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Whilst visiting Ambon City, Maluku Province on Apr. 5, 2025, Energy and Mineral Resources (ESDM) Minister Bahlil Lahadalia ordered electricity state-owned enterprise (SOE) PT Perusahaan Listrik Negara (PLN) to swiftly build 40 megawatts (MW) of geothermal power plant (GTPP) capacity in Maluku.
Bahlil said that Maluku Province has a potential energy output of 40 MW from geothermal energy that needs to be developed immediately. He emphasized that the GTPP project has been included in the draft of PT PLN's 2025-2034 Electricity Supply Business Plan (RUPTL).
"No longer dependent on diesel. No longer dependent on coal," said Bahlil.
The GTPP projects in Maluku in question include the 20 MW Wapsalit GTPP on Buru Island and the 2x10 MW Tulehu GTPP on Ambon Island. The Wapsalit GTPP is currently still in the exploration stage by private developers, with 2028 as its commercial operation date (COD). Meanwhile, the Tulehu GTPP is currently in the procurement stage by PT PLN and is targeted to COD in 2031.
In addition, there is geothermal energy potential within Seram Island, namely in Banda Baru Village, Amahai District, Central Maluku Regency, which could be developed into a 25 MW GTPP according to the results of a survey by the ESDM Ministry's Geological Agency.
Currently, the electricity system in Maluku is still very dependent on fossil fuel-based power plants. Based on 2024 data, the total power generation capacity in the province reaches 409 MW. Of this amount, around 99 percent or 406 MW still comes from fossil fuel sources. Diesel power plants are the largest contributors of capacity with 249 MW, or around 61 percent of the total capacity, followed by combined cycle gas turbine (CCGT) power plants with 157 MW or 38 percent.
Meanwhile, the contribution of new and renewable energy (NRE) is still very limited at only around 3 MW, or less than 1 percent. That consists of solar power plants (SPP) at 3 MW and micro-hydro power plants at 0.1 MW.
With the inclusion of the GTPP project in the PT PLN's RUPTL, the Indonesian government aims to significantly boost the use of NRE and reduce fossil fuel dominance in Maluku.