330 MW Sarulla geothermal plant in Indonesia completed with third unit online,

330 MW Sarulla geothermal plant in Indonesia completed with third unit online, Unit 1 of Sarulla Geothermal Power Plant, North Sumatra/ Indonesia (source: Ormat Technologies)
Alexander Richter 8 May 2018

Now officially announced, the third unit of the Sarulla geothermal power plant in Indonesia has started operation and now completes the project bringing it to its full capacity of 330 MW.

While previous news indicated it already, it is now official. In a release today PT Medco Energi Internasional Tbk  announced the commercial operation of the third and final unit in the phase one development of the Sarulla Geothermal Power Project, NIL2. Commercial operation of the Project’s first and second units began on 18 March 2017 and 2 October 2017 respectively.

The Project is the world’s largest single-contract geothermal power plant and is located in Pahae Jae and Pahae Julu Districts, North Tapanuli Regency, North Sumatra Province, Indonesia. The U$1.7 billion project generates approximately 330MW, enough to power 2.1 million Indonesian households.

Hilmi Panigoro, President Director of MedcoEnergi, said “I am very pleased with the completion of this 330MW Sarulla Geothermal Power Project, it demonstrates the Company’s continued support to Indonesia’s economic development and our commitment to deliver value to our stakeholders.”

Ormat provided the initial conceptual design of the Geothermal Combined Cycle Unit (GCCU) power plant and supplied its Ormat Energy Converter (OEC). The OECs are producing over 40% of the total power by utilizing low pressure steam and the separated brine, and as such maximizing resource exploitation for maximum power output.

SIL, the first unit of the power plant, commenced commercial operation in March 2017 and NIL 1, the second unit, commenced commercial operation in October 2017. Both units are performing well. NIL 2, the third unit, commenced commercial operation on May 4, 2018, reaching full completion under the Energy Sales Contract on schedule.

“Ormat believes Asia is a region with significant untapped geothermal potential, and we expect to use the success at the Sarulla plant as a stepping stone to additional opportunities,” commented Isaac Angel, CEO of Ormat Technologies. “Our relationship with ORIX Corporation, coupled with our participation in one of the world’s largest geothermal power plants, serve as important differentiators in Asia and globally for Ormat.”

The Sarulla 330 MW power plant, sells its power to the state-owned Indonesian Power Company PT Perusahaan Listrik Negara (PLN) under a 30 year Energy Sales Contract. The Sarulla power plant is operated by Sarulla Operations Ltd. (SOL), an operation company established by a consortium consisting of Medco Energi Internasional Tbk, Inpex Corporation, Itochu Corporation, Kyushu Electric Power Co. Inc., and an Ormat subsidiary that holds a 12.75% equity interest.

In earlier news by the Ministry of Energy and Mineral Resources, it though sounds through that so far PLN has only been taking on about 86 MW of the installed 110 MW capacity. We will follow up on that.

Source: Medco Power, Ormat