Team Logo. The Iowa Energy are a team in the NBA Development League. They won the championship in their fourth season. They are the affiliate of the NBA's Memphis Grizzlies. Retrieved from "https://prosportsteams.fandom.com/wiki/Iowa_Energy?oldid=16677" Categories: NBA Development League teams Teams in Iowa Teams in Des Moines Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.