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タイトル: | Limited impact of hydrogen co-firing on prolonging fossil-based power generation under low emissions scenarios |
著者: | Oshiro, Ken https://orcid.org/0000-0001-6720-409X (unconfirmed) Fujimori, Shinichiro https://orcid.org/0000-0001-7897-1796 (unconfirmed) |
著者名の別形: | 大城, 賢 藤森, 真一郎 |
キーワード: | Climate-change mitigation Climate-change policy Energy modelling |
発行日: | 4-Mar-2024 |
出版者: | Springer Nature |
誌名: | Nature Communications |
巻: | 15 |
論文番号: | 1778 |
抄録: | 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. |
記述: | 脱炭素社会における水素・アンモニア発電の貢献は限定的であることを解明. 京都大学プレスリリース. 2024-03-05. |
著作権等: | © The Author(s) 2024 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/287234 |
DOI(出版社版): | 10.1038/s41467-024-46101-5 |
PubMed ID: | 38438354 |
関連リンク: | https://www.t.kyoto-u.ac.jp/ja/research/topics/20240304 |
出現コレクション: | 学術雑誌掲載論文等 |
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