| Abstract |
PT Pertamina Geothermal Energy (PGE), a subsidiary of PT Pertamina (Persero) is one of the geothermal developer companies in Indonesia that has been developing 14 (fourteen) Geothermal Working Areas (GWA) were located in Indonesia. Indonesia which is a country with enormous geothermal energy potential by approximately 40% of the world geothermal energy resources and about 4% MW has been installed, hence the rest of 96% need to be developed as one of solutions to solve the power shortage in Indonesia due to the fast economic growing and its energy demands are growing rapidly. PGE with a task of government to develop the 14 GWA where it has operated and developed simultaneously to accelerate and achieve the commercial target of the projects. Several GWA has operated already in scheme of Own Operation project for the area of Kamojang (Kamojang - Darajat), Sibayak (Gunung Sibayak – Gunung Sinabung), Lahendong (Lahendong) and Ulubelu (Gunung Waypanas) with total installed capacity contribution is ~402 MW. PGE subsequent development until year 2019 is 655 MW, and it is expected to be raised by a total of ~2300 MW in year 2025. Currently, PGE activities divided into several sequence phases, for the exploration phase has been conducted in projects of Iyang Argopuro (Gunung Iyang Argopuro), Kotamobagu (Kotamobagu) and Sungai Penuh (Sungai Penuh). The projects in development phase located in Hululais (Hululais), and the status of Engineering Procurement Construction (EPC) for Power Plant located in Lumut Balai (Lumut Balai and Margabayur) and Karaha (Karaha Cakrabuana), while for extension phase is Kamojang Unit 5, Ulubelu Unit 3 & 4 and Lahendong Unit 5 & 6. The another PGE development scheme is Joint Operation Contract (JOC) that has been operating commercially in Gunung Salak (Cibeureum-Parabakti) for ~377 MW, Darajat (Kamojang - Darajat) for ~271 MW and Wayang Windu (Pangalengan) for ~227 MW. |