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Verkehrsbetriebe Hamburg-Holstein GmbH (vhh.mobility) planned to install charging infrastructure for electric mobility at its fourth e-bus depot. In Billbrook, up to 41 articulated and solo buses are to be charged. The Billbrook bus depot is located in an industrial area, adjacent to railroad tracks used for unloading goods.
The charging equipment immediately catches the eye, featuring a technical building and a bridge construction. All 41 Flex chargers, and the transfer station for the medium-voltage system, are located within the technical building. A steel frame spans across the six bus lanes, upon which depot boxes are mounted, allowing for more vehicles to be charged in a smaller space.
The bus lanes next to the track system are separated by a fire protection wall. Mechanical roll-off systems are used to lower the charging cables for charging, preventing the risk of collisions. For better visibility, all charging cables are covered with yellow, reflective shrink tubing.
An efficiency check, performed by Dekra in autumn 2024, found the charger's efficiency to be over 96%.
The electrification of the depot allows 41 buses in Billbrook to be charged with renewable electricity, saving up to 2,600 tons of CO2. With over 785 buses, VHH is the third largest public bus operator in Germany. It currently operates 17 bus depots in Hamburg and Schleswig-Holstein. In the 2030s, the entire fleet will be converted to zero-emission drives. Over 280 electric buses are already in operation.
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.
Verkehrsbetriebe Hamburg-Holstein GmbH (vhh.mobility) planned to install charging infrastructure for electric mobility at its fourth e-bus depot. In Billbrook, up to 41 articulated and solo buses are to be charged. The Billbrook bus depot is located in an industrial area, adjacent to railroad tracks used for unloading goods.
The charging equipment immediately catches the eye, featuring a technical building and a bridge construction. All 41 Flex chargers, and the transfer station for the medium-voltage system, are located within the technical building. A steel frame spans across the six bus lanes, upon which depot boxes are mounted, allowing for more vehicles to be charged in a smaller space.
The bus lanes next to the track system are separated by a fire protection wall. Mechanical roll-off systems are used to lower the charging cables for charging, preventing the risk of collisions. For better visibility, all charging cables are covered with yellow, reflective shrink tubing.
An efficiency check, performed by Dekra in autumn 2024, found the charger's efficiency to be over 96%.
The electrification of the depot allows 41 buses in Billbrook to be charged with renewable electricity, saving up to 2,600 tons of CO2. With over 785 buses, VHH is the third largest public bus operator in Germany. It currently operates 17 bus depots in Hamburg and Schleswig-Holstein. In the 2030s, the entire fleet will be converted to zero-emission drives. Over 280 electric buses are already in operation.
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