e-fuel

noun

A combustion fuel that is theoretically environmentally friendly and is carbon neutral. A range of combustibles that is produced by combining hydrogen from water with atmospheric carbon dioxide using renewable energy sources to make the fuels.

Meanings

noune-fuel (countable and uncountable, plural e-fuels)

plural e-fuels · alternative efuel

  1. countableuncountableA combustion fuel that is theoretically environmentally friendly and is carbon neutral. A range of combustibles that is produced by combining hydrogen from water with atmospheric carbon dioxide using renewable energy sources to make the fuels.

    E-fuels can subsequently end up in any of the sectors shown, but mainly get used as transport fuels for aviation and shipping, depending on the scenario.

    2021, Tom Smolinka, Jürgen Garche, editors, Electrochemical Power Sources […] , Elsevier, →ISBN, page 13
    1 more example

    Fuels produced from hydrogen can be used as straight replacements for oil and gas and can be low-carbon, if renewable electricity is used to produce these “e-fuels”. However, the research found that using the electricity directly to power cars and warm houses was far more efficient.

    2021 May 6, Damian Carrington, “Using hydrogen fuel risks locking in reliance on fossil fuels, researchers warn”, in The Guardian

    Synonyms: electrofuel

Synonyms & antonyms

nounA combustion fuel that is theoretically environmentally friendly and is carbon neutral. A range of combustibles that is produced by combining hydrogen from water with atmospheric carbon dioxide using renewable energy sources to make the fuels.

Also see

Origin

Cite this entry
APA

e-fuel. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/e-fuel

MLA

“e-fuel.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/e-fuel. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “e-fuel,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/e-fuel.

Source: e-fuel on Wiktionary, CC BY-SA 4.0.