Japan's Inpex eyes doubling capacity at Indonesia geothermal plant - Nikkei Asia
Published December 15, 2025
Inpex Plans to Double Capacity at Indonesian Geothermal Facility
Japanese energy company Inpex Corporation is setting its sights on significantly expanding its geothermal energy operations in Indonesia. The firm is looking to double the capacity of its geothermal plant located in the country, a move that aligns with its broader strategy to enhance its renewable energy portfolio.
Inpex currently operates the Geothermal Power Plant in the Dieng Plateau region of Central Java, which has an installed capacity of 60 megawatts (MW). The company aims to increase this capacity to 120 MW, thereby reinforcing its commitment to sustainable energy solutions in Indonesia.
Indonesia, known for its rich geothermal resources, is a key player in the global renewable energy landscape. The country is home to approximately 40% of the world’s geothermal reserves, making it an attractive destination for energy companies looking to invest in clean energy technologies. Inpex’s plans to expand its geothermal capacity come at a time when Indonesia is striving to increase its renewable energy output, with a target of achieving 23% of its energy mix from renewable sources by 2025.
The expansion project is expected to involve significant investment and technological advancements. Inpex has indicated that it will leverage its expertise in geothermal energy development to implement the necessary upgrades and enhancements at the facility. This includes the deployment of advanced drilling techniques and improved power generation technologies to maximize efficiency and output.
Inpex’s commitment to doubling its geothermal capacity is part of a larger trend among energy companies focusing on renewable sources amid growing concerns about climate change and the need for sustainable energy solutions. The company is also exploring other renewable energy projects in different regions, further diversifying its energy portfolio.
The Dieng Plateau geothermal plant has been operational since 2014 and has played a crucial role in supplying electricity to the local grid. The expansion is expected to not only increase energy production but also create job opportunities and contribute to the local economy.
As part of its sustainability initiatives, Inpex is dedicated to minimizing the environmental impact of its operations. The company aims to implement best practices in geothermal energy production, ensuring that its activities align with environmental regulations and contribute to the preservation of the surrounding ecosystem.
In addition to its geothermal endeavors, Inpex is also investing in other renewable energy sectors, including solar and wind power. This diversified approach is intended to position the company as a leader in the renewable energy market, both in Japan and internationally.
Inpex’s plans for expansion come at a pivotal moment for Indonesia, which is actively seeking to boost its renewable energy capacity to meet growing demand and reduce reliance on fossil fuels. The Indonesian government has been working to create a favorable investment climate for renewable energy projects, offering incentives and support for companies willing to invest in the sector.
With its vast geothermal potential and supportive regulatory environment, Indonesia is poised to become a hub for renewable energy development in Southeast Asia. Inpex’s commitment to expanding its geothermal operations is expected to play a significant role in achieving the country’s renewable energy goals.
As the global energy landscape continues to evolve, Inpex’s focus on renewable energy, particularly geothermal, underscores the importance of sustainable practices in the energy sector. The company’s expansion plans reflect a strategic response to the increasing demand for clean energy solutions and the urgent need to address climate change challenges.
In summary, Inpex Corporation is poised to double the capacity of its geothermal plant in Indonesia as part of its ongoing commitment to renewable energy development. The expansion aligns with Indonesia’s goals of increasing its renewable energy share and demonstrates Inpex’s dedication to sustainable energy practices. The project is expected to enhance local energy production, create job opportunities, and contribute to the broader effort to combat climate change.
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