In a performance analysis report, the US non-profit International Council on Clean Transportation suggested two designs of this type of aircraft could facilitate flights carrying up to 165 passengers travelling up to 3,400 kilometres.
The research said: “If deployed to their maximum potential, these aircraft could cap aviation emissions at 2035 levels, although a 6-12% reduction in carbon dioxide emissions, relative to 2050 levels, is more realistic.”
The analysis points out that fuel costs for a green LH2-powered aircraft will be higher than for conventional kerosene-fuelled aircraft.
They note that taxes levied on carbon dioxide emissions will be needed to make green liquid hydrogen cost-competitive with fossil jet fuel.
The report also suggests that renewable hydrogen fuel will be more expensive in Europe.