Comment Comment by MayeulC These are common terms. A random link: https://www.weforum.org/stories/2021/07/clean-energy-green-h...* Green: produced from surplus renewable capacity (electrolysis)* Black, brown, grey: convert various fossil fuels to hydrogen via steam reforming. Basically strip carbon from hydrocarbons, emitting a lot of CO2.* Blue: same as black/brown/Greg but with carbon capture.There are other (less common) shades as well. parent MayeulC 1 year ago
* Green: produced from surplus renewable capacity (electrolysis)
* Black, brown, grey: convert various fossil fuels to hydrogen via steam reforming. Basically strip carbon from hydrocarbons, emitting a lot of CO2.
* Blue: same as black/brown/Greg but with carbon capture.
There are other (less common) shades as well.