Geothermal Fields On the Ring of Fire Prospect Developed Fields

Coal( 64%) Geo (5%) Hydro Gas Oil Indonesia Energy Reserves Distribution

Geothermal Project Benefits Environmental –Emissions Benefits Compared To Fossil Fuel Generation –Land Use Benefits Over Coal –No Impact On Local Water Supply Economic Benefits For Utilizing Indigenous Non Exportable Fuels –Private Investment –Frees Up Exportable Fuels For Foreign Exchange –330 MW Geothermal Resource is Equivalent To 105,000,000 BBL of Oil –Diversity of Fuel Resources Geothermal Generation Product Benefits –Smaller Units To Match Load Demand Growth –Plants Are Highly Reliable –Plant Output Can Follow Load Curve

Stages of Geothermal Investigation and Development Reconnaissance Survey Exploration (pre-drilling) –Geology, Geophysics, Geochemistry, and Env. Exploratory Drilling Preliminary Technical Assessment Development and Production Drilling Feasibility and Plant Design Construction and Operation

Geothermal Power Plant Cycle