Hydrogen bus retrofitting

Our extensive experience in the renovation of transport equipment, combined with our expertise in electric hydrogen motors, led us to design the first retrofit kit for coaches.

As these vehicles require a very long range, hydrogen is a particularly relevant solution. Retrofitting coaches is also perfectly in line with the energy transition strategy, as it extends the vehicles’ lifespan. It is the ideal solution for sustainable mobility

H2-PACK retrofit kit

Transformation of diesel vehicles into zero emission Hydrogen vehicles.

H2 retrofit consists in replacing the thermal drive train by a 100% electric one, powered by electricity produced by a fuel cell.

Our retrofit kits proposed in pre-marketing are the result of the first experimentation work currently carried out on coaches in the Occitania region.

Technical description
Basic vehicle

Mercedes-Benz Intouro
Other models on request


Range up to 500 km
Maximum speed 100 km/h
Maintains thermal comfort conditions in summer and winter
Vehicle size strictly unchanged in accordance with regulations

retrofit - rétrofit / logo blanc
Schematic diagram
retrofit - rétrofit / schéma
retrofit - rétrofit / bandes haut

Approval of transformations according to the technical and administrative provisions of the order of March 13, 2020

The main principles of coach retrofit :

  • Removal of the engine, tanks…
  • Installation of a new energy chain, in compliance with regulatory constraints
  • Connection to the existing traction chain
  • Integration of new computers and software
  • Interfacing with existing equipment
  • Approval of the transformations according to the technical and administrative provisions of the order of March 13, 2020 
retrofit - rétrofit / car

Why is it interesting?

There are several interests in retrofitting a coach. Economic, of course, since the cost of the retrofit is of course lower than the purchase of a new vehicle, but also ecological, since the retrofit extends the life of the vehicle. Its replacement is thus postponed by several years, and the same vehicle will finally be able to circulate in Low Emission Zones (LEZ) on which it could not circulate before. Some on-board components and systems such as ticketing equipment do not have to be reinstalled.