Market dynamics reflect convergence of favorable trends including module price stabilization around IDR 2,355-2,826 per watt (USD 0. 18 per watt) following supply chain adjustments, improved project economics enabling competitive bidding without subsidies for many. The Indonesia Solar Energy Market is expected to grow from 2. 97 gigawatt in 2026 and is forecast to reach 14. Jakarta's pivot from diesel subsidies toward grid-scale and distributed photovoltaic systems, the 5. 746 GW rooftop. In a new weekly update for pv magazine, OPIS, a Dow Jones company, reports that US-assembled modules with imported cells continue to be heard between $0. 33/W, while modules with domestic content – which are still limited to just a handful of producers – are generally quoted between. Declining module prices and continuous improvements in conversion efficiency are strengthening solar competitiveness against conventional power sources. 1 The average annual solar output per kWh of installed solar PV in Surabaya is within 1,821 – 2,051 kWh/kWp. 6 GW by end of 2026, representing 180% increase from 1.
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Solar PV accounted for 100.00% of the Indonesian solar energy market size in 2025 and is forecast to advance at a 38.10% CAGR through 2031. CSP remains commercially unviable because most Indonesian sites record 1,400-1,600 kWh/m² DNI, which is well below the 2,000 kWh/m² threshold that CSP needs to remain competitive.
Why does Indonesia have a higher EPC cost than PT LEN Industri?
MEMR Decree 191/2024 trimmed the TKDN threshold to 20%, yet developers still face 12-18% higher EPC costs because Indonesia lacks polysilicon and wafer plants, leaving PT Len Industri's 600 MW line as the chief compliant source.
Another assessment by the CRO Forum rated Indonesia's electric power reliability at 4 out of 7, further highlighting the issue. These reliability concerns have led to end-user dissatisfaction, with some individuals considering installing backup power generators in their homes to ensure a stable electricity supply.