Geothermal power generation
Idemitsu Kosan has been conducting geothermal Resources surveys since the 1970s, and began its geothermal business in 1996 by supplying steam to Kyushu Electric Power Co.'s Takigami Power Plant in Kokonoe Town, Oita Prefecture. In 2017, we began independent operation of the Takigami Binary Power Plant. We are currently constructing a new geothermal power plant in the Oyasu area of Akita Prefecture.
We will continue to explore and develop geothermal Resources and ensure stable operation and operation of geothermal power plants, with the aim of domestic geothermal development that is rooted in local communities.
basic information
What is geothermal power generation?
Geothermal power generation uses the power of high-temperature water and steam heated by underground magma. Our company has been working on this since the 1970s as a purely domestically produced energy that can generate electricity stably.
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Business strengths
In Oita Prefecture, we supply steam for power generation to Kyushu Electric Power Co.'s Takigami Power Plant. We are also operating the Takigami Binary Power Plant commercially by utilizing hot water, which was an unused Resources.
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Initiatives for new development
We are constructing a new geothermal power plant (name: Snail Mountain Power Plant) in the Oyasu area of Akita Prefecture. We aim to start operation in 2027 through Oyasu Geothermal Co., Ltd., a joint venture with INPEX Geothermal Development Co., Ltd. and TEPCO Renewable Power Co., Ltd.
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