Siemens Mobility’s 12 Mireo Plus H hydrogen multiple units ordered by Romania’s Railway Reform Authority (ARF) are scheduled to enter passenger service in 2029. The contract includes a 15-year full-service maintenance agreement, with an option to extend for a further 15 years and will see maintenance carried out locally in Romania.
The two-car articulated trainsets will offer 131 fixed seats and five folding seats, with a maximum operating speed of 120 km/h. The units can operate in multiple traction of up to two coupled trainsets, allowing capacity adjustments according to demand on regional routes.
The batteries are charged both by the fuel cell system and through regenerative braking, enabling operation on non-electrified lines without local emissions.
The fleet will be fitted with PZB train protection and ETCS, ensuring compliance with European interoperability requirements. Passenger information will be provided through interior and exterior displays and automated audio announcements.
Under the service agreement, Siemens Mobility will assume full Entity in Charge of Maintenance (ECM) responsibility. Maintenance activities, including preventive and corrective work, overhauls and material supply, will be supported by the Railigent X digital maintenance and fleet management platform and carried out at facilities in Romania, including a dedicated depot in Bucharest.
The hydrogen units form part of Siemens Mobility’s Mireo platform, which includes battery-electric (Mireo Plus B) and hydrogen (Mireo Plus H) variants deployed across multiple European networks.
