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6 May 2021 17:13 GMT Updated 7 May 2021 1:37 GMT
Hydrogen should be reserved for focused use in decarbonising air travel and the world’s heavy-emitting industries or it could lock the world in to longer-term fossil fuel reliance and drive up greenhouse gas (GHG) emissions, according to a new German study.
Researchers at the Potsdam Institute for Climate Impact Research (PIK) concluded that hydrogen should only be used in sectors that “cannot be electrified” as production of the carrier is still “too inefficient, costly and [its] availability too uncertain, to broadly replace fossil fuels” in running cars or heating homes.
“For most sectors, directly using electricity for instance in battery electric cars or heat pumps makes more economic sense. Universally relying on hydrogen-based fuels instead and keeping combustion technologies threatens to lock in a further fossil fuel dependency and GHGs,” said PIK’s Falko Euckerdt, who lead the study.
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