It means operators can choose their e-buses independently of the charging infrastructure
Siemens electric bus charging technology is being used to charge electric buses in Hamburg from different manufacturers.
The capability has been demonstrated by Hamburger Hochbahn, which operates the underground system and large parts of the bus system in Hamburg, and which has put three additional all-electric buses into service. The buses are running on the transport operator’s "innovation line" 109.
Battery-powered buses built by Solaris will be charged at the same Siemens charging stations that also power the plug-in hybrid buses from Volvo which have been serving Hamburg since the end of 2014. It makes Siemens the first supplier worldwide to provide a charging infrastructure for e-buses that ensures interoperability for vehicles from different manufacturers.
Each of the two charging terminals has a capacity of 300 kW and two charging stations. The stations can provide the buses with enough energy to enable them to operate a full day from terminal to terminal on Line 109. The charging operation takes only around six minutes. The stations are located in the Bus-Port (ZOB) in downtown Hamburg, and in Alsterdorf.
The charging process conforms to open international standards IEC 61851 and ISO 15118 that are the basis for e-bus charging systems, which enable vehicles from different manufacturers to use the same charging system. It means that operators are able to select their e-buses independently of the charging infrastructure and ensures their interoperability.
The three battery-powered buses from Solaris are equipped with the on-board charging system from Siemens designed for the quick-charge stations. Having both the on-board equipment and charging infrastructure provided by one supplier not only makes interoperability possible, but optimally harmonises the systems on the basis of open international standards.
By equipping the buses with Siemens charging equipment, vehicles of every type and from different manufacturers can easily be integrated into one system.