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Czech city of Ostrava expands electric bus fleet

Siemens is supporting the city’s drive towards zero-emission public transport with charging infrastructure to power 24 new electric buses for the Ostrava Transit Authority.

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The new electric buses and chargers are due to be operational in 2022
The new electric buses and chargers are due to be operational in 2022

Ostrava Transit Authority (Dopravní podnik Ostrava) in the Czech Republic is expanding its fleet with 24 Solaris electric buses.

 

Reportedly the largest order for electric buses in the republic to date, it will include four Sicharge UC charging stations from Siemens, alongside 28 mobile chargers, electrical infrastructure and energy automation software.

 

Charging points

 

Siemens will install charging points for electric buses at the Hranečník terminal and in Valchařská Street in the centre of Ostrava. One 400 kW 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.

 

The chargers offer a maximum DC output of 500 amps at up to 1,000 volts. All charging points will be equipped with a surveillance camera system and will operate on a self-service basis. They are expected to charge the first e-buses by summer 2022.

 

“The need for reliable, cost-efficient and zero-emission mass transportation in Ostrava is perhaps higher than in other Czech cities,” said Daniel Morys, general director and board chairman of Dopravní podnik Ostrava.

 

“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.

“I believe that passengers will appreciate our efforts towards a cleaner Ostrava and support us in the further expansion of electromobility”

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.

 

In addition, 28 mobile chargers, each with an output of 22.5 kW, will be used for charging overnight or in a service garage, to balance the output and maintaining the e-bus fleet operation. Siemens’ delivery will also include project management, construction and assembly work, commissioning as well as preventive and corrective maintenance.

 

Solaris Bus & Coach will supply a fleet of 24 electric buses to the Ostrava Transit Authority. The selected Solaris Urbino 12 models will have Solaris high power batteries with a total capacity of 91.4 kWh.

 

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