Serious Matters Related to Development of Small-scale Geothermal Power Generation in Beppu-Onsen Hot Spring After 2011
Immediately after the accident at the Fukushima Daiichi Nuclear Power Plant in 2011, the necessity of increasing the power supply using renewable energy was widely discussed in Japan. Small-scale geothermal power generating facilities with ≦2000 kW capacity were assessed as a renewable energy resource. In Beppu-Onsen hot spring, where high temperature hot springs discharge through a wide area, small-scale geothermal power generation started as early as 2013. This report describes difficulties faced by power generating facility operators as well as countermeasures taken by the local governments of Oita Prefecture and Beppu CitTy, and by scientists. The author’s ideas related to future conservation of geothermal and hot spring resources in Beppu are also presented.
KeywordsBeppu Geothermal power Development Hot spring Conservation Countermeasure
I would like to express my appreciation for support received from the RIHN project: Human-Environmental Security in Asia-Pacific Ring of Fire: Water-Energy-Food Nexus and the project members. I received valuable technical support from Mr. Taketoshi Mishima (Kyoto University). Discussions with Prof. Makoto Taniguchi (Research Institute for Humanity and Nature), Dr. Masahiko Fujii (Hokkaido University), and Prof. Keiji Takemura (Kyoto University) have been meaningful and useful.
- Ohsawa S, Watanabe K, Takamatsu N, Kato N (2009) Basic research and investigation of untapped hot spring resources (II): the amount of useful metal elements flowing into rivers. Oita Prefect Hot Spring Res Soc 59:13–19. (in Japanese)Google Scholar
- Ohsawa S, Yamasaki H, Takamatsu N, Yamada M, Amita K, Kato N (2008) The inflow of useful metal elements into rivers: basic research and investigation of untapped hot spring resources. Oita Prefect Hot Spring Res Soc 58:21–30. (in Japanese)Google Scholar
- Ohsawa S, Yusa Y, Kitaoka K (1994) Flow paths of thermal Groundwaters in the southern part of Beppu, Japan. J Balneological Soc Japan 44:199–208. (in Japanese with English abstract)Google Scholar
- Yamada M, Shoji J, Ohsawa S, Mishima T, Hata M, Honda H, Fujii M, Taniguchi M (2017) Hot spring drainage impact on fish communities around temperate estuaries in southwestern Japan. Journal of Hydrology: Regional Studies 11:69–83Google Scholar
- Yusa Y, Noda T, Kitaoka K (1975) Discharge of water, heat and chemical substances through a hydrothermal system –Beppu hydrothermal system. Journal of the Society of Engineers for Mineral Springs, Japan 10:94–108. (in Japanese with English abstract)Google Scholar
- Yusa Y, Oishi I (1988) Statistics of mass and heat outputs from wells in the Beppu geothermal system during 1985 to 1987. Reports of Oita prefecture hot spring research. Society 39:1–6. (in Japanese)Google Scholar
- Yusa Y, Yamada M (2017) Simultaneous survey of discharge temperature and water quality of hot spring waters in Beppu-Onsen on November 13, 2016. Reports of Oita prefecture hot spring research. Society 68:1–7. (in Japanese)Google Scholar