Régie Autonome des Transports Parisiens (RAPT) has signed an agreement with Solaris to test its hydrogen bus.
The vehicle is set to be trialled over a two-month period early 2020 in everyday travelling conditions, with passengers on board.
The new Solaris bus will be housed at the Thiais bus depot, in the Val-de-Marne department.
In hope to eventually operate a 100% clean bus fleet, RAPT has announced it will be the first European operator to convert all of its bus depots to electric and biogas by 2025.
Through its Bus 2025 programme, RAPT will convert its bus depots and fleets to biogas and electric traction, involving 4,700 buses and 25 bus depots.
RAPT is making an offer to manufacturers of rolling stock to test the fuel cell rolling stock they are developing in real operating conditions.