Salak Geothermal power plant- Indonesia, overview

 Salak Geothermal power plant

 Sustainable Energy 

 Geothermal 

5 minutes read

Salak Geothermal power plant- Indonesia

The Salak Geothermal Power Plant is a geothermal power plant located in West Java, Indonesia. It is owned and operated by PT Pertamina Geothermal Energy, a subsidiary of the state-owned oil and gas company, Pertamina.

Salak Geothermal Power Plant - Indonesia

Location: Bogor, West Java, Indonesia Type: Geothermal Power Plant (PLTP) Technology: Flash steam and binary cycle Capacity: 375 MW (expandable) Owner: Star Energy Geothermal Salak Ltd (Joint venture with PT Pertamina Geothermal Energy) Status: Operational Commissioning Year: Various stages from the 2000s Annual Generation: Approximately 2,500 GWh (estimate, may vary depending on operating conditions)

FeatureDescription
LocationBogor, West Java, Indonesia
TypeGeothermal Power Plant (PLTP)
TechnologyFlash steam and binary cycle
Capacity375 MW (expandable)
OwnerStar Energy Geothermal Salak Ltd (Joint venture with PT Pertamina Geothermal Energy)
StatusOperational
Commissioning YearVarious stages from the 2000s
Annual GenerationApproximately 2,500 GWh (estimate, may vary depending on operating conditions)

Key Points:

  • One of the largest geothermal power plants in Indonesia: Salak is one of the largest geothermal power plants in Indonesia and plays a significant role in the national energy mix.
  • Diverse technology: Uses a combination of flash steam and binary cycle technologies to utilize various geothermal heat sources.
  • Continuous development: Ongoing development projects are aimed at increasing the capacity and efficiency of the Salak geothermal power plant.
  • Contribution to clean energy: The Salak power plant significantly contributes to reducing greenhouse gas emissions and increasing the use of renewable energy in Indonesia.

Additional Information:

  • Development potential: There is still significant potential for further development of the Salak geothermal power plant in the future.
  • Socioeconomic impact: The Salak power plant contributes positively to the local economy and creates jobs.
  • Challenges: Like other geothermal power plants, Salak faces challenges such as wastewater management and seismic monitoring.

Note: The annual electricity generation data is an estimate and may vary depending on operating conditions and other factors.


Sources: This information was gathered from various sources, including company reports, scientific publications, and energy databases.

Disclaimer: The information provided above is general and may change over time. For more specific and up-to-date information, it is recommended to refer to official sources.


The Salak Geothermal Power Plant was built in the 1990s, and it began commercial operation in 1994. The plant has a total installed capacity of 377 MW, making it one of the largest geothermal power plants in the world.

The Salak geothermal field is located in the area surrounding Mount Salak, and it is one of the largest geothermal fields in Indonesia, with estimated reserves of over 1 GW. The field is characterized by high temperatures and pressures, and it contains both liquid and vapor-dominated reservoirs.

The Salak Geothermal Power Plant is an important contributor to Indonesia's energy mix, providing a significant amount of electricity to the Java-Bali power grid. In addition to its commercial operation, the plant is also involved in research and development activities related to geothermal energy, including exploration, drilling, and reservoir management.

Overall, the Salak Geothermal Power Plant represents an important investment in Indonesia's energy infrastructure, and it has helped to establish the country as a global leader in geothermal energy development. Geothermal power is an important source of renewable energy in Indonesia, and the government has set ambitious targets for the development of geothermal energy in the country.


History of Salak Geothermal power plant- Indonesia

The Salak Geothermal Power Plant has a relatively long history, dating back to the 1970s when the Indonesian government began exploring the country's geothermal resources as a potential source of electricity.

In the early 1980s, a consortium of companies including Unocal and Chevron began developing the Salak geothermal field. The first exploratory well was drilled in 1983, and by the mid-1980s, the consortium had drilled several more wells and completed a pilot plant.

In 1987, the Indonesian government awarded Pertamina, the state-owned oil and gas company, a contract to develop the Salak geothermal field. Pertamina formed a subsidiary, Pertamina Geothermal Energy, to manage the project.

Construction of the Salak Geothermal Power Plant began in the early 1990s, and the plant began commercial operation in 1994. At the time, it was one of the largest geothermal power plants in the world, with an installed capacity of 270 MW. In the years since, additional units have been added to the plant, bringing its total installed capacity to 377 MW.

Today, the Salak Geothermal Power Plant is a key component of Indonesia's energy mix, providing a significant amount of electricity to the Java-Bali power grid. The plant is also involved in research and development activities related to geothermal energy, and it has helped to establish Indonesia as a global leader in geothermal energy development.


Salak Geothermal power plant- Indonesia, operated by

The Salak Geothermal Power Plant in Indonesia is operated by PT Pertamina Geothermal Energy (PGE), a subsidiary of PT Pertamina (Persero). Pertamina Geothermal Energy is the largest geothermal energy producer in Indonesia, with a total installed capacity of more than 1,300 MW. The Salak Geothermal Power Plant is located in the Mount Salak area in West Java, Indonesia and has a capacity of 377 MW, making it one of the largest geothermal power plants in the world.


Salak Geothermal power plant- Indonesia, financial and international investment

The Salak Geothermal Power Plant in Indonesia has received financial and international investment support over the years.

In 2014, the Japan International Cooperation Agency (JICA) provided a loan of JPY 19.98 billion (approximately USD 192 million) for the expansion of the Salak Geothermal Power Plant. The loan was provided under the scheme of "Project Finance for Japanese Companies Overseas," which aims to promote Japanese technology and know-how overseas.

In addition, in 2016, the International Finance Corporation (IFC), a member of the World Bank Group, provided a loan of USD 150 million to PT Pertamina Geothermal Energy for the development of its geothermal power plants, including the Salak Geothermal Power Plant. The loan was aimed at helping Indonesia meet its growing energy demands while reducing its carbon footprint.

The Salak Geothermal Power Plant has also received investment from other international financial institutions, such as the Asian Development Bank (ADB), the European Investment Bank (EIB), and the Multilateral Investment Guarantee Agency (MIGA).

These financial and international investment support have helped to develop and expand the Salak Geothermal Power Plant, making it a significant contributor to Indonesia's renewable energy mix.


Salak Geothermal power plant- Indonesia, energy contribution

The Salak Geothermal Power Plant in Indonesia is a significant contributor to the country's renewable energy mix. With a capacity of 377 MW, it provides a substantial amount of electricity to the grid, helping to meet Indonesia's growing energy demands.

According to PT Pertamina Geothermal Energy, the Salak Geothermal Power Plant generated more than 2,900 GWh of electricity in 2020, which is equivalent to the electricity consumption of around 1.1 million households in Indonesia. The plant's contribution to the country's energy mix also helps to reduce carbon emissions, as geothermal energy is a clean and renewable source of power.

Overall, the Salak Geothermal Power Plant plays a vital role in Indonesia's efforts to increase its renewable energy capacity and reduce its dependence on fossil fuels. The country has set a target of achieving 23% renewable energy in its energy mix by 2025, and geothermal energy is expected to play a significant role in achieving this target.

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