# Renewable energy development in Sumatra

> Live situation record from CLSTR: https://clstr.news/situations/renewable-energy-development-in-sumatra
> Updated: 2026-10-06T03:02:00.000Z. Sources: 9. Developments: 2.

Renewable energy development projects are expanding in Sumatra, Indonesia, through geothermal and hydroelectric initiatives.

In South Sumatra, PT Pertamina Geothermal Energy Tbk (PGE) has begun drilling its second well, LMB-19.4, for the Lumut Balai Unit 3 geothermal power plant. This project, located in the Muara Enim Regency, aims for a 55 MW capacity and a full commissioning date by 2030 to support regional electricity demands.

Simultaneously, in North Sumatra, PT North Sumatera Hydro Energy (PT NSHE) is developing the 510 MW Batangtoru Hydroelectric Power Plant. Designated as a National Strategic Project, the facility features ‘Black Start’ capability to assist in grid recovery during outages and utilizes a peaker-follower system to manage peak demand.

## Timeline

### 2026-10-06: Indonesia electricity demand projected to surge amid energy transition

Indonesia's electricity demand is projected to hit 1,813 TWh by 2060, driven by industrial growth and EVs. Experts urge shifting subsidies toward electric logistics to ensure broader economic impact.

7 sources. https://clstr.news/cluster/plta-batangtoru-510-mw-plant-to-bolster-sumatra-electricity-security

### 2026-09-22: Pertamina Geothermal Energy begins second well drilling for Lumut Balai Unit 3

Pertamina Geothermal Energy has begun drilling the second well for the 55 MW Lumut Balai Unit 3 geothermal plant in South Sumatra, targeting full operation by 2030.

2 sources. https://clstr.news/cluster/pertamina-geothermal-energy-begins-second-well-drilling-for-lumut-balai-unit-3

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Cite as: Renewable energy development in Sumatra. CLSTR, https://clstr.news/situations/renewable-energy-development-in-sumatra