The Early Recognition on Hot Dry Rock Systems in Indonesia: An Overview

Abstract

Indonesia has the biggest geothermal potential in the world since the location has a close relationship within the magmatic belts. However, the current development of geothermal in Indonesia is only about 2.286,05 MW of the existing reserves. The government has a program for energy transition to reduce greenhouse gas emissions, therefore it must maximize the potential of all the geothermal systems, one of which is hot dry rock geothermal. Hot Dry Rock (HDR) also known as Enhanced Geothermal System (EGS) is a geothermal mechanism with less or no natural fractures or fluid exists but has sufficient temperature located at the deep basement. This study tries to provide a review about the initial recognition of HDR potential in Indonesia based on the available published paper/journal/article, together with some preliminary suggestions regarding with the exploration and/or extraction strategies to encourage more researches about HDR in Indonesia to be conducted in the future. The authors emphasize that there are several challenges of HDR in Indonesia related to the advance data-technology that could result in high project cost. Author encourage the collaboration with oil and gas industry that has better data availability related to the basement condition in several area in Indonesia to support future HDR exploration.