Classification of geothermal resources in Indonesia by applying exergy concept

Saeid Mohammadzadeh Bina, Saeid Jalilinasrabady, Hikari Fujii, Nugroho Agung Pambudi

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Indonesia is well-known for its reputation for possessing the world's largest geothermal potential, which has been characterized by high temperature geothermal resources’ concentration. The geothermal energy potential of Indonesia has been estimated to be 28,617 MW, which is about 40% of the world's geothermal potential. However, only about 4.5% is being utilized as electrical energy supply in this country. This paper comprises the Indonesian geothermal resources, based on their capability of doing work and efficiency. In this study, currently operating geothermal power plants in Indonesia have been classified, based on the exergy concept and the Specific Exergy Index (SExI). The results of SExI values show that nine geothermal fields are classified as high exergy resource with their SExI values exceeding 0.5, and two remaining power plants with SExI values between 0.05 and 0.5 are classified as medium geothermal resources.

Original languageEnglish
Pages (from-to)499-506
Number of pages8
JournalRenewable and Sustainable Energy Reviews
Publication statusPublished - Oct 2018

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment


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