, the Build Challenge has been held biennially in 2005, 2007, 2009, 2011, 2013, 2015, 2017, 2020 and 2023, when it was called, simply, the Solar Decathlon. Learn about past competitions via the links below, find out how past competition houses are being used today, or plan a visit to a Solar Decathlon house near you.