Hamburg transit agency Hamburger Hochbahn AG has acquired four Mercedes-Benz Citaro FuelCELL Hybrid buses under the German NaBuz demo scheme; with a further three buses to be delivered next year.

NaBuz demo is a subsidiary project of the Clean Energy Partnership (CEP), funded by NOW GmbH’s National Innovation Programme (NIP) and closely linked to the wider European CHIC fuel cell bus project. Hamburg is a phase 0 city in the CHIC project.

The Citaro FuelCELL Hybrid features battery hybridisation for energy recovery and storage and a continuous power output of 120 kW delivered by the same fuel cell stacks used in the company’s flagship fuel cell vehicle, the B-Class FCELL, which has also been trialled in Hamburg.