PRE-FEASIBILITY STUDY OF MEDIUM ENTHALPY GEOTHERMAL FIELD IN DANAU RANAU, INDONESIA

• Main Author: Florista Rera, Gladiez
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/48330
• Institution: Institut Teknologi Bandung

Danau Ranau geothermal field is one of the 166 medium enthalpy geothermal fields owned by Indonesia. In the development phase, this field has been carried out geoscience studies (Geology, Geochemistry and Geophysics). As a form of control over development risk, before the next stage is taken, a pre-feasibility study stage needs to be done. This research was conducted to determine how feasible the Danau Ranau geothermal field with the characteristics of the medium enthalpy was developed both in terms of direct and indirect utilization by looking at the acceptance of technical, financial, environmental and risk studies. The results of the study can be a tool for PT PLN as a developer to decide whether to continue or not carry out the next development stage, namely exploration well drilling. Result shows that di Danau Ranau Geothermal Field is feasible to develop with consideration. Plant of Development by cascade model with levelling utility of energy for Danau Ranau Geothermal Field, shows optimal value both in operational sides and financial sides. Technically, first level designed for electricity with ORC conversion technology, and the cascade level for indirect use approaching by Lindal Diagram and community empowerment in economic and social. In financial analysis, the cascade model has optimum profitability value shows in NPV and equity IRR.