Julius Jöhrens

Contact

Phone: +49 (0)6221 4767 45

Julius Jöhrens

Mobility

Research Topics

  • Electromobility – model-based analyses for consumers and politicians
  • Strategic evaluation of eFuels (“power-to-X”)
  • Impact of alternative powertrains and fuels on the energy system
  • Policy instruments for achieving CO2 savings in transport – well-to-wheel

Curriculum Vitae

  • Since 2013 Project leader
  • Since 2010 Research associate at ifeu Heidelberg
  • 2013: Research post in the USA (McCloy Fellowship in Environmental Policy)
  • 2004-2010: Studied physics and political science at the University of Jena

Selected Projects

  • My e-Drive – app and internet platform to provide help when deciding to purchase an electric vehicle
  • Roadmap for overhead lines to power HGVs – research into ways of introducing electrically driven heavy goods vehicles and supplying them with energy via overhead contact lines
  • Ongoing development and in-depth analysis of the environmental balance sheet of electric vehicles

Selected Publications

  • J. Jöhrens, J. Hildermeier (2015): Umweltinnovationen im Pkw-Bereich: Kann Verkehrspolitik Technologiesprünge erzwingen? / Environmental innovations for passenger cars: Is transport policy able to force technological transitions? In: W. Canzler, A. Knie, O. Schwedes (Hrsg.): Handbuch Verkehrspolitik. Springer Fachmedien, Wiesbaden.
  • J. Jöhrens und H. Helms (2014): How to Green Electric Vehicles. Analysis of key factors for Reducing Climate Impacts of Electric Vehicles. In: Proceedings of IEEE Electric Vehicle Conference (IEVC), Florence.
  • J. Jöhrens (2013): Zero Emission Vehicles in California and Germany – a comparison of national conditions and policy. Working Paper, Heidelberg.
  • H. Helms, J. Jöhrens und U. Lambrecht (2013): Umweltwirkungen alternativer Antriebe / Environmental Impacts of alternative powertrains. In: P. Jochem, W.-R. Poganietz, A. Grundwald und W. Fichtner (Hrsg.): Alternative Antriebskonzepte bei sich wandelnden Mobilitätsstilen. KIT Scientific Publishing, Karlsruhe.
  • H. Helms, J. Jöhrens und U. Lambrecht (2012): Hybrid- und Elektrofahrzeuge: Perspektive für einen umweltfreundlichen Verkehr? / Hybrid and electric vehicles: Option for an environmentally-friendly transport sector? In: C. Hoff und O. Sirch (Hrsg.): Elektrik / Elektronik in Hybrid- und Elektrofahrzeugen und elektrisches Energiemanagement III, expert-Verlag, Renningen.
  • J. Jöhrens und H. Helms (2012): Comparing drive train concepts beyond GHG emissions – an efficiency approach. In: Proceedings of the 19th Transport and Air Pollution Conference, Thessaloniki.