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Tranzit, the local public transport operator in New Zealand’s capital city, Wellington, was looking for a reliable solution to fast charge their 10 electric double-decker busses. This project was to be the first all-electric bus fleet to start operating in New Zealand and the very first all-electric double-decker bus fleet in the world. The versatile landscape in which these double-deck busses would operate was a challenge to be dealt with, along with becoming pioneers of the double-decker charging solution.
Tranzit was interested in opportunity charging, which would allow the highest uptime and availability for their fleet. Heliox supplied 8 fast chargers together with the Bus-Up (roof-mounted pantograph) solution to charge the very first double-decker e-busses in the world. Heliox provided a combination of opportunity and overnight charging to meet the requirements, comprising five Heliox FAST DC 2x30kW chargers, two Heliox OC 450kW chargers, and one Heliox FAST DC 25kW mobile charger with a plug-in option for ultimate flexibility in the workshop.
The 82-seat double-deckers would be fully charged overnight at the depot using the Heliox Fast DC (depot chargers) 2x30kW twin chargers, while topping up their batteries during the day were Heliox OC (opportunity chargers) 450kW at charging stations en route across the pre-defined network.
This project served as an excellent example of the strength of open interfaces and the open-source OCPP back-office communication, which gathered data from the infrastructure and the EV bus fleet.
As the fast chargers are compatible with any brand and models of electric busses that use opportunity charging, the solution allows the uptake of additional electric busses in the future.
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.
Tranzit, the local public transport operator in New Zealand’s capital city, Wellington, was looking for a reliable solution to fast charge their 10 electric double-decker busses. This project was to be the first all-electric bus fleet to start operating in New Zealand and the very first all-electric double-decker bus fleet in the world. The versatile landscape in which these double-deck busses would operate was a challenge to be dealt with, along with becoming pioneers of the double-decker charging solution.
Tranzit was interested in opportunity charging, which would allow the highest uptime and availability for their fleet. Heliox supplied 8 fast chargers together with the Bus-Up (roof-mounted pantograph) solution to charge the very first double-decker e-busses in the world. Heliox provided a combination of opportunity and overnight charging to meet the requirements, comprising five Heliox FAST DC 2x30kW chargers, two Heliox OC 450kW chargers, and one Heliox FAST DC 25kW mobile charger with a plug-in option for ultimate flexibility in the workshop.
The 82-seat double-deckers would be fully charged overnight at the depot using the Heliox Fast DC (depot chargers) 2x30kW twin chargers, while topping up their batteries during the day were Heliox OC (opportunity chargers) 450kW at charging stations en route across the pre-defined network.
This project served as an excellent example of the strength of open interfaces and the open-source OCPP back-office communication, which gathered data from the infrastructure and the EV bus fleet.
As the fast chargers are compatible with any brand and models of electric busses that use opportunity charging, the solution allows the uptake of additional electric busses in the future.
