Load curve impact of large electric vehicles fleet in the Paris Île-de-France region

Abstract : Electric vehicles are expected to play an important role in a more sustainable future for the transport sector. The Ile-de-France region centered on Paris has thus set the ambitious objective of 1 million electrified vehicles by 2030. The objective of this study is hence to investigate the technical and economic interaction between mobility needs and the electricity network for the Paris-Ile-de-France region. The central element discussed is the load curve impact of a large fleet of vehicle. The problem can be described as the need to satisfy non coordinated trip demands for a typical week day that stem from the mobility demand of individual car owners. It is constrained by contextual elements such as batteries capacity limits, energy requirement to satisfy the mobility demand, charging infrastructure and preferences in charging behavior. We address that issue at a sub-hourly time step and using a total charging cost minimization paradigm. Over 50 charging contexts are analyzed to quantify the impact of electrified mobility on the current load curve in the Ile de France region and identify the main assumptions that affect this profile.