Indonesia Renewable Energy Market Size, Share and Forecast Trends - Growth Analysis and Outlook Report 2026-2030

Indonesia's renewable energy market occupies a pivotal position in Southeast Asia's energy transition, with a market size of $1.6 billion in 2025 on a trajectory toward $1.9 billion in 2026. The sector encompasses a diverse mix of generation technologies including geothermal, hydropower, solar photovoltaic, wind, and bioenergy, reflecting the country's geographic and resource diversity. As the largest economy in Southeast Asia and a G20 member, Indonesia's energy decisions carry significant regional and global weight.

• •Market valued at $1.6 billion in 2025, forecast to reach $4.9 billion by 2033
• •Electricity generation from renewables stood at 57.0 TWh in 2025, projected to reach 118.6 TWh by 2034
• •Indonesia holds the world's largest geothermal energy potential at an estimated 28 GW

Indonesia's rapidly growing economy and expanding middle class are driving electricity demand upward, creating a compelling case for scaling up domestic renewable generation. The government's legally binding targets under RUEN, 23% renewable share by 2025 and 31% by 2030, provide a clear policy framework, though implementation gaps remain. International climate finance mechanisms, including Green Climate Fund allocations and Asian Development Bank lending facilities, are increasingly funding project development across the archipelago.

• •Government mandate to lift renewable energy share to 31% of the energy mix by 2030
• •Declining costs of solar PV and battery energy storage systems improving project economics
• •Access to international financing from multilateral development banks and climate funds

Geothermal energy dominates Indonesia's renewable portfolio, benefiting from the country's position on the Pacific Ring of Fire, followed by substantial hydropower resources concentrated in Sumatra, Java, and Sulawesi. Solar and wind capacity are growing fastest in eastern regions such as East Nusa Tenggara and South Sulawesi, where grid infrastructure is being developed in tandem with generation. Java-Bali accounts for the largest share of installed capacity due to its dense population and industrial base, while outer islands are increasingly targeted for off-grid and mini-grid renewable solutions.

• •Geothermal leads installed capacity, with over 2.4 GW operational and significant expansion underway
• •Java-Bali grid hosts the majority of existing renewable capacity; eastern regions are emerging fast
• •Floating solar projects and offshore wind pilots are gaining traction in coastal and reservoir areas

What are the recent trends and outlook?

Indonesia is positioning itself as a regional clean energy manufacturing and technology hub, with domestic solar panel production and battery storage capacity expanding under industrial policy incentives. The planned phase-down of coal-fired power and the government's Just Energy Transition Partnership (JETP) with international partners are expected to unlock tens of billions in financing for renewable and decarbonization projects. Digitalization of grid operations, hybrid renewable-plus-storage systems, and green hydrogen pilot projects represent emerging investment themes through the early 2030s.

• •Just Energy Transition Partnership aims to cap coal power and accelerate renewable deployment
• •Domestic solar manufacturing and green hydrogen pilots attracting foreign direct investment
• •Grid modernization and battery storage integration critical to managing variable renewable output