Banten Suralaya power station

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Banten Suralaya power station is a 4,025-megawatt (MW) coal-fired power complex in Banten Province, Indonesia. Construction began in 2017 on an expansion that would add Unit 9 (1000 megawatts) and Unit 10 (1000 megawatts).[1]


The map below shows the plant, in Pulomerak District, Cilegon City, Banten Province. Units 1-7 are on the southwest side of the complex and Unit 8 is on the northeastern side, with a large open-air coal storage area located between. The site of the Banten Serang power station is just to the northeast of Unit 8.

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Background on Plant

Banten Suralaya power station is a 4,025-megawatt (MW) coal-fired power complex consisting of 8 generating units located on the northwest tip of the Indonesian island of Java, close to the city of Cilegon and about 150 km west of the capital city of Jakarta, Indonesia. The complex is owned by PT PLN. In 2017 construction began on Unit 9 (1000MW) and Unit 10 (1000MW) at the same location, under a partnership in which PT PLN Persero has 51% ownership and PT Barito Pacific Tbk has 49%.[1][2]

The power complex was built in four phases:[3][4]

Phase I

  • Unit 1 - 400 MW - 1984
  • Unit 2 - 400 MW - 1985

Phase II

  • Unit 3 - 400 MW - 1988
  • Unit 4 - 400 MW - 1989

Phase III

  • Unit 5 - 600 MW - 1996
  • Unit 6 - 600 MW - 1997
  • Unit 7 - 600 MW - 1997

Phase IV

  • Unit 8 - 625 MW - 2011

PLN also has a major training facility in Merak, several kilometers to the southwest of the Suralaya plant, which uses Suralaya to train PLN workers.[5]

An explosion and fire at the 30-year-old transformer of Unit 4 in December 2013 caused widespread power failures in the area.[6][7]

Coal source

The power station receives coal through its attached Suralaya coal terminal, also owned by PLN. Coal comes from Bukit Asam Coal Mining operations in South Sumatra.[8]

Proposed Units 9 & 10: 1000 MW

In October 2016 PLN announced that it would build two additional Units at the plant and that construction would take three years.[9] In September 2017 PLN President Director of Indonesia Power Sri Peni Inten Cahyani announced that these Units would each produce 1000 MW and would be built with PLN's partner, PT Barito Pacific Tbk, with PLN having 51% ownership.[2] In December 2017 it was reported that construction had begun on Units 9 & 10.[1] In March 2018 the General Manager of the plant estimated that construction of Units 9 & 10 would be complete in 2022.[10]

Opposition to plant

As construction began on the Unit 9 & 10 expansion, residents complained about already high levels of air pollution from the plant and damage to the sea and local fishing industry.[1] One resident compared the sight of the nearby plant to a scene from Lord of the Rings.[1]

In November 2018 environmental activists called on the South Korean banks funding the expansion to withdraw their support. The expansion will cost an estimated $1.67 billion and be financed with loans from the Export-Import Bank of Korea (KEXIM), the Korea Development Bank (KDB Bank), and the Korea Trade Insurance Corporation (K-sure).[11]

Project Details for Units 9 &10 (1000MW) Expansion

  • Sponsor: PT PLN 51%; PT Barito Pacific Tbk 49%
  • Parent company: Government of Indonesia
  • Location: Pulomerak District, Cilegon City, Banten Province, Indonesia
  • Coordinates: -5.8892179, 106.0336018
  • Status: Construction
  • Gross Capacity: Unit 9 1000MW; Unit 10 1000MW
  • Type: Subcritical
  • Projected in service: 2022
  • Coal Type: Subbituminous
  • Coal Source:
  • Source of financing: Unit 8 - China Ex-Im Bank (US$280 million)[12]; Units 9-10: Ex-Im Bank of Korea; Korea Development Bank; Korea Trade Insurance Corporation[11]

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