Siemens supports zero-emission transport in Ostrava with solution

charging Ostrava

Siemens Smart Infrastructure will provide a charging solution for Dopravní podnik Ostrava (Ostrava Transit Authority), which will expand its fleet with 24 Solaris electric buses. The largest order for electric buses in the Czech Republic to date will include four Sicharge UC charging stations from Siemens. These high-power chargers provide an effective maximum of 400 kW each. Furthermore, Siemens will deliver 28 mobile chargers, electrical infrastructure as well as energy automation software.

“The use of electromobility in mass transportation is a fundamental step towards improving the air quality in the urban agglomeration. With our advanced digital technologies, we contribute to the economical and reliable operation of eBuses in Ostrava,” says Tomáš Hüner, head of Siemens Smart Infrastructure in the Czech Republic.

Siemens will install charging points for electric buses at the Hranečník terminal and in Valchařská Street in the center of Ostrava. One Sicharge UC fast charger with a top-down pantograph will be installed at Hranečník, and three Sicharge UC fast chargers, each in combination with a top-down pantograph, will be installed at Valchařská. These state-of-the-art chargers offer a maximum DC output of 500 A at up to 1000 V. Simatic S7 units control their reliable and optimized operation. All charging points will be equipped with a surveillance camera system and will run on a self-service basis. They are expected to charge the first eBuses by next summer. “The need for reliable, cost efficient and zero-emission mass transportation in Ostrava is perhaps higher than in other Czech cities,” says Daniel Morys, general director and board chairman of Dopravní podnik Ostrava a.s. “Clean air is an essential indicator of the quality of life. Therefore, I believe that passengers will appreciate our efforts towards a cleaner Ostrava and support us in the further expansion of electromobility.”

A Siemens microgrid control application will also be deployed to measure and transmit charging data to the transport operator’s systems for energy management as well as operations planning. This will allow remote and automatic control of the charging process according to the bus schedules, and it will be possible to change the charging output depending on the energy available. Siemens will also supply one 800 kVA and two 1,250 kVA dry type medium-voltage transformers to connect the charging points to the grid as well as medium-voltage switchgear, including a Siemens GIS, type 8DJH.

28 mobile chargers, each with an output of 22.5 kW, will be used for charging overnight or in a service garage, thus balancing the output and maintaining the eBus fleet operation. The Siemens delivery also includes project management, construction and assembly work, commissioning as well as preventive and corrective maintenance.

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