CEO and President
Mr. Gage serves as CEO and President. He joined AC Propulsion in 1996, directing strategy and market planning, business development, and communications. He also manages production of prototype vehicles for automotive customers. Before joining AC Propulsion, Mr. Gage was a senior consultant in the Global Automotive Practice at SRI International, and prior to that he was a manager in the Product Planning and Regulatory Strategy Office of Chrysler Corporation. He has conducted research projects on topics such as the future of the automobile and automotive transportation, electric vehicle commercialization, intelligent transportation systems, and neighborhood vehicles. Mr. Gage's automotive career has also included stints as an emission controls engineer, turbocharger installer, race car driver, and dealership mechanic. He holds a B.S. degree in Mechanical Engineering from Stanford University, and an M.B.A. from Carnegie Mellon University.
Paul F. Carosa
Vice President of Engineering
Mr. Carosa has served as Vice President since 1992. He is responsible for development and testing of drive system components. Prior to joining AC Propulsion, Mr. Carosa was Power Electronics Section Head at Hughes Aircraft Company, where he developed avionic power supplies and the first prototypes of the GM inductive charging system for the EV1. He has received 5 patents in the power electronics and motor fields. Mr. Carosa holds a B.M.E. degree from General Motors Institute, and an M.S.E. in Electrical Engineering from the University of California, Los Angeles.
David W. Sivertsen, Ph.D.
Vice President of Technology
Dr. Sivertsen has served as Vice President of Technology since 1992. He has considerable experience in batteries and battery management systems, instrumentation, embedded control systems, vehicle integration, and mechanical design and fabrication. He is responsible for IP management at the Company. His recent work has included working with automotive OEMs on vehicle level integration of AC Propulsion's electric drivetrain with OEM platforms, and designing new battery monitoring systems. Dr. Sivertsen holds a B.S. in Electrical Engineering and Ph.D. in Neurobiology, both from the California Institute of Technology.
Wally E. Rippel
Senior Scientist
Mr. Rippel has a distinguished career as a pioneer in electric vehicle technology which started as a senior at Caltech where he organized the “Great Electric Car Race” in 1968. He was instrumental in the proposal and development of the GM Impact Electric concept car which was the predecessor of the EV1. Wally was a co-founder of AC Propulsion in 1992 and is presently Senior Scientist working on the next-generation development of induction motors and power electronics for electric vehicles. Prior to returning to AC Propulsion in 2008, he worked on advanced EV propulsion components with Caltech’s Jet Propulsion Laboratory, AeroVironment and Tesla Motors. He received a BS in Physics from Caltech and an MS in Electrical Engineering from Cornell University. Wally holds twenty four U.S. patents with four more on the way. His number one passion remains environmental protection.

