This project involves a $70 million loan from ADB with $19.25 million Clean Technology Fund (CTF) concessional financing and a $20 million parallel loan funded through Leading Asia's Private Sector Infrastructure (LEAP) Fund.


Engie (France), Sumitomo (Japan), and Supreme Energy

ADB assistance

$70 million loan


$20 million parallel loan funded through Leading Asia’s Private Sector Infrastructure (LEAP) Fund; a $19.25 million loan from the Clean Technology Fund (CTF)

Key features

  • The project will develop, operate, and maintain geothermal steam resources and an 80 MW power generation unit in the Liki Pinangawan Muara Laboh concession area.
  • The development of a baseload geothermal power plant and the avoidance of carbon emissions will help the government achieve sustainable growth targets through private sector investment.
  • The project is cofinanced by the Japan Bank for International Cooperation and Nippon Export Investment and Insurance.

ADB’s value addition

  • Through CTF concessional financing, motivate developers to complete more challenging exploration programs and reach financial close. 
  • Demonstrate the bankability of the new geothermal power purchase agreement and the replicability of structuring solutions to manage complexities and resource risks presented by geothermal independent power producers.

Date approved

7 December 2016

This case study is originally published in Asian Development Bank Private Sector Operations, a brochure describing the work of ADB's Private Sector Operations Department, its main goal, sector focus, portfolios, and case studies on projects approved in 2016.