In the conventional geothermal power generation, the electricity is sold by the geothermal power plant operators to the off-takers that distribute the electricity to the buyers, such as the industries. However, some industries are located too far away for an economically viable connection to the existing grid so that they have to generate power independently to support their industrial activities. Geothermal captive use offers a new approach on how geothermal energy can provide clean and cheap electricity for the local industries, yet no electricity grid is accessible, and the costs of diesel and natural gas are high. Examples of geothermal captive use can be seen in Lihir (Papua New Guinea) and Florida Canyon (United States). Although geothermal captive use is yet to be implemented in Indonesia, several mining sites have the potential to implement geothermal captive use. This paper aims to identify the potential of geothermal captive use to support industrial activities, with an emphasis on the mining industry. A literature review is conducted to review the captive use mechanisms from the worldwide experience and extract the lessons learned that may be applicable in Indonesia. Additionally, the mining sites near to or intersecting geothermal prospect areas are identified. This study also reviews the challenges and path forward to accelerate the industrial geothermal captive use in Indonesia.

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