order from Hamburger Hochbahn AG
Hochbahn AG is one of Germany’s largest public transport companies, carrying
over 1.2 million passengers a day on four subway and 119 bus lines.
a resolution of the Senate of Hamburg, Hamburger Hochbahn AG has exclusively
been purchasing e-buses since 2020 and has set a goal of operating a completely
emission-free bus fleet by 2030. From 2021 to 2023, Siemens successfully
equipped two carports at the Alsterdorf bus depot with a total of 141 SICHARGE
UC charging points as well as medium- and low-voltage technology, including
SIVACON S8 low-voltage switchgear. This is complemented by the implementation
of an energy-efficient ventilation concept with separate air ducting for the
cold and warm air volumes, which significantly boosts energy savings during charging.
March 2023, Siemens received an order from Hamburger Hochbahn AG to equip the
Harburg II bus depot for DC charging of its growing e-bus fleet. To this end, a
total of 20 SICHARGE UC charging points of the latest generation, each with a
nominal power of 150 kW, will be installed on five lanes. Siemens will create
working and implementation planning based on the customer’s planning
specifications. The chargers will be mounted outdoors in conjunction with a
truss system spanning the bus lanes with standard CCS connector technology. The
project scope also includes delivery, installation and commissioning of a
transformer station for integration into the medium-voltage grid, as well as
the necessary communications technology for integration into the charging and
depot management system of Hamburger Hochbahn AG.
five-year maintenance and service contract ensures the required availability of
the charging infrastructure. The extension and conversion of the depot will
take place during ongoing operations. Commissioning is scheduled for early
addition, Siemens is working with Hamburger Hochbahn AG to implement advanced
requirements to optimize network and charging infrastructure management for the
depots. Also, there are already considerations to enable bidirectional power
flows in the long term.
Hamburger Hochbahn AG has more than 250 battery-electric buses, including
articulated buses with a length of 18 meters, space for more than 130
passengers, and a minimum range of approximately 250 kilometers without
stopping for charging.