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Geothermal Resources and Reserves in Indonesia: an Updated Revision : Volume 3, Issue 1 (17/02/2015)

By Fauzi, A.

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Book Id: WPLBN0004009980
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Geothermal Resources and Reserves in Indonesia: an Updated Revision : Volume 3, Issue 1 (17/02/2015)  
Author: Fauzi, A.
Volume: Vol. 3, Issue 1
Language: English
Subject: Science, Geothermal, Energy
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Fauzi, A. (2015). Geothermal Resources and Reserves in Indonesia: an Updated Revision : Volume 3, Issue 1 (17/02/2015). Retrieved from

Description: PT. Geo Power Indonesia, Menara Palma #15-02A-B Kuningan, 12950 Jakarta, Indonesia. More than 300 high- to low-enthalpy geothermal sources have been identified throughout Indonesia. From the early 1980s until the late 1990s, the geothermal potential for power production in Indonesia was estimated to be about 20 000 MWe. The most recent estimate exceeds 29 000 MWe derived from the 300 sites (Geological Agency, December 2013).

This resource estimate has been obtained by adding all of the estimated geothermal potential resources and reserves classified as speculative, hypothetical, possible, probable, and proven from all sites where such information is available. However, this approach to estimating the geothermal potential is flawed because it includes double counting of some reserve estimates as resource estimates, thus giving an inflated figure for the total national geothermal potential.

This paper describes an updated revision of the geothermal resource estimate in Indonesia using a more realistic methodology. The methodology proposes that the preliminary Speculative Resource category should cover the full potential of a geothermal area and form the base reference figure for the resource of the area. Further investigation of this resource may improve the level of confidence of the category of reserves but will not necessarily increase the figure of the preliminary resource estimate as a whole, unless the result of the investigation is higher. A previous paper (Fauzi, 2013a, b) redefined and revised the geothermal resource estimate for Indonesia. The methodology, adopted from Fauzi (2013a, b), will be fully described in this paper. As a result of using the revised methodology, the potential geothermal resources and reserves for Indonesia are estimated to be about 24 000 MWe, some 5000 MWe less than the 2013 national estimate.

Geothermal resources and reserves in Indonesia: an updated revision

Fauzi, A.: Geothermal Resources and Reserves in Indonesia: A Revision; in: Proceedings, 13th Indonesia International Geothermal Convention & Exhibition 2013, Jakarta, Indonesia, 12–14 June, 2013b.; API News-Sikumbang, Let's Investing Together on Geothermal; in API (Indonesian Geothermal Association) News No. 8 – October 2012, p.5., 2012.; Australian Geothermal Code Committee: Geothermal Lexicon For Resources and Reserves Definition and Reporting, Edition 2, Adelaide, 2010.; Directorate General of New Energy: Renewable and Conservation Energy (Ebtke), Profil Potensi Panas Bumi Indonesia, 2012.; Fauzi, A.: Geothermal development in Indonesia: An overview; Geothermia, Rev de Geoenergia, 14, 147–152, 1998.; Fauzi, A.: A proposed new methodology for estimating geothermal resources and reserves in Indonesia; in Petrominer Magazine No. 5, May 2013, 64–65, 2013a.; Fauzi, A., Bahri, S., and Akuanbatin, H.: Geothermal Development in Indonesia: An Overview of Industry Status and Future Growth; in Proc. World Geothermal Congress, 2000.; Geological Agency: (Badan Geologi Indonesia), Geothermal Area Distribution Map And Its Potential in Indonesia, Status Dec. 2013.; Pertamina: Pertamina Geothermal Development: Resources & Utilization: Publication of Pertamina Geothermal Division, 2005; Radja, V. T.: Review of the Status of Geothermal Development and Operation in Indonesia; in Proceedings of the Geothermal Resources Council Transaction 1990, Kona, Hawaii, 20–24 August, 14, 127–145, 1990,; Sanyal, S. K.: Technical Paper: Classification of Geothermal Systems – A Possible Scheme, United States Department of Energy (Washington, D.C.), 2005.; SN:, Klasifikasi Potensi Energi Panas Bumi di Indonesia; Standar Nasional Indonesia-SNI 13-5012-1998-ICS 73.020, 1998.; SNI: Metode Estimasi Potensi Energi Panas Bumi di Indonesia; Standar Nasional Indonesia-SNI 13-6171-1999 ICS 73.020, 1999.; Suari, S. and Fauzi, A.: Geothermal Prospects in Sumatera; in Proc. Indonesian Petroleum Association, 20th Annual Convention, Oct. 1991-IPA, 91-21.21, 1991.; Suryantoro, S.: Challenges of Geothermal Development in Indonesia; in Proc. World Geothermal Congress, 2000.; Suryantoro, S., Dwipa, S., Ariati, R., and Darma, S.: Geothermal Deregulation and Energy Policy in Indonesia; in Proc. World Geothermal Congress, 2005.; Wahyuningsih, R.: Potensi dan Wilayah Kerja Pertambangan Panas Bumi di Indonesia: Subdit Panas Bumi, Kolokium Hasil Lapangan-DIM, 2005.


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