Megawatt charger for e-trucks

A fast-charging station that can charge e-trucks within 45 minutes is being developed to enable such vehicles to travel long distances. This will increase the proportion of low-emission means of transport.


  • Lead school School of Engineering and Computer Science
  • Institute Institute for Energy and Mobility Research IEM
  • Research unit IEM / Batteries and storage systems
  • Funding organisation Schweizerische Eidgenossenschaft (Bundesverwaltung)
  • Duration (planned) 01.01.2022 - 31.12.2023
  • Project management Prof. Dr. Priscilla Caliandro
  • Head of project Christian Ochsenbein
  • Partner Bundesamt für Energie BFE
    Designwerk GmbH
    Ostschweizer Fachhochschule
    Wyssmann GmbH (Wyssmann LLC)
  • Keywords Megawatt charging, electric mobility, e-trucks, battery research


Heavy goods transport is a key component of the transition to green energies and vital to achieving climate targets. Around 6.6 million trucks are in use on Europe’s roads, carrying 76.7 percent of all freight on land. This makes it important to increase the share of low-emission or emission-free means of transport in this sector too. In order to make electric trucks viable for long-distance haulage, the company Designwerk Technologies AG is working with researchers from the Bern University of Applied Sciences and other research and industry partners to develop a new type of megawatt-class charging station. This will make it possible to fast-charge e-trucks within 45 minutes. In order to keep the load peaks on the grid connection as low as possible, the charging station will also have a battery buffer consisting of second-life batteries.

Course of action

In the scope of this project, the BFH Energy Storage Research Centre is investigating the extent to which second-life batteries are suitable for further use and what service lifetime can be expected as a buffer battery. The development of a second-life model has not yet been studied scientifically in sufficient depth, as most previous work has focused on ageing in the first application life. As a result, the operating behaviour of the batteries with a State of Health (SoH) of between 80 and 60 percent has not yet been researched in any detail. In addition, these lifetime models will be coupled with the economic operating parameters of the various operating modes, to produce a statement about the economic value to the operator. In order to also investigate the impact of fast charging on the vehicle’s batteries, the ageing behaviour of a vehicle battery that is charged predominantly using fast charging will be compared with the ageing of a vehicle battery charged with a ‘normal’ charging strategy. The project is funded by the Swiss Federal Office of Energy (SFOE).

E-LKW sollen innerhalb von 45 Minuten aufgeladen werden können.
E-LKW sollen innerhalb von 45 Minuten aufgeladen werden können.

This project contributes to the following SDGs

  • 7: Affordable and clean energy