Electrification of the powertrain is an approach to alleviate some of the key problems passenger car transport is facing today. Electric powertrains have superior efficiency and electricity as a transport fuel facilitates diversification and decarbonisation of the fuel supply. This thesis analyses the potentials of these technologies from an energy economic perspective. The author explains the basic principles that determine energy demand in passenger car transport and gives an insight into the key factors that affect technological change in propulsion technology. By giving a techno-economic...