‘Clean’ hydrogen? An analysis of the emissions and costs of fossil fuel based versus renewable electricity based hydrogen

Thomas Longden, Fiona J. Beck, Frank Jotzo, Richard Andrews and Mousami Prasad
Additional contact information
Fiona J. Beck: Research School of Electrical, Energy and Materials Engineering, ANU
Frank Jotzo: Crawford School of Public Policy, Australian National University
Richard Andrews: Crawford School of Public Policy, Australian National University
Mousami Prasad: Crawford School of Public Policy, Australian National University

CCEP Working Papers from Centre for Climate & Energy Policy, Crawford School of Public Policy, The Australian National University

Abstract: Hydrogen produced using fossil fuel feed stocks causes greenhouse gas (GHG) emissions, even when carbon capture and storage (CCS) is used. By contrast, hydrogen produced using electrolysis and zero-emissions electricity does not create GHG emissions. Several countries advocating the use of ‘clean’ hydrogen put both technologies in the same category. Recent studies and strategies have compared these technologies, typically assuming high carbon capture rates, but have not assessed the impact of fugitive emissions and lower capture rates on total emissions and costs. We find that emissions from gas or coal based hydrogen production systems could be substantial even with CCS, and the cost of CCS is higher than often assumed. At the same time there are indications that electrolysis with renewable energy could become cheaper than fossil fuel with CCS options, possibly in the nearterm future. Establishing hydrogen supply chains on the basis of fossil fuels, as many national strategies foresee, may be incompatible with decarbonisation objectives and raise the risk of stranded assets.

Date: 2021-03
New Economics Papers: this item is included in nep-ene, nep-env and nep-reg
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ccep.crawford.anu.edu.au/sites/default/fil ... clean_hydrogen_0.pdf

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:een:ccepwp:2103

Access Statistics for this paper

More papers in CCEP Working Papers from Centre for Climate & Energy Policy, Crawford School of Public Policy, The Australian National University Contact information at EDIRC.
Bibliographic data for series maintained by CCEP ().