Abstract
As discussed in Part 1 of this series, hydrogen (H2) is being debated across the globe as a means of reducing greenhouse gas (GHG) emissions, specifically in efforts to decarbonize the existing energy and transportation sectors. In these discussions, stakeholders use multiple terms such as hydrogen‐enriched natural gas power (HENG), power‐to‐gas (P2G), green H2, and renewable H2. All of these terms generally mean producing H2 with excess renewable power using electrolyzers, which appears to be the preferred policy option. For the purposes of this article, green H2will be used and to distinguish it from blue H2, which can use natural gas as a feedstock with steam methane reforming.
Published Version
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