The Mayor of Sofia launched Chariot e-bus’s first European pilot project on 19 May 2014. This ended in October 2015
The Chariot e-bus had a 20kWh ultracapacitor and ran regular Route 11 services (11.2-kilometre unduplicated length).
The project had two 150kW DC/DC charging stations located at each route end. Charging time was eight minutes.
Demonstrated for the first time in Europe, the Chariot e-bus demonstrated operational robustness, unprecedented low energy consumption, and operational flexibility.
Scrutinised by Landshut University, Germany, the leading European e-bus test laboratory, the results proved the ultracapacitor as the most efficient energy store and the one most suitable in fast charging e-buses.
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