Indonesia has committed to cooperating with the United States and Japan to develop a Small Modular Reactor (SMR) nuclear power plant in West Kalimantan. This commitment has been included in the Indonesia-US Reciprocal Trade Agreement (ART) signed on February 19, 2026. Currently, Indonesia's state electricity company PLN has signed a Memorandum of Understanding with US-based NuScale Power for the West Kalimantan nuclear project and is conducting a feasibility study.
The project will adopt a public-private partnership model, starting with engineering and design work, planning to build 2×75 MW small modular reactors, with flexible module capacities of 25, 50, 75, or 100 MW, ensuring easier safety assurance. The study period is 8–10 months, followed by evaluation by the US Trade and Development Agency (USTDA). Indonesia's National Research and Innovation Agency (BRIN) is responsible for refining the project plan, with the project site determined in West Kalimantan, with no new location selected.
NuScale's SMR technology, though certified, has not yet been commercially deployed. The first small reactor in the US is planned to be operational only in 2028, so Indonesia's SMR project will still undergo a long construction process. It is currently undecided whether the generated electricity will supply only West Kalimantan or be transmitted to Java Island. Apart from the US, Russia has also expressed interest in participating in Indonesia's nuclear power development.
In December 2025, Russian President Vladimir Putin, during a meeting with President Prabowo, stated Russia's willingness to provide support in the nuclear energy sector. In April 2025, Russia's state atomic energy corporation Rosatom submitted two nuclear power plant construction proposals at the Indonesia-Russia Economic and Trade Meeting, becoming an important alternative partner besides the US.
Indonesia has committed to cooperating with the United States and Japan to develop a Small Modular Reactor (SMR) nuclear power plant in West Kalimantan. This commitment has been included in the Indonesia-US Reciprocal Trade Agreement (ART) signed on February 19, 2026. Currently, Indonesia's state electricity company PLN has signed a Memorandum of Understanding with US-based NuScale Power for the West Kalimantan nuclear project and is conducting a feasibility study.
The project will adopt a public-private partnership model, starting with engineering and design work, planning to build 2×75 MW small modular reactors, with flexible module capacities of 25, 50, 75, or 100 MW, ensuring easier safety assurance. The study period is 8–10 months, followed by evaluation by the US Trade and Development Agency (USTDA). Indonesia's National Research and Innovation Agency (BRIN) is responsible for refining the project plan, with the project site determined in West Kalimantan, with no new location selected.
NuScale's SMR technology, though certified, has not yet been commercially deployed. The first small reactor in the US is planned to be operational only in 2028, so Indonesia's SMR project will still undergo a long construction process. It is currently undecided whether the generated electricity will supply only West Kalimantan or be transmitted to Java Island. Apart from the US, Russia has also expressed interest in participating in Indonesia's nuclear power development.
In December 2025, Russian President Vladimir Putin, during a meeting with President Prabowo, stated Russia's willingness to provide support in the nuclear energy sector. In April 2025, Russia's state atomic energy corporation Rosatom submitted two nuclear power plant construction proposals at the Indonesia-Russia Economic and Trade Meeting, becoming an important alternative partner besides the US.