Calculation of the energy required to produce hydrogen and to produce electricity from hydrogen (hydrogen fuel cell)
Hydrogen is not exactly a source of energy (like the wind or the sun) but rather an energy vector: you need a source of energy to produce hydrogen with an electrolyser, then generally it is necessary to store the hydrogen produced, and finally to use a fuel cell which allows the hydrogen to be transformed into electricity. One talks about the Power-H2-Power chain.
The online calculator below allows you to estimate the energy required to produce a certain quantity of H2 in kg, but also to calculate the electricity produced by a hydrogen fuel cell (PAC). The software also gives the possibility to determine the efficiency chain of the power-H2-power conversion process (global yield).
Calculation of the energy (electricity) required to produce hydrogen
Enter your values in the white boxes, the results are displayed in the green boxes.
Efficiency of the hydrogen chain - Technical datasheet - Case of the "Power-to-H2-to-Power" - ADEME - 2020 - Fr
Technical datasheet Hydrogen - ADEME - 2020
Storage density of hydrogen - Wikipedia:
Density of hydrogen