This is part of PLN’s ambition to achieve carbon neutrality by 2060, its deputy director, Darmawan Prasodjo, said during a televised hearing in parliament.
The Indonesian government aims for 23% of energy to come from renewable sources by 2025, up from around 11% last year, but progress on renewable projects has been slow.
“We are establishing a timetable for phasing out coal-fired power plants,” Darmawan said.
The first phase will see the closure of three coal-fired power plants by 2030 with a combined capacity of 1.1 gigawatt.
These are the Muara Karang power station in the capital Jakarta, the Tambak Lorok power station in Semarang, the largest city in Central Java, and a gas and coal power station in Gresik, a regency of East Java.
In 2035, PLN aims to retire its conventional power plants which have a total capacity of 9 gigawatts, Darmawan said.
By 2040, “supercritical” coal-fired power plants, or those using less polluting technologies, with a total capacity of 10 gigawatts, will be closed.
The final phase of the coal retreat will see its “ultra supercritical” coal plants shut down by 2056.
“Then we will achieve carbon neutrality in 2060,” said Darmawan.
The fourth most populous country in the world has a potential capacity of more than 400 gigawatts for sources like hydropower, solar and geothermal energy, but only about 2.5% had been used in 2020, according to government data.
Despite the push for greener energy use, President Joko Widodo last year urged ministers to speed up plans to build factories to modernize the country’s downstream coal sector.