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Saving Money by Using Electric Vehicles

Feb. 22, 2013 — High battery costs still prevent many people from buying an electric vehicle. Is it possible to save money by using an electric vehicle instead of a conventional reference car? This question is studied by the companies of Michelin and Siemens in cooperation with research partners at Karlsruhe Institute of Technology (KIT) and the Fraunhofer Institute for Systems and Innovation Research ISI. In January 2013, the consortium was promised funding by the Federal Ministry of Transport, Building, and Urban Development (BMVBS) under the Baden-Württemberg LivingLab BWe mobil showcase project.
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“If electric mobility is to be successful in Europe, it has to be economically efficient. We are looking for applications in which electric vehicles are cheaper than a reference car with a combustion engine,” says Dr. Olaf Wollersheim, head of the RheinMobil showcase project at Karlsruhe Institute of Technology (KIT). This is where the companies of Michelin and Siemens come in. Their staff members commute frequently between the German and French facilities. So far, conventional vehicles have been used for these trips. However, an electric vehicle may be cheaper, as every kilometer driven electrically costs less than driving on gasoline or diesel fuel. Wollersheim points out that the reason is the much higher efficiency of the electric drive train. “If the vehicle is used often, costs can be reduced considerably and the high purchasing price is compensated.”

In a few weeks from now, first electric vehicles will be used by the staff commuting from Alsace to the Michelin factory in Karlsruhe. At the same time, Siemens staff members will use an electric instead of a gasoline-based vehicle for their trips between the factories in Karlsruhe and Haguenau, France. In both cases, utilization of the vehicles is planned to be increased, such that the electric vehicle will be cheaper than the reference car with a combustion engine at the end of the project. This concept also convinced the federal government. The project scheduled for a duration of three years and having a volume of nearly two million euros will be funded by the BMVBF and the project partners at a ratio of 50 : 50.

“Michelin does not only develop and sell tires, but is also committed to viable mobility. This is one of the company’s principles outlined in the “Performance and Responsibility” Charter. The RheinMobil project fits perfectly to our company culture, as we can combine our values of ‘respect for people’ and ‘promoting innovation’,” explains Christian Metzger, the Karlsruhe plant manager of Michelin. “If electric mobility is to have a future, we have to bring electric vehicles onto the roads and make them visible,” Metzger says.

“By participating in the project, Siemens does not only want to contribute to environmental protection, we also want to enhance the acceptance of electric mobility among our staff members. For business trips to our factory at Haguenau, Alsace, which is located 70 km away, they can test the electric vehicle in practice,” says Hans-Georg Kumpfmüller, spokesman of the Karlsruhe Siemens plant management.

To reach the ambitious project objectives, smart operation strategies for the vehicles, charging stations at the right places, and efforts to convince the staff members of the companies are required. Fraunhofer ISI and KIT have already studied user expectations and commercialization obstacles. They know the factors that prevent people from using electric vehicles, such as high costs, small ranges, and limited availability of charging infrastructure.

“This is where we come in,” says Max Nastold, managing director of the company e-MotionLine. This company has just been established by KIT graduates and now received the first order to supply vehicles for the RheinMobil project. “We take care of the selection of economically most efficient vehicles, coordinate the charging infrastructure, and train the users in using this new technology.” Max Nastold is convinced that this concept can also be used to open up other economically efficient applications. As regards the use of the charging infrastructure on both sides of the German-French border, the RheinMobil partners cooperate closely with the CROss-border Mobility for EVs (CROME) project ( that is funded by several German and French ministries.


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