Green hydrogen for network use

Hydrogen as an energy carrier requires the implementation of a complex system, due to the many ways in which hydrogen is produced, its various uses as is or after conversion into electricity, and the extremely dynamic regulatory, economic and technological context.

Thinking about the use of hydrogen as an energy carrier is only possible if we take a global view of production, transport, storage and consumption of both heat and electricity. How can such an approach be structured?

Hydrogen has three main uses:

• industrial use ;

• use for mobility ;

• network use (injection into the gas network and large- or small-scale electrical storage).

Obviously, these uses have common elements, so we'll start by presenting the means of hydrogen production, the means of transport and storage, and the technical data concerning the electrolyzer and the fuel cell. After examining each application, we'll summarize the regulatory, dimensioning and economic information, taking an overall view. Based on this information, we'll look at anticipated developments, then answer the most frequently asked questions about this energy carrier.