Fleets Go Green - Integrated Analysis and Evaluation of the Environmental Performance of Electric and Plug-in-Hybrid Vehicles in Everyday Usage on the Example of Fleet Operations


Project description

In order to ensure an efficient development and testing of electric vehicles, parameters such as the vehicle characteristics, driving cycle, driver and grid behavior as well as user requirements and profiles require an application-oriented analysis. Extensive research exists already regarding the user acceptance of electric vehicles, the interactions with the power supply system in private transport as well as Life Cycle Assessment (LCA). However, there is no approach so far that performs an integrated analysis and evaluation of the environmental performance of electric and plug-in-hybrid vehicles in everyday usage, especially in the context of fleet operations.

The potential of electric mobility to reduce the harmful environmental impacts of road transport under everyday conditions can only be analyzed and evaluated in field tests. Thus, the aim of the project Fleets Go Green is to perform an integrated analysis and evaluation of the environmental performance of electric and plug-in-hybrid vehicles in everyday usage on the example of fleet operations. For the application scenarios “Factory Fleet of BS|Energy” and “Pool Concept of the Technische Universität Braunschweig” up to 30 BEVs will be purchased and operated by BS|Energy und Lautlos durch Deutschland. The environmental and economic impacts are analyzed experimentally in a large-scale fleet test based on different usage profiles and the corresponding grid system interactions, and with the help of component and vehicle system simulations.

With its holistic approach, the project Fleets Go Green creates the necessary transparency to reach the ecological potential of electric mobility, especially in the fleet context. The project includes an analysis and evaluation part, as well as an application part and consists of five modules with the following contents:

  • Measurement, modeling, simulation and evaluation of the component-specific energy consumption with respect to different vehicle topologies (Module 1).
  • Investigation of business model-related and segment-specific drivers of the user acceptance as well as the buyer behavior of fleet operators specifically for electric vehicles (Module 2).
  • Analysis of the interactions with the power supply system and testing of innovative concepts to reduce the system load and to connect the electric mobility with renewable energy (module 3).
  • Integrated Life Cycle Assessment (Module 4).
  • Derivation of recommendations for political and economic decision-makers, including the development of a decision support for the ecologically oriented fleet management of electric vehicles (Module 5).

The systemic view on the electric mobility in fleet applications results from the interdisciplinary collaboration of the participating companies and research institutions. Paul Anfang, Vice Chairman of BS|Energy, underlines the importance of the cooperation in Fleets Go Green: "As a modern energy service provider it is our job to show ecological and economic ways of the energy usage in the transport sector. We are pleased to be able to collaborate with all the partners of the consortium to do intensive research on the practicality of electric vehicles in this large-scale fleet test. Together we have set ourselves the goal to bring the electric mobility a decisive step forward."

Project partners

  • Braunschweiger Versorgungs-AG & Co. KG, Braunschweig
  • imc Meßsysteme GmbH integrated measurement & control, Berlin
  • I+ME ACTIA GmbH, Braunschweig
  • iPoint-systems gmbh, Reutlingen
  • Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung (IFAM) e. V., München
  • Lautlos durch Deutschland GmbH, Berlin
  • Technische Universität Braunschweig, Braunschweig
  • TLK-Thermo GmbH, Braunschweig
  • Volkswagen AG, Wolfsburg
Keywords: E-Mobility


09/2012 to 08/2016


Mark Mennenga


Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety

  last changed 06.05.2019
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