Prospect of Bedugul Geothermal ,Bali
Bali Energy Limited (BEL) has drilled 3 exploration wells, drilled 6 temperature core hole wells, tested production wells and studied several geosceinces and the development of the Bedugul field, shows that the prospect is very good and can be developed up to 175 MW with good development management and according to field characteristics.
Dirgo Rahayu
（Bedugul Geothermal Project, Project Manager Bali Energy Limited）
Educational : Bachelor of Chemical Engineering
Experience :
1. Engineer in Pertamina Sibayak North Sumatra Indonesia Area, for Well Drilling & Geothermal Production.
2. General Service Manager and Process Engineer Kamojang Project, Kamojang, West Java, Indonesia for Engineering Procurement Construction & Commissioning (EPCC) of Fluid Collection Reinjection System (FCRS) & Geothermal Power Plant 60 MW (Mega Watt)
3. General Manager Pertamina Sibayak Geothermal Area, North Sumatra, Indonesia, for 12 MW steam field operations, EPCC of FCRS 10 MW Geothermal Power Plant & as Head of T
4. General Manager Pertamina Lahendong Geothermal Area, North Sulawesi, Indonesia for 80 MW steam field operations and drilling, preparation for the EPCC of FCRS 40 MW Geothermal Power Plant & as Head of Technical Geothermal.
5. Manager of Portfolio & Business Development Pertamina Geothermal Head Office, Jakarta Indonesia.
6. General Manager of Pertamina Ulubelu Geothermal Area, Lampung, Indonesia for Drilling, EPCC of FCRS & Power Plant and Field Operations Generation of 220 MW Power Plant & as Head of Technical Geothermal.
7. Project Manager Bali Energy Limited, Bali Indonesia & as Head of Technical Geothermal.
BEL has conducted exploration activities by performing 200 point Resistivity Magnetotelluric (MT) and Gravity surveys, and drilled six temperature gradient core holes (TCH) to the depths of 1600 m. BEL obtained aerial photograph of the prospect area for better understanding of the Bedugul field as well. TCH-04 identified an area of very high temperature (243°C) at depth of 1607 m in the north eastern part of the central prospect. Based on the evaluation of these surveys and results of the slim holes, BEL then drilled three exploration wells (BEL-01, BEL-02 and BEL-03).
Geological resource reviews have all projected roughly a median estimate (50% probable) of 350-400 MW of geothermal production for 30 years with a minimum reserve estimate (90% probable) of 160 MW+ for 30 years. Under the Energy Sales Contract, (ESC) and its amendments BEL also has the right to sell all the generated electricity to Perusahaan Listrik Negara (PLN). Under the terms and agreements stated in the JOC and ESC, the total capacity of 175 MW shall be generated in Unit-1 (10 MW) followed by Unit 2, 3 and 4 with capacity of 55 MW each.
Although geothermal energy is well known as both a non-fossil renewable resource and a green environmental impact resource, the small unit power plant shall be developed first as a pilot project before developing the big scale (55 MW) units at Bedugul-Bali. This is to demonstrate to the local community that the geothermal power plant will have minimal environmental impact by reducing carbon emissions while providing economic benefits for the people of Bedugul and the entire Bali Province.