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October 5, 2021updated 14 Oct 2021 1:37pm

Simbolon Samosir Geothermal Power Plant, Indonesia

By Carmen

Simbolon Samosir Geothermal Power Plant is an 110MW geothermal power project. It is planned in North Sumatra, Indonesia. The project is currently in permitting stage. It will be developed in single phase. Post completion of the construction, the project is expected to get commissioned in 2025.

Project TypeTotal Capacity (MW)Active Capacity (MW)Pipeline Capacity (MW)Project StatusProject LocationProject DeveloperGeothermal110-110PermittingNorth Sumatra, IndonesiaPT Samosir Geothermal Power


The project is being developed and currently owned by PT Samosir Geothermal Power.

Simbolon Samosir Geothermal Power Plant will run at a temperature of 240 Degree Celsius.

The project cost is expected to be around $440m.

The geothermal power project consists of 2 turbines, each with 55MW nameplate capacity.

Development Status

Post completion of the construction, the project is expected to get commissioned in 2025.

Power Purchase Agreement

The power generated from the Simbolon Samosir Geothermal Power Plant will be sold to PT PLN (Persero) under a power purchase agreement.

About PT Samosir Geothermal Power

KS ORKA and PT Optima Nusantara agreed to establish the special purpose entity PT Samosir Geothermal Power (project company) to jointly develop the Simbolon-Samosir geothermal project.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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