Hydrogen Fuel Cell trucks can decarbonise heavy transport
https://energypost.eu/hydrogen-fuel-cell-trucks-can-decarbonise-heavy-transport/

’hydrogen has an energy density of approximately 120 MJ/kg, almost three times more than diesel or gasoline.
In electrical terms, the energy density of hydrogen is equal to 33.6 kWh of usable energy per kg, versus diesel which only holds about 12–14 kWh per kg.’