Indonesia to build floating solar power plants on two dams, targets operation in 2027

  • Published on 18/03/2025 GMT+7

  • Reading time 2 minutes

  • Author: Julian Isaac

  • Editor: Imanuddin Razak

Banggaindonesia.com

PLTS

The Ministry of Public Works will utilize two dams, one of which is the Jati Dam in West Java, to install floating solar power plants (PLTS) with a target of operation in 2027.

Director General of Water Resources at the Ministry of Public Works, Lilik Retno Cahyadiningsih, said the floating PLTS project will work together with the state electricity company, PLN. However, the utilization process is still in the identification stage.

"It might take another two to three years for the floating PLTS to operate. If there is a dam that is important and prioritized for operation by PLN, maybe the operating time can be expedited," Lilik said on Monday, March 17, 2025.

The Jatigede Dam located in West Java produces energy with a power of twice 55 Megawatts (MW) through the Jatigede Hydroelectric Power Plant. This dam also has the potential for a 100 MW floating PLTS that can be connected to the Jatigede Main Substation.

Then Minister of Public Works and Public Housing (PUPR) Basuki Hadimuljono previously said that dams in Indonesia have the potential to generate electricity using the floating PLTS method utilizing more than 20 percent of the dam's surface area.

Previously, on November 9, 2023, Indonesia's 7th President, Joko “Jokowi” Widodo inaugurated the Cirata Floating Solar Power Plant with a capacity of 192 MW, which is the largest solar power plant in Southeast Asia.

Basuki recorded that 43 dams have the potential to generate hydroelectric power of 258 MW. Among others are: Way Sekampung Dam (5.40 MW) in Lampung, Jatigede Dam (110 MW), Leuwikeris Dam (20 MW) in West Java.

Before 2015, the PUPR Ministry had built 23 dams that were used as hydroelectric power plants with a total capacity of 507 MW. This infrastructure includes the Batutegi Dam (28 MW) in Lampung, Jatiluhur Dam (150 MW) in West Java and Bili-Bili Dam (20.1 MW) in South Sulawesi.

"In addition, we plan to build 11 additional dams in 2021-2027 which have a hydroelectric power generation potential of 122 MW," Basuki said on November 22, 2024.

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