by Bus-News
Published
13 Apr 2022
Tags
Charging Infrastructure
EO Charging
Infrastructure
Suppliers Comeca Group
In Europe, a large majority of current electric buses are charged with direct current (also called DC).
AC buses are more common outside Europe, particularly in China. Discover all the possible solutions for recharging electric buses with direct current, depending on the different aspects of your vehicle fleet.
Electric buses with a battery are powered only by the battery on the vehicle, which provides the energy required. The choice of bus and battery size will depend on the power requirements, electrical energy, distance to be covered, climate, topography of the journey and the chosen recharging infrastructure.
There are two connection solutions for vehicle charging:
Different recharging solutions are possible for 100% battery-electric buses:
These methods are not necessarily exclusive and can be combined to suit the needs of each mobility operator and each city: it is possible to recharge the bus in the evening at the depot and by pantograph during the day, for example. The preferred solution must be selected taking into account the needs and constraints of each player.
Electric Bus and Charger Accounting
Interoperability must allow each vehicle put on the market to be recharged by different brands of chargers. When it comes to charging infrastructure for electric vehicles, standards are evolving and compliance with them may be partial. On-board systems have software versions that are constantly evolving, which is why manufacturers of charging stations have set up an interoperability test programme with manufacturers of buses and electric cars that meet the Combo CCS standard. The manufacturers of electric bus chargers regularly monitor the manufacturers’ market to identify new entrants and plan interoperability tests. At the end of these tests, an “interoperability statement” is generally co-signed with the manufacturer concerned.
The charging infrastructure market has a large number of players. Few are capable of adapting to the constraints for 360°, turnkey projects that will guarantee an appropriate investment cost, a limited cost of ownership, assured availability, flexibility in operation and the evolution of charging power over the life of the installation.
This article was originally published by Comeca Group.
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