Status report on the Japanese Supercritical Geothermal Project for FY2017

Hiroshi Asanuma, Toru Mogi, Noriyoshi Tsuchiya, Noriaki Watanabe, Shigemi Naganawa, Yasuo Ogawa, Yasuhiro Fujimitsu, Tatsuya Kajiwara, Kazumi Osato, Kuniaki Shimada, Seiki Horimoto, Takashi Sato, Tetsuya Ito, Shigeto Yamada, Kimio Watanabe, Yoshiharu Gotoh, Yutaka Nagasawa, Akira Kohyama

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Japanese scientists have estimated that nationwide potential of “Supercritical Geothermal Resources in Japan”, originating by the subduction of oceanic plates, reaches hundreds GWs. Power generation from the supercritical geothermal resources in Japan can contribute significantly to both energy security and reduction of emissions of CO 2 . The temperature range of the target supercritical rock body is about 400-500 o C and its depth is expected to be less than several kilometers. The depths of the supercritical rock bodies in Japan are much shallower those in other areas in the world, which brings advantages in terms of accessibility, economy, and safety. However, there are a lot of scientific unknowns about their nature, especially regarding rock-mechanical and geochemical behavior under supercritical conditions. Technological breakthroughs will be necessary, because the temperature and pressure conditions in the supercritical geothermal systems are far beyond the current technological limitations and also because experiences in previous ultra-high temperature geothermal drilling suggest that the presence of acidic geothermal fluid is likely. The Japanese government has recognized that supercritical geothermal power generation is one of the key technologies in its strategy to drastically reduce CO 2 emissions in and after 2050 (NESTI2050). In FY2017, funded by NEDO (New Energy and Industrial Technology Development Organization), a team of Japanese researchers from 14 organizations have started a national project to improve understanding of the nature of supercritical rock bodies and the engineering necessary to extract geothermal energy. This project is a feasibility study combining science, engineering, economics, and environmental issues.

本文言語English
ホスト出版物のタイトルGeothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018
出版社Geothermal Resources Council
ページ2366-2370
ページ数5
ISBN(電子版)0934412235
出版ステータスPublished - 2018
イベントGeothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018 - Reno, United States
継続期間: 2018 10月 142018 10月 17

出版物シリーズ

名前Transactions - Geothermal Resources Council
42
ISSN(印刷版)0193-5933

Other

OtherGeothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018
国/地域United States
CityReno
Period18/10/1418/10/17

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 地球物理学

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