NEWS

WKP Gunung Sirung in Paradise Island

NQ News
Monday, January 11, 2021

WKP Gunung Sirung was established established in 2016, located in Pantar Island, Alor Regency, East Nusa Tenggara Province with resources potency of 152 MW. 1st Geothermal Power Plant with capacity 5 MW is targeted to operate in 2025. Of the total area of WKP (14,500 Ha), there are around 6,500 Ha of forest area, mostly protection forest.

Early survey and assessment of WKP Gunung Sirung is conducted by Geological Agency before 2015 and continued by PLN in 2017 through NewQuest Geotechnology in Preparation of Exploration Program and Development Plan Proposal project covering the following scopes:

  1. Conducting Remote Sensing data interpretation for determining geological "play" concept
  2. Review existing geological & geochemical data
  3. Reprocessing of existing geophysical data
  4. Integrated interpretation & conceptual model
  5. Potential resource calculation
  6. Planning of Exploration Program, Well Targeting, Basic Power Plant Preliminary Design, and Economic Analysis
  7. Report and presentation to Ministry of Energy and Mineral Resources.

In 2017, the Geological Agency drilled 2 gradient wells with a depth of 700 m, The WKP Gunung Sirung, Pantar Island is characterized by hot springs with temperatures of 37 to 99 0C, hot soils, and altered rock. Estimated reservoir temperature of 260oC which is included in the high temperature geothermal system.

In 2018, the government, in this case Ministry of Energy and Mineral Resources (KESDM), assigned PLN to manage this WKP. The challenge of developing Sirung Geothermal Power Plant (PLTP) is a small demand in Pantar island which makes investment cost per MW higher. Hope the Feed in Tariff (FiT) Formula can overcome the challenges of developing the PLTP Gunung Sirung.

Pantar is a group of islands located between Lembata Island and Alor Island (the central location of Alor Regency), the Pantar Islands has small islands including Batang Island, Lapang Island, Rusa Island, Kangge Island, Kura Island, Tereweng Island, Ternate Island and Buaya Island. Pantar Island area is 728 km² and there are several mountains: Mount Sirung (862 m), Mount Khulinggang, Mount Komawas and Mount Tuntuli.

Pantar Island is also blessed with various renewable energy sources, namely Geothermal Energy, Ocean Current, Wind and Solar. Currently, Pantar Island electricity with a load of less than 5 MW is generated by PLTD (Diesel) and PLTS (Solar PV).


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