The technical requirements included 56 Mercedes-Benz eCitaro busses to charge reliably and efficiently, with the potential to increase power capacity should the busses be increased. However the project was not a simple charging solution alone, rather a turnkey project aimed at creating large-scale charging infrastructure for an entirely e-mobility powered public transportation system.
Heliox would provide the charging infrastructure and would be responsible for the electrical installation and medium voltage grid connection. Heliox powers a total of 6.3MW in the city of Wiesbaden with 56 chargers. Charging dispensers have been installed at regular intervals in between columns, to make charging plug and play easy.
Given that the space is restricted, the charging pillars' enclosures have been adapted to fit narrow access at the depot, with simplified access to CCS chargers by moving the interface and the control button to the front of the pillars.
The scope of Heliox’s contract stretches further than the delivery of the Overnight Chargers. It included full installation and service: charging stations, medium voltage connection and a full service and maintenance contract.
The construction work started at the end of 2019, the first chargers were operational in 2020 with a full operationality in 2021. Heliox charging infrastructure would also be compatible with the Fleet management system used, which facilitates monitoring of busses and the charging infrastructure in order to enable smart charge management.
Heliox and TU/e aim to develop an integrated solution that makes charging heavy electric vehicles accessible without negative consequences for local electricity networks. Together, we want to achieve this by developing and demonstrating a new, multiple and dynamic charging system for heavy electric vehicles that is equipped with software-controlled stabilization to absorb disturbances on the local energy grid.
The intended system will consist of a dynamically configurable charging system based on modules that can be connected in parallel, each with three 60 kW outputs. With this they want to be able to distribute the loading capacity dynamically over several vehicles. The charging system can therefore be used for opportunity charging up to 360 kW for a single vehicle as well as for regular charging of several vehicles.
In addition, smart software and a microcontroller board are being developed. The converter of the charging system can be used via this software to compensate for grid disturbances. The disturbances are neutralized via a low impedance path. This allows losses on the grid to be converted into usable energy, while improving the voltage quality of the grid. In fact, the system completely takes over the function of current power filters on the basis of smart control.
The technical requirements included 56 Mercedes-Benz eCitaro busses to charge reliably and efficiently, with the potential to increase power capacity should the busses be increased. However the project was not a simple charging solution alone, rather a turnkey project aimed at creating large-scale charging infrastructure for an entirely e-mobility powered public transportation system.
Heliox would provide the charging infrastructure and would be responsible for the electrical installation and medium voltage grid connection. Heliox powers a total of 6.3MW in the city of Wiesbaden with 56 chargers. Charging dispensers have been installed at regular intervals in between columns, to make charging plug and play easy.
Given that the space is restricted, the charging pillars' enclosures have been adapted to fit narrow access at the depot, with simplified access to CCS chargers by moving the interface and the control button to the front of the pillars.
The scope of Heliox’s contract stretches further than the delivery of the Overnight Chargers. It included full installation and service: charging stations, medium voltage connection and a full service and maintenance contract.
The construction work started at the end of 2019, the first chargers were operational in 2020 with a full operationality in 2021. Heliox charging infrastructure would also be compatible with the Fleet management system used, which facilitates monitoring of busses and the charging infrastructure in order to enable smart charge management.
