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Energy & Renewables vocabulary · Hydro, Nuclear and Other Sources

Green hydrogen

Meaning in energy & renewables, with examples

nounCommon term

In energy & renewables, green hydrogen means: Hydrogen produced by splitting water in an electrolyser powered by renewable electricity, so that its production releases almost no carbon dioxide.

In Turkish: yeşil hidrojen

How it is used

Discussed for steel, fertiliser, chemicals, shipping and long-term storage. It is compared with grey hydrogen (made from natural gas) and blue hydrogen (from gas with carbon capture). Electrolysers are sized in MW, and the cost per kilogram is the key number.

Example sentences

  1. The steel plant plans to replace part of its natural gas with green hydrogen.

  2. In most markets, green hydrogen is still more expensive than grey hydrogen.

Common collocations

  • green hydrogen production
  • electrolyser capacity
  • grey hydrogen
  • blue hydrogen
  • hydrogen economy
  • renewable energyEnergy from sources that nature replaces all the time, such as sunlight, wind, flowing water, the Earth's heat and organic material, so they do not run out like coal, oil or gas.
  • decarbonizationReducing the carbon dioxide emissions of an economy, sector or company, for example by switching to renewable power, electrifying heat and transport and improving efficiency.
  • energy storageTechnologies that capture energy when it is available and release it later when it is needed, such as batteries, pumped hydro and thermal storage.
  • natural gasA fossil fuel made mostly of methane, burned in power plants, industry and homes. It emits less CO2 than coal for the same electricity, but it is still a fossil fuel.

More terms: Hydro, Nuclear and Other Sources

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