PGEO – Initiating Lumut Balai Unit 4 project to boost geothermal capacity

PGEO – Initiating Lumut Balai Unit 4 project to boost geothermal capacity Pertamina Geothermal Energy (PGEO) has initiated the development of PLTP Lumut Balai Unit 4 in South Sumatra, with a planned capacity of 55 MW. In the initial phase, the company will drill three exploration wells with an estimated investment of USD32.21 mn, targeting completion by Oct-27. Geoscience studies suggest that the existing reservoir can support the additional capacity, forming part of PGEO’s broader strategy to reach 1 GW total capacity. The project is included in the 2025–2034 RUPTL and is supported by a Power Purchase Agreement (PPA) with an escalation scheme. While technical trials and infrastructure development are ongoing, the project is targeted to reach Commercial Operation Date (COD) in 2032, which will increase the total capacity of the Lumut Balai area to 220 MW. (Source: Idx, Disclosure of Information)