Kamojang geothermal power plant in Indonesia starts green hydrogen production - ThinkGeoEnergy

Kamojang geothermal power plant in Indonesia starts green hydrogen production - ThinkGeoEnergy

Published December 16, 2025

Kamojang Geothermal Power Plant in Indonesia Initiates Green Hydrogen Production

The Kamojang geothermal power plant, located in Indonesia, has officially commenced the production of green hydrogen. This significant development marks a step forward in harnessing renewable energy sources to produce hydrogen, which is increasingly recognized as a clean energy carrier essential for the transition to a sustainable energy future.

Kamojang, situated in West Java, is one of Indonesia's oldest geothermal power plants, with a history spanning several decades. The plant has been instrumental in the country's efforts to utilize its vast geothermal resources. With a capacity of 200 MW, Kamojang has been a vital contributor to Indonesia's energy mix, providing a reliable source of electricity while minimizing greenhouse gas emissions.

The new initiative to produce green hydrogen is part of a broader strategy to leverage geothermal energy for sustainable hydrogen production. This process involves using electricity generated from geothermal sources to power electrolyzers that split water into hydrogen and oxygen. The hydrogen produced in this manner is termed "green" because it is derived from renewable energy, thereby avoiding the carbon emissions associated with conventional hydrogen production methods that rely on fossil fuels.

According to recent reports, the Kamojang power plant aims to produce up to 1,000 kilograms of green hydrogen per day. This production capacity is expected to support various applications, including fuel cell vehicles, industrial processes, and energy storage solutions. The initiative aligns with Indonesia's commitment to reducing carbon emissions and increasing the share of renewable energy in its overall energy portfolio.

The Indonesian government has set ambitious targets for renewable energy, aiming for a 23% share of renewables in the national energy mix by 2025. The development of green hydrogen production at Kamojang is seen as a crucial element in achieving these goals. By utilizing geothermal energy, Indonesia can capitalize on its abundant natural resources while contributing to global efforts to combat climate change.

The production of green hydrogen also presents economic opportunities for Indonesia. As the global demand for hydrogen grows, particularly in sectors such as transportation and heavy industry, the country is well-positioned to become a key player in the emerging hydrogen economy. The Kamojang project is expected to attract investment and foster technological innovation, further enhancing Indonesia's role in the renewable energy landscape.

In addition to its environmental benefits, the green hydrogen initiative at Kamojang is anticipated to create jobs and stimulate local economies. The project will require a skilled workforce for its operation and maintenance, providing employment opportunities in the renewable energy sector. This aligns with Indonesia's broader goals of promoting sustainable development and improving the livelihoods of its citizens.

The successful implementation of green hydrogen production at the Kamojang geothermal power plant could serve as a model for similar projects across Indonesia and beyond. As countries around the world seek to transition to cleaner energy sources, the integration of geothermal energy with hydrogen production may become increasingly relevant. The Kamojang project exemplifies how renewable energy technologies can work in tandem to create a more sustainable energy future.

In conclusion, the initiation of green hydrogen production at the Kamojang geothermal power plant represents a significant milestone in Indonesia's renewable energy journey. By harnessing its geothermal resources, Indonesia is taking proactive steps towards a sustainable energy future while contributing to global efforts to mitigate climate change. The Kamojang project not only underscores the potential of geothermal energy but also highlights the importance of innovation and investment in the renewable energy sector.

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Renewable energy surge fuels need for pumped hydropower storage - Asian Power

Renewable energy surge fuels need for pumped hydropower storage - Asian Power

Published December 16, 2025

Renewable Energy Surge Fuels Need for Pumped Hydropower Storage

The rapid growth of renewable energy generation is creating an urgent demand for energy storage solutions, particularly pumped hydropower storage systems. As countries across Asia increasingly turn to renewable sources such as solar and wind to meet their energy needs, the intermittent nature of these resources poses significant challenges for grid stability and energy reliability. Pumped hydropower storage, a well-established technology, is positioned to play a critical role in addressing these challenges.

Pumped hydropower storage works by using excess energy to pump water from a lower reservoir to an upper reservoir during periods of low demand. When energy demand peaks, the stored water is released back down to the lower reservoir, passing through turbines to generate electricity. This method not only provides a reliable energy source but also offers grid operators the flexibility to balance supply and demand effectively.

Current Market Trends

According to a recent report from the International Hydropower Association (IHA), global installed pumped storage capacity reached approximately 160 gigawatts (GW) by the end of 2022. This figure accounts for around 95% of all energy storage capacity worldwide, highlighting the importance of pumped storage in the energy transition. The report also indicates that Asia is home to the largest share of this capacity, with China leading the way.

China's pumped storage capacity has grown significantly, exceeding 30 GW in recent years. The country aims to increase its renewable energy generation to 1,200 GW by 2030, which necessitates a robust energy storage infrastructure to ensure reliability and stability. The Chinese government has recognized the need for pumped storage as a key component of its energy strategy, with plans to invest heavily in new projects and upgrade existing facilities.

Regional Developments

In Southeast Asia, countries are also beginning to explore the potential of pumped hydropower storage. For instance, Vietnam is investing in several pumped storage projects to support its ambitious renewable energy goals. The country has set a target to generate 20% of its electricity from renewable sources by 2030, which will require substantial energy storage capabilities to manage the variability of solar and wind resources.

Similarly, Thailand is moving forward with its pumped storage initiatives as part of its long-term energy plan. The Electricity Generating Authority of Thailand (EGAT) is currently developing the 2,600 MW Upper Pa Sak project, which is expected to enhance the country's capacity to store energy and provide backup during peak demand periods.

Technological Advancements

Technological advancements in pumped storage systems are also contributing to their growing appeal. Innovations in turbine design, control systems, and materials are improving efficiency and reducing costs. For example, new turbine designs can operate effectively across a wider range of flow conditions, allowing for better performance during both peak and off-peak periods.

Moreover, the integration of digital technologies such as artificial intelligence (AI) and machine learning is enhancing the operational efficiency of pumped storage facilities. These technologies enable better forecasting of energy demand and supply, allowing operators to optimize energy storage and release strategies. As a result, pumped storage systems can respond more dynamically to fluctuations in renewable energy generation.

Environmental Considerations

While pumped hydropower storage is often viewed as a sustainable solution, it is essential to consider the environmental impacts associated with the construction and operation of these facilities. The creation of large reservoirs can disrupt local ecosystems and displace communities. Therefore, careful planning and assessment are necessary to mitigate these impacts.

In response to these concerns, some projects are exploring smaller-scale pumped storage options that minimize environmental disruption. These projects focus on utilizing existing water bodies and infrastructure to reduce the ecological footprint while still providing the necessary energy storage capacity.

Future Outlook

The future of pumped hydropower storage appears promising as the demand for energy storage solutions continues to rise. With the global push towards decarbonization and the increasing reliance on renewable energy sources, the role of pumped storage is expected to expand further. Analysts predict that the global pumped storage market will continue to grow, driven by investments in new projects and technological advancements.

Furthermore, as countries commit to net-zero emissions targets, the integration of pumped storage into national energy strategies will become increasingly vital. Policymakers are recognizing the importance of energy storage in achieving these goals, leading to a more supportive regulatory environment for pumped storage projects.

Conclusion

The surge in renewable energy generation across Asia is driving the need for effective energy storage solutions, with pumped hydropower storage emerging as a key player in this transition. As countries invest in new projects and upgrade existing facilities, the potential for pumped storage to enhance grid stability and support renewable energy integration will be critical. With ongoing technological advancements and a focus on sustainable practices, pumped hydropower storage is well-positioned to play a significant role in the future of the energy landscape.

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Sembcorp inks 25-year solar power deal - Asian Power

Sembcorp inks 25-year solar power deal - Asian Power

Published December 16, 2025

Sembcorp Enters Long-Term Solar Power Agreement

Sembcorp Industries has announced a significant development in its renewable energy portfolio by signing a 25-year solar power purchase agreement (PPA) with Singapore’s national water agency, PUB (Public Utilities Board). This agreement is a strategic move aimed at enhancing the sustainability of Singapore's water supply and aligns with the nation’s goals for a greener future.

The PPA will enable Sembcorp to supply solar energy to PUB's water treatment plants, significantly reducing the carbon footprint associated with water supply operations. The solar power generated through this agreement is expected to meet about 30% of PUB's total energy needs, thereby contributing to the agency's commitment to sustainability and reducing greenhouse gas emissions.

Under the terms of the agreement, Sembcorp will install solar photovoltaic (PV) systems across various PUB facilities, including water treatment plants and reservoirs. The total capacity of these solar installations is projected to reach 30 megawatts peak (MWp). This initiative is part of Sembcorp's broader strategy to expand its renewable energy footprint and support Singapore's transition to a low-carbon economy.

Details of the Solar Power Project

The project will see the deployment of solar panels on the rooftops and available land at PUB’s facilities. It is anticipated that these solar installations will generate approximately 40,000 megawatt-hours (MWh) of clean energy annually. This output is equivalent to the energy consumption of about 10,000 households in Singapore for a year.

In addition to generating renewable energy, the project is designed to enhance PUB's operational efficiency. By utilizing solar power, PUB aims to lower its reliance on fossil fuels, which will contribute to the overall reduction of carbon emissions in the region.

"This partnership with Sembcorp is a significant step forward in our efforts to integrate renewable energy into our operations," said a spokesperson from PUB. "By harnessing solar energy, we are not only ensuring a more sustainable water supply but also setting an example for other agencies and organizations in Singapore."

Broader Implications for Renewable Energy in Singapore

The agreement is aligned with Singapore’s national objectives to increase the share of renewable energy in its overall energy mix. The country has set an ambitious target to produce at least 2 gigawatt-peak (GWp) of solar energy by 2030. This goal is part of Singapore's commitment to the Paris Agreement and its efforts to combat climate change.

As part of its renewable energy strategy, Singapore is also exploring various avenues to enhance energy efficiency and sustainability. The government has been actively promoting solar energy through initiatives such as the SolarNova program, which encourages the installation of solar panels on public sector buildings.

Sembcorp's partnership with PUB is a testament to the growing collaboration between public and private sectors in advancing renewable energy projects. The company has been at the forefront of renewable energy development in Asia, with a diverse portfolio that includes solar, wind, and energy storage solutions.

Future Prospects for Sembcorp

Looking ahead, Sembcorp is committed to further expanding its renewable energy capacity both in Singapore and internationally. The company has outlined plans to increase its renewable energy portfolio to 10 GW by 2025, focusing on solar and wind projects across Asia and other markets.

Sembcorp's investment in renewable energy not only aligns with global trends towards sustainability but also positions the company as a leader in the transition to a low-carbon economy. The firm has been actively engaging in various renewable energy projects, including large-scale solar farms and wind power installations, to diversify its energy offerings.

With the signing of this long-term solar power deal, Sembcorp is poised to play a pivotal role in supporting Singapore's green energy ambitions while also securing a stable revenue stream from its renewable energy operations.

Conclusion

The 25-year solar power purchase agreement between Sembcorp and PUB marks a significant milestone in Singapore's renewable energy journey. It reflects the growing importance of sustainable practices in the public sector and highlights the potential for solar energy to contribute to the country's energy needs.

This partnership not only aims to provide a reliable source of clean energy but also sets a precedent for future collaborations in the renewable energy sector. As Singapore continues to push towards its renewable energy targets, initiatives like this will be crucial in achieving a sustainable and resilient energy future.

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