Martin Keller has served as director of NREL and president of the Alliance for Sustainable Energy—the company that operates NREL for the U.S. Department of Energy—since 2015. Under his leadership, the number of full-time employees at NREL has increased by more than 32%. Keller is a visionary leader who is committed to people, teams, and partnerships. He innovatively and pragmatically applies private sector best practices at NREL to achieve game-changing scientific outcomes.