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Siemens wins major Denmark eBuses charging contract


Siemens has signed a framework contract with Movia, the Greater Copenhagen public transport authority in Denmark, to deliver charging stations with a top-down pantograph for electric buses on request of its municipalities.


Forty-five municipalities, including the city of Copenhagen within the capital region of Denmark and the region of Zealand, could benefit from the contract. Siemens will provide high-power charging (HPC) stations, with power levels of 150kW, 300kW or 450kW. The three-year contract includes the installation, commissioning, civil engineering works and the Siemens remote monitoring system eBus cloud. This is one of the biggest frame contracts for the Siemens eBus business and it is accompanied by a six-year service contract.


In 2017, the 45 municipalities and two regions of Zealand agreed to aim for CO2-neutral bus transport by 2030 as part of Movia’s Mobility Plan 2016 – to the benefit of the over 215million annual passengers. In addition, the municipality of Copenhagen aims to become the world’s first CO2-neutral city in 2025. The switch to electric buses in Copenhagen, where nearly 100 million passengers travel by bus each year, will eliminate particulate and noise pollution and CO2 emissions from the public buses.


“Movia aims to deliver climate-friendly mobility for the benefit of cities, businesses and citizens. The agreement with Siemens paves the way for electric buses throughout Zealand and thus increases the green change of bus transport for which we have been working hard for several years. It’s really very pleasing,” says Movia chair Kirsten Jensen, mayor of Hilleroed.


Selected bus terminals are being equipped with charging stations providing the necessary power to the electric buses via a top-down pantograph inversely mounted to a mast. The battery-management system of the electric bus controls the charging process according to the standard protocol ISO 15118 via WiFi communication. Additionally, the control pilot circuit defined by the international standard DIN EN 61851 provides a manual control over the charging process to ensure the highest safety standards.


The charging process is initiated when the electric bus arrives on the charging mast and a WiFi communication is established. In order to charge the batteries, the bus stops underneath the charging mast. As soon as the driver has activated the handbrake, the charging process is started automatically and the four-pole pantograph connects with the bus. The buses are equipped with contact rails on the roof above the front axles of each electric bus. Once the driver releases the handbrake, the charging process will stop and the pantograph will be automatically raised to the upper position, and the bus is allowed to leave.


The HPC stations can charge the bus batteries within 4 to 6min at regular dwell time intervals, enabling them to complete a full day of scheduled service. By charging just enough for traveling all day from terminus to terminus or to the next available charging point, the off-board high power charger adds flexibility to the eBus service. The charging infrastructure can be used by several buses per hour, from different manufacturers.

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