Abstract

The conversion of the world vehicle park to Green Hydrogen appears as an interesting possibility to suppress one of the most important source of CO2 emissions in the actual problematic situation of the climate change. Green Hydrogen propulsion supposes an electric drive system powered from a fuel cell, itself fed from a hydrogen reservoir. The green nature of the used hydrogen means not hydrogen produced from fossil resources, but a production of this hydrogen based on water electrolysis where the electric power comes from renewable sources as photovoltaics or wind. Such an interesting system, however, must be evaluated from the quantitative point of view, considering the basic infrastructure needed. The considered amounts of energy at different levels of comparison are evaluated, as the power amount to be installed for the yearly production of the consumed quantity of hydrogen. The paper evaluates also the needed quantity of water consumed by the electrolysers. Finally, the infrastructure of the needed PV power plant is estimated, in its design, but also in the problematic of its establishment meaning the needed time to produce the amount of PV panels by a realistic PV industry.