On Sumbawa Island, the IESR outlines a two-phase strategy: replacing planned fossil fuel projects with renewable energy between 2025 and 2035, followed by fuel substitution from 2036 to 2050 to fully eliminate fossil generation.
Timor Island, with 30.81 GW of renewable energy potential, also features a dual-phase strategy. In the short term, coal- and gas-fired projects outlined in Indonesia’s electricity plan would be substituted with renewables. By 2050, IESR projects that Timor’s power system will be composed of 82 per cent solar energy, supported by mini-hydro (9 per cent), wind (6 per cent), and biomass (3 per cent).
The report stresses that the success of these plans hinges on strong local government ambition, legal reform in energy planning, and transparent procurement processes.