Comparative Environmental Impact Evaluation of Hydrogen Production Methods from Renewable and Nonrenewable Sources

Canan Acar*, Ibrahim Dincer

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

29 Citations (Scopus)
1 Downloads (Pure)


In this chapter, a comparative environmental impact study of possible hydrogen production methods from renewable and nonrenewable sources is undertaken with a special emphasis on Turkey. The goal is to make useful and practical recommendations to the authorities in terms of research and development, demonstration projects and applications. Environmental impacts (global warming potential, GWP and acidification potential, AP), production costs, energy and exergy efficiencies of eight different methods are compared. These methods are natural gas steam reforming, coal gasification, water electrolysis via wind and solar electrolysis, thermochemical water splitting with a Cu–Cl and S–I cycles, and high temperature electrolysis. The relations between environmental impacts and economic factors are also presented using the social cost of carbon (SCC) concept. The global warming and acidification potentials of the selected production methods show that thermochemical water splitting with the Cu–Cl and S–I cycles are advantageous over the other methods, followed by wind, solar, and high temperature electrolysis. In terms of hydrogen production costs, electrolysis methods are found to be least attractive. Energy and exergy efficiency comparisons show that biomass gasification becomes advantageous over the other methods.
Original languageEnglish
Title of host publicationCauses, Impacts and Solutions to Global Warming
Place of PublicationNew York
ISBN (Electronic)978-1-4614-7588-0
ISBN (Print)978-1-4614-7587-3
Publication statusPublished - 2013
Externally publishedYes


  • Hydrogen production
  • Global warming potential
  • Emissions
  • Energy
  • Exergy
  • Efficiency
  • Environmental impact evaluation
  • Renewable sources
  • Nonremewable sources
  • Turkey
  • Acidification potential
  • Exergy efficiency
  • Natural gas steam reforming
  • Coal gasification
  • Water electrolysis
  • Wind
  • Solar electolysis
  • Thermochemical water splitting
  • S-I cycle
  • High temperature electrolysis
  • n/a OA procedure


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