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Zurich, Switzerland: ABB has been awarded orders totaling more than US$16 million by Transports Publics Genevois (TPG), Geneva’s public transport operator, and Swiss bus manufacturer HESS, to provide flash charging and on-board electric vehicle technology for 12 TOSA (Trolleybus Optimisation Système Alimentation) fully electric buses (e-buses) which will run on Line 23, connecting Geneva’s airport with suburban Geneva. The e-buses can help save as much as 1,000 tonnes of carbon dioxide per year, when compared with existing diesel buses.

The company will deliver and deploy 13 flash-charging stations along an urban transit bus route, as well as three terminal and four depot feeding stations. This will be the world’s fastest flash-charging connection technology taking less than 1 second to connect the bus to the charging point. The onboard batteries can then be charged in 15 seconds with a 600-kilowatt boost of power at the bus stop. A further four to five minute charge at the terminus at the end of the line enables a full recharge of the batteries.

The decision to deploy TOSA on Line 23 was undertaken after the successful pilot of the first such e-bus on the route from Geneva airport to the Palexpo exhibition centre. The Line 23 bus route will be slightly modified in order to provide a fast connection to Praille-Acacias-Vernet, a new suburb being built to accommodate 11,000 flats and office space for about 11,000 employees. When fully commissioned in 2018, the high-capacity articulated buses will depart from both terminuses at 10-minute intervals during peak times. The line carries more than 10,000 passengers a day and the replacement of diesel buses by TOSA e-buses reduces noise as well as greenhouse gas emissions.

As part of a separate award by HESS, the company will supply 12 flexible drivetrain solutions for the buses including integrated traction and auxiliary converters, roof-mounted battery units and Energy Transfer Systems (ETS), as well as permanent magnet traction motors. Both contracts include five-year maintenance and service agreements to ensure operational reliability, efficiency and safety.

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