Redox flow charging station to be installed in Martigny

Caption: The CellCube FB 10-40 already installed in Martigny will soon be augmented with a larger model. (Photo: Gildemeister)
Caption: The CellCube FB 10-40 already installed in Martigny will soon be augmented with a larger model. (Photo: Gildemeister)

Towards the end of 2015, the energy storage system manufacturer Gildemeister energy storage GmbH is planning to install a CellCube storage system, which is based on vanadium redox flow technology, at the 'Laboratory for Physical and Analytical Electrochemistry' (LEPA) of the Lausanne Polytechnic School near Martigny. The goal of the project is to develop a charging station that can charge both battery-powered as well as hydrogen / fuel cell vehicles using electricity from renewable sources.

The CellCube FB 200-400 is the second vanadium redox flow storage system that will be installed in Martigny. A smaller CellCube FB 10-40 has been in use at the LEPA for more than a year. According to the director of the LEPA, Hubert Girault, the decision to use a CellCube system was made because the previous project achieved good results. "We are very happy that our storage system has fulfilled the LEPA's expectations, and we will now carry out a follow-up project in December," said Bengt Stahlschmidt, head of global sales at Gildemeister energy storage GmbH.

CellCube as a control centre

A CellCube FB 200-400 with an output of 200 kilowatts and a storage capacity of 400 kilowatt-hours will be installed in Martigny at the end of the year. It will be the heart of the planned charging station. The system will function as a control centre and be used to charge battery-powered vehicles as well as control the production of hydrogen by two electrolysers. In addition, the storage system will shield the charging station from disruptions on the power grid and provide emergency power during power outages. The CellCube will also control when electricity will be drawn from the grid and when it will be fed in. The control system will be optimised during the course of the project, allowing the charging station to be operated using only renewable energy.

Bodo Höche / Gildemeister