Indonesia’s renewable energy share in electricity generation reached 17.89 per cent in April 2026, surpassing the government’s full-year target of 16.46 per cent. Renewable electricity production totalled 29.62 terawatt-hours during the first four months of the year, reflecting steady growth from 14.65 per cent in 2024 and 15.75 per cent in 2025. The increase has been supported by the commissioning of new renewable energy projects, including hydroelectric power plants connected to the national grid.
Hydropower remains Indonesia’s largest renewable energy source, followed by biomass and geothermal energy, while solar power is recording the fastest growth due to falling photovoltaic costs and the expansion of rooftop solar installations. Sumatra has emerged as a leading renewable energy region, with clean energy accounting for 41.76 per cent of its electricity generation through abundant hydro, geothermal and biomass resources. Under the national Electricity Supply Development Plan 2025–2034, renewable energy is expected to account for approximately 76 per cent of all new electricity generation capacity.
The rapid expansion of renewable energy is strengthening Indonesia’s energy transition while attracting greater interest from international investors. The government continues to prioritise the expansion of transmission infrastructure and the gradual reduction of coal dependence as it advances long-term decarbonisation and supports sustainable growth in the national power sector.