Geothermal Prospect in Indonesia: Prospect Status and Development Opportunity

Abstract

Geothermal exploration surveys in Indonesia have been intensively carried out since 1974. Regional surveys are mostly done by VSI Survey of Indonesia while the detailed surveys are by PERTAMINA, the State Oil and Gas Company of Indonesia. The have identified 217 geothermal prospects. 70 of which are classified as high enthalpy with estimated reservoir temperature of greater than 32 of the high enthalpy prospects can be further differentiated into their prospect status, 8 are developed and drilled prospects and 24 prospects are categorized as ready for exploration drilling. Indonesia's electric power experiences rapid increase in electrical demand. PLN, the State Electricity Company plans to develop approximately MW every year, generated from all sources of energy other than oil. Indonesia has a countrywide geothermal potential of about MW. The development of this source of energy is pan of the National energy diversification policy.