Construction 2026-11-12

Indonesia's 100 GWp Solar Program Draws Chinese Interest With Rp1,140 Trillion Investment Estimate

The national electricity plan requires Rp2,967 trillion in investment through 2034, with roughly 48,000 km of new transmission lines and 108,000 MVA of substation capacity on top of the solar program.

Indonesia's plan to develop 100 GWp of solar capacity has drawn interest from Chinese investors, with the program's investment estimated at Rp1,140 trillion and up to 2.8 million construction-phase jobs, according to detikFinance reporting on 11 November citing officials.

The solar program sits on top of the 2025-2034 electricity supply business plan (RUPTL), which requires Rp2,967 trillion in investment for 69.5 GW of new generation capacity. Transmission needs are separately sized at roughly 48,000 kilometers of new lines plus substations totaling about 108,000 MVA. To date, around 35 GWp of the solar pipeline has been mapped through 2029.

For the construction sector, the figures size one of the largest infrastructure workloads in the national plan: transmission projects cross difficult terrain where progress documentation, right-of-way compliance and construction supervision remain labor-intensive.