Coal currently makes up around 60% of the country's energy mix versus about 5% 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, Sutijastoto said, including reviewing the possibility of the government reimbursing some part of the development costs.
"We will see, things such as infrastructure, may be possible to be reimbursed by the government," he said, referring to items such as roads or bridges built by the company to reach the geothermal power site.
PT Pertamina Geothermal Energy, a unit of state energy company PT Pertamina, is aiming to invest $2.7 billion in geothermal power through 2026, President Director Ali Mundakir told reporters at the conference.
The company aim to increase its geothermal capacity to 1.1 GW by 2026 from 672 megawatts currently.
(Reporting by Wilda Asmarini; Writing by Fransiska Nangoy; Editing by Christian Schmollinger) (([email protected]; +62 21 2992 7610; Reuters Messaging: [email protected]))