1999 年 21 巻 3 号 p. 225-235
The area in which the Uenotai geothermal power station is located was surveyed originally by owa Mining Co., Ltd. (DOWA) in 1971. Akita Geothermal Energy Co., Ltd. (AGECO), an affiliate company of DOWA, was established in 1981, and all of the technical information and data on the Uenotai field were transferred to AGECO. In this report, I cover the following three categories;1. A summary of the 23 years of investigation and development in the Uenotai area.2. The operation conditions during the four and half years since this power station commenced its operations.3. The problems to be settled in the future.