Telaga Ranu geothermal working site in Indonesia awarded to PT Ormat Geothermal
Halmahera Island, North Maluku, Indonesia (source: Eustaquio Santimano, CC BY 2.0 
Carlo Cariaga
13 Jan 2026
The Telaga Ranu WKP in North Maluku, Indonesia, with an indicative capacity of 40 MWe, has been awarded to PT Ormat Geothermal Indonesia.
The Telaga Ranu Geothermal Working Area (WKP) located in West Halmahera Regency, North Maluku, Indonesia has been awarded to PT Ormat Geothermal Indonesia following a competitive tender process.
The tender for the Telaga Ranu WKP was announced in September 2025. It was one of the ten WKP sites that the Ministry of Energy and Mineral Resources (MEMR) announced would be offered for tender just a few months prior, as ThinkGeoEnergy reported. According to the MEMR, the Telaga Ranu WKP has an estimated reservoir temperature of 250 to 300 °C. The site has possible reserves of 70 MWe and a capacity development plan of 40 MWe.
According to MEMR documents, PT Pertamina Geothermal Energy, PT Barito Renewables Energy, and PT DSSR Daya Mas Sakti also participated in the tender.
The MEMR currently has open tenders for the Songgoriti WKP and the Tampomas WPSPE. Candidates are meanwhile being evaluated for the Kadidia, Cisurupan Kertasari, and Cubadak Panti WPSPEs.
A recent interview with The Director General of New, Renewable Energy and Energy Conservation (EBTKE) at the Ministry of Energy and Mineral Resources, Eniya Listiani Dewi, indicated that the Ungaran WKP will soon be offered for tender. The Ungaran WKP was previously managed by PT PLN but has been returned to the government.
Source: EBTKE and CNBC Indonesia
