Banwol CHP power station

From Global Energy Monitor

Gumi CHP power station (반월열병합) appears to be a 51-megawatt (MW) power station in Gyeonggi Province, South Korea.


The map below shows the location of the power station in Ansan, Gyeonggi Province, South Korea.[1]

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The Banwol Combined Heat and Power (CHP) power station was commissioned in 1990. It is one of the largest industrial complex cogeneration sites in Korea, supplying energy to dozens of industrial complex companies.[2][3]

In 2011, STX-owned cogeneration power plants – the Gumi CHP power station and Banwol CHP power station – had a combined capacity of 174 MW with a steam network spanning 140 kilometers and output of 1,975 tons per hour. Banwol's capacity is uncertain, but is likely between 51 MW and 89 MW (174 MW minus Gumi's potential 85 MW capacity).[4][5]

A company report included the following timeline for the power station:[4]

  • Nov. 1984: Construction plan for Banwol Power Plant approved
  • June 1985: Banwol Power Plant licensed for heat supply business
  • Aug. 1990: Banwol Power Plant completed
  • Jan. 1995: Additional small turbine/generator (6 MW X 1) installed
  • Mar. 2006: Additional auxiliary turbine/generator (14.25 MW X 1) installed
  • Apr. 2007: Denitrification facilities (No. 1, 2, and 3) installed
  • Nov. 2007: Installed denitrification and desulfurization facilities (No. 4 and 5)

In addition, it listed the following major steam producing facilities at the site:[4]

  • Main Boiler: 200 T/H x 2 units (Each burns bituminous coal and heavy coal)
  • Auxiliary Boiler: 240 T/H x 2 units (Burns bituminous coal and heavy oil)
  • Auxiliary Boiler: 240 T/H 1 unit (Burns heavy oil only)

According to public consultations in 2018, 50% bunker C oil and 50% city gas were being supplied to GS E&R at the site. The company was looking to switch to 50% liquefied petroleum gas (LPG) and 50% city gas to reduce emissions.[6] It is unclear if and when the power station burned coal.

As of June 2021, to respond to carbon neutrality calls, GS E&R had allegedly set up a "facility replacement plan" to convert the power station to a fuel like liquefied natural gas (LNG), but was struggling to implement the plan at its own expense.[7]


STX Energy was acquired by GS Group in late 2013 and renamed to GS E&R in 2014.[8]

Project Details

  • Sponsor: GS E&R
  • Parent company: GS Holdings Corp
  • Location: Ansan, Gyeonggi Province, South Korea
  • Coordinates: 37.29830, 126.79958 (exact)
  • Coal type: Bituminous
  • Coal source:
  • Gross generating capacity (operating): approximately 51 MW
    • Unit 1: Coal-fired (?) subcritical, 51 MW (start-up in 1990)

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