Sorik Marapi Unit 5 geothermal power plant, Indonesia starts operations
The Sorik Marapi Geothermal Field in North Sumatra, Indonesia operated by KS Orka once again augments its installed capacity with a 33-MW Unit 5 power plant.
The Unit Rated Capacity (URC) test of the 33-MW Sorik Marapi Geothermal Power Plant Unit 5 has been successfully completed. With this, the total capacity of the Sorik Marapi Geothermal Field in Mandailing Natal Regency in South Sumatra, Indonesia has increased to 200 MWe.
PT Sorik Marapi Geothermal Power (PT SMGP), a subsidiary of KS Orka Renewables Pte. Ltd., completed the URC for Unit-5 of Sorik Marapi Geothermal Power Plant from 12-15 December 2024 with a total test time of 72 hours. In synergy with PT PLN (Persero), the Unit-5 URC Test was supervised by personnel from PLN PUSERTIF (Certification Center) represented by Rian Guntoro and PLN UIP SUMBAGUT represented by Aryo Saloko.
“The success of URC Unit 5 reflects the dedication of the PT SMGP team and synergic collaboration with stakeholders and
partners, supported by Kaishan technology in improving operational efficiency and sustainable geothermal energy management,” said Dr. Yan Tang, President Director of PT SMGP.
“We are optimistic that this achievement will accelerate Indonesia’s transition to new and renewable energy, and strengthen the contribution of PT SMGP and KS Orka Renewables Pte. Ltd. more broadly in supporting 2030 Emission Reduction and Indonesia’s 2060 Net Zero Emission targets.”

PT SMGP has steadily increased the installed capacity of the Sorik Marapi Geothermal Field with successive operations of the past units – Unit 4 in 2023, Unit 3 in 2022, Unit 2 in 2021, and the first unit in 2019. The company had been lauded in the past for the rapid development of the project and the recent years have proven these accolades well-deserved.
Source: Email correspondence