Limited impact of hydrogen co-firing on prolonging fossil-based power generation under low emissions scenarios

19541 7 105210 2 320086 document 105210 s41467-024-46101-5.pdf application/pdf 165f6f437c3029e90e1f476e8300b470 MD5 1272505 2024-03-06 08:44:29 https://pure.iiasa.ac.at/id/eprint/19541/1/s41467-024-46101-5.pdf 19541 1 1 application/pdf text en public cc_by_4

s41467-024-46101-5.pdf

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/105210 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/105210 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/105210 archive 353 disk0/00/01/95/41 2024-03-06 08:46:01 2024-09-09 12:43:12 2024-03-06 08:46:01 article show Oshiro K. Fujimori S. 8258 0000-0001-7897-1796 Limited impact of hydrogen co-firing on prolonging fossil-based power generation under low emissions scenarios pub ECE S3 TISS Climate change mitigation generally require rapid decarbonization in the power sector, including phase-out of fossil fuel-fired generators. Given recent technological developments, co-firing of hydrogen or ammonia, could help decarbonize fossil-based generators, but little is known about how its effects would play out globally. Here, we explore this topic using an energy system model. The results indicate that hydrogen co-firing occurs solely in stringent mitigation like 1.5 °C scenarios, where around half of existing coal and gas power capacity can be retrofitted for hydrogen co-firing, reducing stranded capacity, mainly in the Organization for Economic Co-operation and Development (OECD) countries and Asia. However, electricity supply from co-firing generators is limited to about 1% of total electricity generation, because hydrogen co-firing is mainly used as a backup option to balance the variable renewable energies. The incremental fuel cost of hydrogen results in lower capacity factor of hydrogen co-fired generators, whereas low-carbon hydrogen contributes to reducing emission cost associated with carbon pricing. While hydrogen co-firing may play a role in balancing intermittency of variable renewable energies, it will not seriously delay the phase-out of fossil-based generators. 2024-02-14 published Nature Publishing Group doi:10.1038/s41467-024-46101-5 2881 public Nature Communications 15 1 e1778 TRUE 2041-1723 no info:eu-repo/semantics/article