Installed Rooftop Solar Power Plant Capacity to Reach 495 MW in the First Half of 2025

Illustration. (Photo: Doc. Antara)

JAKARTA - Andriah Feby Misna, Director of New and Renewable Energy at the Directorate General of New, Renewable Energy, and Energy Conservation at the Ministry of Energy and Mineral Resources, reported that the installed capacity of rooftop solar power plants (PLTS) reached 495 megawatt peak (MWp) by June 2025.

Feby stated that 10,700 PLN customers across Indonesia had installed rooftop solar power plants.

"The installed capacity as of June 2025 was approximately 495 MWp from 10,700 PLN customers," Feby said at a media briefing in Jakarta on Tuesday, September 2.

She continued, saying the government is targeting an installed capacity of 1,000 MWp, or 1 gigawatt peak (GWp), by the end of 2025. According to her, there is still a queue of applications for rooftop solar power installations at the Ministry of Energy and Mineral Resources.

"Because there are quite a lot of projects still in the pipeline and under development, we hope to reach 1 GW of rooftop solar power plants this year, excluding other solar power plants," he explained.

According to data from the Ministry of Energy and Mineral Resources (KemensDM), the total installed capacity of rooftop solar power plants reached 538 MWp as of July 2025. The number of customers has also increased from the previous month to 10,882 customers of PT PLN (State Electricity Company).

The Ministry of Energy and Mineral Resources has set a quota of 2 GW of rooftop solar power plant capacity by 2028. The largest allocation is for Java, Madura, and Bali, with 1.85 GW, followed by Kalimantan with 104 MW.

Sumatra is allocated 95 MW by 2028, Sulawesi with 17 MW, and Maluku, Papua, and Nusa Tenggara with 7 MW.

Overall, solar energy utilization as of December 2024 was only 916 MW. Indonesia is predicted to have enormous solar potential, reaching 3,294 GW, equivalent to 3.29 terawatts (TW).

Feby hopes that 2025 will mark the first 1 GW of solar energy utilization in Indonesia, whether through rooftop solar power plants or floating solar power plants.

"If we look at the potential, there's approximately 3.3 TW, but only 916 MW has been utilized. Therefore, the government is indeed striving to continue to encourage future programs to accelerate solar energy development," Feby concluded.