Indonesia's energy transition hinges on strategic reforms amid financing and governance hurdles

Indonesia faces a pitched test in turning an electricity system built around a state monopoly into one capable of rapid decarbonisation. According to the analysis by East Asia Forum, Perusahaan Listrik Negara (PLN) still controls generation, transmission and distribution, and in 2024 renewables accounted for only 14.6 per cent of the power mix. Coal supplies roughly two thirds of electricity and fossil fuels more than 80 per cent, leaving the sector highly carbon intensive and responsible for a large share of national emissions.

The government has set out an ambitious expansion under the Electricity Supply Business Plan (RUPTL) for 2025–34 that aims to add 69.5 gigawatts (GW) of capacity and shift a substantial share of new build toward renewables. Antara reported that about 42.6GW of that increase is expected to come from new and renewable energy, with roughly 10.3GW earmarked for storage, while Invest Indonesia and RUPTL documents place total investment needs at around IDR 2,967.4 trillion (about US$184 billion) over the decade. The plan envisages a large role for private developers , the RUPTL projects that about 71 per cent of planned generation capacity will be delivered by independent power producers.

Yet delivering the RUPTL’s aspirations requires overcoming deep structural constraints the East Asia Forum piece identifies: chronic under‑investment since 2021, short‑term financing, high project costs and onerous local content rules. The lead article highlights a striking shortfall in 2024 finance: only US$1.7 billion was secured compared with an estimated requirement of roughly US$18 billion a year. Those financing gaps sit alongside governance fragmentation, protracted permitting and contested land rights across more than 17,000 islands, all of which raise development risks for utility‑scale renewable projects and increase the likelihood of curtailment where transmission cannot keep pace.

The RUPTL sits within a broader, long‑range policy architecture. The Ministry of Energy and Mineral Resources issued a national power system regulation through 2060 that sets a long‑term target of 73.6 per cent of electricity supply from clean energy by 2060, according to S&P Global. The government has also reported progress against shorter term decarbonisation goals: the ministry said in March 2025 that the energy sector reduced emissions by 147.61 million tonnes of CO2 in 2024, exceeding a 2024 target of 142 million tonnes. Those signals anchor the political commitment to net zero by 2060 but do not by themselves resolve the near‑term obstacles to delivering capacity and modernising grids.

Practical lessons emerge from regional experience and recent domestic measures. The East Asia Forum analysis juxtaposes China’s model , where state entities were restructured to allow generator competition within a centrally coordinated planning framework , with Vietnam’s and the Philippines’ mixed outcomes. Vietnam’s rapid solar and wind build after generous feed‑in tariffs outpaced grid reinforcement, producing curtailment; the Philippines’ early market liberalisation without strong regulation left price volatility and limited renewable uptake. The implication for Jakarta is clear: sequencing matters. Market opening focused solely on competition risks replicating these shortcomings; reforms should combine clearer regulatory frameworks, strengthened system planning and orderly commercialisation of state assets so that PLN can shift toward a system‑integration role while preserving public‑service obligations.

There are, however, signs of pragmatic, incremental change within Indonesia’s existing system. PLN Indonesia Power reported in February 2025 that cofiring biomass in coal plants generated some 814 GWh of “green energy” in 2024 and cut roughly 921,119 tonnes of CO2 by substituting biomass feedstock such as wood pellets, rice husks and palm shells for coal. That programme illustrates how incumbents can reduce emissions inside the current state‑centred model while grid expansion and private investment scale up to accommodate variable renewables. PLN’s leadership has also framed the RUPTL as an economic lever: the company’s president director was reported projecting in June 2025 that the IDR 3,000 trillion of electricity projects under the plan could lift annual GDP growth by up to 1.4 percentage points.

Policy and legal constraints rooted in Indonesia’s constitutional framework complicate liberalisation. The 1945 Constitution and subsequent court rulings treat land, water and natural resources as state assets to be managed for public benefit and interpret electricity as an essential public service, limiting the scope for full privatisation. As the East Asia Forum piece argues, those political and legal realities make wholesale deregulation neither feasible nor necessarily desirable; instead, reform must remodel the state’s role to increase system capability and market credibility without abandoning public obligations.

For industrial decarbonisation stakeholders, the implications are concrete. Accelerated uptake of wind, solar and storage will require: coordinated spatial planning that eases land acquisition and reduces curtailment outside Java; clearer, stable tariff and procurement frameworks to restore investor confidence; targeted grid investment timed to generation build‑out; and careful handling of legacy coal contracts that currently constrain dispatch flexibility and impose fiscal risk. Incentives should be matched by regulatory capacity to ensure transparent contract design and market rules that prevent concentration and protect consumers.

Indonesia’s 2060 target and the RUPTL set an ambitious direction. But as domestic achievements such as biomass cofiring and the ministry’s 2024 decarbonisation numbers show, progress will be incremental and politically mediated. The most credible path, the analysis concludes, is strategic, sequenced reform that reshapes PLN’s mandate toward system integration, strengthens regulation and modernises the grid , not abrupt market liberalisation unmoored from the institutions needed to manage a complex energy transition.