ALPHAXIOMS Geothermal News & Energy Research

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 ...

PGE’s Lumut Balai Unit 2: A 55 MW Geothermal Triumph Rewriting Indonesia’s Clean Energy Future By:  Robert Buluma Indonesia has once again staked its claim as a global geothermal heavyweight. With the successful operationalization of the Lumut Balai Unit 2 Geothermal Power Plant, PT Pertamina Geothermal Energy Tbk (PGE) has delivered a strategic blow in the global race toward clean baseload energy. More than just a 55 MW addition to the country’s energy mix, this project marks a bold step in Indonesia’s ambition to expand its geothermal capacity to 1 gigawatt within the next few years. In a world grappling with climate volatility, unstable energy prices, and growing demand for reliable renewable power, this achievement resonates far beyond Indonesia’s borders. It signals a shift — a declaration that geothermal energy is rapidly maturing, scaling, and proving itself as the backbone of modern clean-energy systems. A Milestone Project in a Region Rich With Geothermal Potential Lumut ...