Major Geothermal Projects of Pertamina Geothermal Energy (PGEO) Set to Secure US$613 Million (Rp10.18 Trillion) Funding from World Bank, ADB, and Others By: Robert Buluma   Four flagship geothermal projects of PT Pertamina Geothermal Energy (PGEO) have entered Indonesia’s 2025-2029 Blue Book, opening the door to US$613 million (Rp10.18 trillion) in concessional loans from World Bank, ADB, JBIC, and JICA. The projects will add 215 MW of clean energy and boost local economies.   Indonesia, sitting on the Pacific Ring of Fire, possesses the world’s largest geothermal reserves  nearly 24 GW of proven potential. Yet only about 2,300 MW has been tapped so far. That is about to change in a big way. On December 4, 2025, PT Pertamina Geothermal Energy Tbk (IDX: PGEO) announced that four of its major geothermal projects have officially been included in Indonesia’s prestigious Blue Book 2025-2029 compiled by Bappenas (Ministry of National Development Planning). This inclusion ...