Marshall Miller received his Ph.D. in physics from the University of Pennsylvania. After a post-doc at the University of Chicago, he joined the Institute of Transportation Studies at the University of California, Davis in 1993. His work focuses on advanced technologies and fuels to increase fuel economy and reduce emissions in the transportation sector. He manages the Advanced Vehicle Propulsion Systems Laboratory at UC Davis where he studies batteries and ultracapacitors to understand their applications in vehicles. He has developed models to assess the potential greenhouse gas reductions and cost implications from the market penetration of new vehicle technologies in the light-duty and trucking sectors. He has worked with transit agencies, utilities, regulatory agencies, industry, and non-profits to understand the implications of specific vehicle and fuel technologies including fuel cells, batteries, hydrogen, and biofuels.