Hydrogen Fuel Offers Viable Alternative for Decarbonizing the Economy

Strategic Insights -

A new study led by Yale School of the Environment researchers has found that hydrogen derived from biomass (Bio-H2) offers a viable alternative for reducing greenhouse gas emissions. The study, published in PNAS, examined the supply and demand side of hydrogen fuel and methods of production, including water electrolysis. The researchers developed a novel framework for analysis that links life cycle assessment with the Global Change Analysis Model, highlighting the importance of considering both the production and end-use of hydrogen fuel.

Key Takeaways:

  • Hydrogen derived from biomass (Bio-H2) offers a viable alternative for reducing greenhouse gas emissions, with substantial greenhouse gas mitigation potential.
  • Water electrolysis, which splits water into hydrogen and oxygen using an electric current, can produce clean hydrogen if powered by renewable energy, but there are barriers to scaling electrolytic H2, including high capital costs and limited land and water resources.
  • The One Big Beautiful Bill Act signed into law in July will remove the currently available clean H2 production tax credits starting in 2027, a change that will mostly affect water electrolysis.
  • Bio-H2 generally results in higher emissions than electrolytic H2, but still offers substantial reductions compared to fossil-based H2. Including Bio-H2 in the market could lead to 1.6 to 2 times greater emissions mitigation from 2025-2050 compared to scenarios without its use.
  • Sector-specific incentives, such as subsidies for steel plants that use hydrogen-based production methods, could drive demand and enhance emissions reduction in hard-to-abate industries.
  • Targeted subsidies or incentives specifically designed to lower the cost of H2 adoption in industry could be even more effective in accelerating deployment and achieving greater emissions reductions.

Statistics:

  • The U.S. is a major producer of hydrogen, contributing around 10% of the global annual production.
  • Bio-H2 generally reduces emissions by 1.6 to 2 times compared to scenarios without its use from 2025-2050.
  • The use of forest residues for hydrogen production reduces overstock that can cause fires while also supporting a circular bioeconomy.

Sources:

  • Yuan Yao et al., "Hydrogen Emissions Mitigation: A Novel Framework for Analysis and a Path Forward," PNAS, Volume 123, Issue 35, 2025, https://doi.org/10.1073/pnas.2025.12335