Dr. John R. Tuttle is an entrepreneur, executive and technologist with 35 yrs of experience in the semiconductor, cleantech & energy Industries.  Presently, he serves as the COO for Emrgy, Inc., a company deploying distributed hydrokinetic power systems worldwide. Previously, he was a Senior Commercialization Advisor at ARPA-E where his focus was distributed energy resources (DER), the grid, and innovation in capital funding of early-stage energy technologies. Prior to joining ARPA-E, he founded and led two start-ups (DayStar Technologies, Inc. & Skypoint Solar, Inc.) in the solar PV industry focused on new product development and innovative manufacturing. In the case of DayStar, he raised over $45 million, primarily in public equity, and transitioned the company from R&D to production with over 100 employees. Early in his career, Dr. Tuttle spent 11 years at NREL and is internationally renowned for his pioneering work in thin-film PV, including multiple world-record solar cells. Dr. Tuttle holds a Ph.D. in E.E from the University of Colorado, an M.S. in Physics from the Colorado School of Mines and a B.S in Engineering Physics from Cornell University.