Indonesia may require an estimated $15 billion in investment to meet its target of reaching 7.2 gigawatts (GW) of geothermal power capacity by 2025 and is studying ways to reduce project costs, according to an energy ministry official. The capacity would be an increase from less than 2 GW of geothermal power currently, the Ministry of Energy and Mineral Resources’s Director General of Renewable Energy F.X. Sutijastoto told reporters at a conference on geothermal energy. Coal currently makes up around 60 percent of the country’s energy mix versus about 5 percent from geothermal power, according to data from state utility company PT Perusahaan Listrik Negara (PLN). The energy ministry is drafting up plans to accelerate ongoing projects to meet the target, including reviewing the possibility of the government reimbursing some part of the development cost

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