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View all search resultsGeothermal plant of 91 MW begins operations in S. Sumatra
Thirteen years since exploration began, the Rantau Dedap I geothermal power plant started commercial operations in December 2021.
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P
ower producer PT Supreme Energy announced on Monday that the Rantau Dedap I geothermal power plant (PLTP) in South Sumatra had begun commercial operations.
The power plant has been operating since Dec. 26, 2021, with a capacity of 91.2 megawatts (MW). State electricity company PLN will provide a transmission network to distribute plant electricity to consumers.
PLTP Rantau Dedap is operated by PT Supreme Energy Rantau Dedap (SERD) — a joint venture between Supreme Energy, French utility company ENGIE and Japanese firms Marubeni and Tohoku Electric Power. SERD began exploration of the Rantau Dadap site in 2008.
“Rantau Dedap is a tremendously challenging project because of its location and construction that took place amid the COVID-19 pandemic,” said Supreme Energy founder Supramu Santosa in a press statement.
He went on to say that the project was located in remote, steep highlands with an elevation of 2,600 meters above sea level. The power plant sites are located in three administrative areas, namely Muara Enim regency, Lahat regency and Pagar Alam city in South Sumatra.
The total investment for the first phase of development of the Rantau Dedap power plant was more than US$700 million, the statement noted.
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The company signed a sales and purchase agreement in 2012 for the duration of 30 years and reached a financial close for the first development phase of the Rantau Dedap plant in 2018.
The Rantau Dedap I geothermal plant is expected to reduce carbon emissions by 486,000 tons per year.
Supreme Energy has also operated an 86 MW geothermal power plant in Muara Laboh, West Sumatera since 2019. The company plans to develop two more geothermal plants, namely a second unit in Muara Laboh with a capacity of 80 MW and the Rajabasa PLTP in Lampung, which is in the exploration phase.
Indonesia, which holds the world’s largest geothermal reserves, is aiming to have a total of 3.35 gigawatts (GW) of geothermal power production capacity by 2030, according to PLN's long-term electricity procurement plan (RUPTL).
Read also: Low tariffs still hinder geothermal power growth in Indonesia
Out of a potential total of 23.7 GW in geothermal resources, only 9.2 percent, 2.18 GW, has been utilized, while 1.33 GW has been allocated for expansion plans until 2035, energy ministry data show.
