The Indonesian government plans to increase electricity generation capacity by approximately 40,600 megawatts (MW) between 2021 and 2030.
This is recorded in the 2021-2030 Electricity Supply Business Plan (RUPTL) from Perusahaan Listrik Negara (PLN), Indonesia's state-owned electricity company.
The additional 40,600 MW is projected to come from increased capacity of PLN's power plants, private/independent power producers (IPPs), and collaborations between PLN and other parties.
Coal-fired power plants (PLTU) are planned to have the largest capacity increase.
According to the RUPTL, by the end of 2020, the installed capacity of PLTU in Indonesia had reached 31,700 MW.
Over the next decade, PLTU capacity is projected to increase by 13,800 MW, reaching a total capacity of 45,000 MW in 2030, equivalent to 44% of the total national electricity generation capacity.
After PLTU, the power plants with the largest installed capacity by 2020 were gas/gas steam/gas engine power plants (PLTG/GU/MG), at approximately 18,400 MW.
During the 2021-2030 period, PLTG/GU/MG capacity is projected to increase by 5,800 MW, reaching a total of 24,000 MW. This represents 23% of the total national electricity generation capacity.
Meanwhile, the new and renewable energy (EBT) power plant with the largest planned increase is hydropower/microhydro/pumped storage (PLTA/M/PS).
Over the next decade, PLTA/M/PS capacity is projected to increase by 10,400 MW, reaching a total of 15,600 MW by the end of 2030, equivalent to 15% of the total national electricity generation capacity.
The planned additions for geothermal power plants (PLTP), solar power plants (PLTS), diesel power plants (PLTD), other EBT power plants, and EBT base are significantly smaller than for PLTU, as shown in the graph above.
According to the RUPTL, other EBT power plants include wind, ocean, biomass, biogas, biofuel, waste, fuel cell, and other power plants.
EBT base refers to a combination of EBT power plants with natural gas.