Geothermal Potentials in Indonesia: ABSTRACT

Abstract

Since 1969, beginning with the first year of the First Five-Year Development Program, prospecting for geothermal resources has been carried out by the Geological End_Page 1438------------------------------ Survey of Indonesia (GSI) throughout the entire Indonesian territory. At the end of 1973 55% of the area has been explored in a preliminary way; the work covered mainly the vast volcanic region. Data on geothermal indications or visible surface phenomena, such as hot springs, hot water, hot mud pools, solfataras, and fumaroles, are indicated on topographic maps, and data on temperature, pH, estimated discharge, and chemical analyses are included. From these data, the potential energy has been calculated. The local geologic features should be studied in more detail to enable us to interpret the existence of geothermal potential and to guide future exploration. This will be carried out during the Second Five-Year Development Program in the framework of the national demand for electric power outside the conventional electrically supplied areas. Results of prefeasibility studies on geothermal resources in Indonesia were evaluated and two localities in volcanic areas, the Dieng Highlands and Kawah Kamojang, were recommended for further exploration. Exploration drilling has been started in Dieng, but unfortunately it was stopped because of technical difficulties before any results were obtained. Exploration drilling in Kawah Kamojang is scheduled for February 1974. End_of_Article - Last_Page 1439------------