WKP Atadei, A Partnership Opportunity with PLN

NQ News, Monday September 28, 2020

In Indonesia, there are hundreds of electricity systems, from a large system 35 GW Java Bali system to a small system with size only a few MW. East Nusa Tenggara (NTT) Province has more than 60 power systems, one of which is the Lembata system with a current capacity of 5 MW and peak load of 4.1 MW.

East Nusa Tenggara ( NTT ) is an archipelago province with 1,192 islands, 44 inhabited islands, 29 islands with electricity and 15 islands still not electrified. There are several islands in Indonesia that can be 100% electrified by geothermal power plants such as Flores Island (Geothermal Island of Indonesia) Bacan Island in Maluku , Buru Island, Lembata Island, etc.

One of the positive credits from geothermal in NTT is the Shallow Reservoir, the average drilling rate is around 1500 m, while the challenge for its development is the small load and demand.

NTT itself has geothermal potential of more than 1.2 GW, 776 MW of them located in Flores island and is spread across 27 locations with geothermal plant installed capacity of 12.5 MW from 2 production fields. This year, Sokoria, the 3rd production field will operate with capacity of 5 MW, while PLTP Atadei 2 x 5 MW is targeted to COD in 2025-2027.

Atadei is one of the 8 PLN WKP Assignments, 8 of these WKPs will be managed by PLN in partnership with the WKP status still being managed by PLN and the status of a generator managed by a private developer (independent power producer / IPP). There are already five partners who have passed the prequalification, namely; PT Apexindo Pratama Duta, Ormat Technologies, Medco Energi, Halliburton, and Itochu Corporation.

In the near future, PLN will determine partners to develop these 8 WKPs.

Geothermal Survey & Study of Atadei

The Atadei WKP with a potential of 40 MW is located in Watuwawer Village, Atadei District, Lembata Regency, Lembata Island, NTT Province, established in 2008 and is managed by PT Westindo Karya Utama. Without any significant progress for nearly 10 years, in 2017 the government assigned one of its State Own Enterprises PT. PLN to develop WKP Atadei.

After receiving the assignment, PLN immediately carry out survey activities. Through the auction process, NewQuest Geotechnology won the Pre FS jobs for 3 WKPs PLN namely Atadei, Songa Wayua and Tangkuban Perahu.

The work for WKP Atadei was carried out by NewQuest 2018-2019 covering; Remote Sensing Analysis, Reprocessing and 3-D Modeling of Existing MT-Gravity Data, Geological Mapping and Rock Analysis, Geochemical Studies and Water/ Gas/ Isotope Analysis, Geophysical Survey: Gravity, Magnet, MT, and TDEM, Conceptual Modeling and Resources Assessment, Well Targeting, Well Pad Selection, and Drilling Design, Infrastructure Design: Access Road, Well Pad, Water Distribution System, Power Plant Design: Process Flow Diagram, Technology Selection, FCRS Design, Transmission Line, Economic and Financial Evaluation.

NQG has completed all scope of work for Atadei and has submitted the Final Report to PLN.

Which partner will PLN choose to develop WKP Atadei? Lets wait and see.


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