ARPA-E Energy Innovation Summit 2026

The ARPA-E Energy Innovation Summit 2026 takes place April 7–9 in San Diego, California, convening nearly 3,000 scientists, engineers, entrepreneurs, and industry leaders to advance transformational clean energy technologies from concept to commercial deployment. Hosted by the U.S. Department of Energy's Advanced Research Projects Agency-Energy, the summit showcases R&D spanning clean electricity generation, grid modernization and storage, next-generation nuclear and fusion, advanced materials, carbon capture and removal, water technology, transportation electrification, heating solutions, and waste-to-value processes. Keynote presentations, technology demonstrations, and networking sessions enable participants to access early-stage innovations and forge partnerships accelerating commercialization. The summit emphasizes American-made, reliable, and affordable energy solutions supporting energy security while addressing climate challenges. Attendees include venture investors, corporate development leaders, national laboratory researchers, and entrepreneurs.