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Powering Indonesia’s Future with Geothermal Energy

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15 Jan, 2025

This post was originally published on Climate Links

Powering Indonesia’s Future with Geothermal Energy
jschoshinski
Tue, 01/14/2025 – 16:19

Indonesia ranks second behind the U.S. in installed geothermal capacity and is home to some of the world’s largest geothermal reserves. However, despite its vast geothermal potential, Indonesia faces challenges in securing financing and navigating regulatory hurdles for large-scale geothermal projects. One such project, the Ijen geothermal power plant in East Java, experienced delays after initial agreements in 2013, with investors pulling out and development stalling. Given Ijen’s importance in the nation’s energy transition and its inclusion in Indonesia’s 10-year Electricity Supply Business Plan, it was critical that the project secure funding to help Indonesia meet its clean energy goals.  

USAID played a pivotal role in overcoming these barriers by providing essential transaction advisory services to the project financing lender Indonesian infrastructure bank PT Sarana Multi Infrastruktur (PT SMI). Through the USAID Sustainable Energy for Indonesia’s Advancing Resilience (USAID SINAR) activity, USAID provided legal due diligence, identified development risks, and prepared term sheets, facility agreements, and corporate approvals. With the Agency’s support, the Ijen project is expected to leverage $227 million in financing and achieve generation capacity of 110 MW, helping to strengthen Indonesia’s energy security. 

In 2024, the U.S. International Development Finance Corporation (DFC) announced a commitment of up to $126 million for Indonesian geothermal developer PT Medco Cahaya Geothermal (MCG) to support the first phase of development at Ijen. DFC’s commitment  is in cooperation with PT SMI, which signed its own financing agreement with MCG in 2023.  

The first phase of the Ijen geothermal project, which will generate 31 MW of renewable energy capacity to the interconnected Java-Bali grid, is now on track for commercial operation by the end of this month. Once operational, the plant will provide a low-carbon energy source to two of the country’s most populous regions, helping Indonesia reduce its reliance on coal and decrease its carbon emissions. This achievement aligns with USAID’s regional priorities of advancing clean energy, reducing greenhouse gas emissions, and enhancing energy resilience in Southeast Asia.

The success of the Ijen geothermal project highlights the importance of transaction advisory services, innovative financing, and strategic partnerships in overcoming financial and regulatory hurdles for renewable energy projects. Innovative financing leverages U.S. Government, Government of Indonesia, and private sector investments to support the development of renewable energy infrastructure, ultimately advancing the energy transition towards a more sustainable future. Future energy transition efforts in Indonesia will benefit from similar approaches, emphasizing the need for strong public-private partnerships and clear legal frameworks to accelerate the deployment of advanced energy technologies.

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The USAID Sustainable Energy for Indonesia’s Advancing Resilience (USAID SINAR) activity provided support to the Ijen project, which is expected to leverage $227 million in financing and achieve generation capacity of 110 MW.

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Tue, 01/14/2025 – 12:00

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Published in Science, the research combined global soil moisture data estimated by the European Centre for Medium-Range Weather Forecast (ECMWF) Reanalysis v5 (ERA5), global mean sea level measurements and observations of Earth’s pole movement in order to estimate changes in terrestrial (land) water storage (TWS) from 1979 to 2016.

“The study raises critical questions about the main drivers of declining water storage on land and whether global lands will continue to become drier,” University of Melbourne author Professor Dongryeol Ryu said.

“Water constantly cycles between land and oceans, but the current rate of water loss from land is outpacing its replenishment. This is potentially irreversible because it’s unlikely this trend will reverse if global temperatures and evaporative demand continue to rise at their current rates. Without substantial changes in climate patterns, the imbalance in the water cycle is likely to persist, leading to a net loss of water from land to oceans over time.”

Between 2000 and 2002, soil moisture decreased by around 1614 gigatonnes (1 Gt equals 1 km3 of water) — nearly double Greenland’s ice loss of about 900 Gt in 2002–2006. From 2003 to 2016, soil moisture depletion continued, with an additional 1009 Gt lost.

Soil moisture had not recovered as of 2021, with little likelihood of recovery under present climate conditions. The authors say this decline is corroborated by independent observations of global mean sea level rise (~4.4 mm) and Earth’s polar shift (~45 cm in 2003–2012).

Water loss was most pronounced across East and Central Asia, Central Africa, and North and South America. In Australia, the growing depletion has impacted parts of Western Australia and south-eastern Australia, including western Victoria, although the Northern Territory and Queensland saw a small replenishment of soil moisture.

Image credit: iStock.com/ZU_09

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