SPI, ESI & North America Smart Energy Week is the largest event in North America for the renewable energy industry, including solar, storage, smart energy, wind, hydrogen & fuel cells, geothermal, and EV infrastructure, drawing over 19,000 attendees, 700 exhibitors from 115 countries. Anchored by the flagship event, SPI, North America Smart Energy week brings together an extensive alliance of renewable energy leaders for four days of networking, education, and innovation that moves the industry forward.