The Orange County Sustainability Decathlon will take place October 5-15, 2023, at the OC Fair & Event Center in Costa Mesa, CA. The event will feature the OCSD23 competition, as well as a STEAM Student Showcase that is open to both high school and college teams. OCSD challenges university teams to design and build model solar-powered homes that address climate change and California’s housing needs. This sustainability event will showcase innovative, market-ready model homes, local community programs, non-profits, family friendly activities, sustainable companies and more, which will be open to the public for free.