GACL-NALCO Dahej Caustic captive power station

From Global Energy Monitor

GACL-NALCO Dahej Caustic captive power station is a 130-megawatt (MW) coal-fired power station in the state of Gujarat, India.


The map below shows the location of the power station in Dahej, India.

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In December 2015, National Aluminium Company Limited (NALCO) (a Government of India Enterprise - Navratna Company) and Gujarat Alkalies and Chemicals Ltd. (GACL) jointly formed GACL-NALCO Alkalies & Chemicals Pvt. Ltd. (GNAL) to set up a caustic soda plant and 130 MW coal plant in Dahej, Gujarat.[1]

The green field project was proposed to meet the power and steam requirements of the plant at "Plot No. D-II/9" in Dahej. The captive power plant was expected to use the latest Circulating Fluidised Bed Combustion (CFBC) technology with "design flexibility for using 100% indigenous coal to 100% imported coal including blending with lignite."[2]

A June 2020 document "bifurcated" permitting document referenced the following capacities: 195 MW "as per EC," 1 x 65 MW for "GACL," and 2 x 65 MW for "GNAL."[3]

In April 2022, GNAL reportedly completed the partial start-up of the caustic soda plant and cogeneration captive power plant.[4]

GACL's annual report released in August 2022 noted that GNAL successfully commissioned Unit 1 of the 2 x 65 MW plant in May 2022. The full power station was expected to be fully operational by the third quarter of Financial Year 2022-23.[1] The power station at the presumed location appeared complete.[5]


The project was proposed to be implemented over a period of 2.5 years at an estimated cost of around Rs. 2000 crores, which included a foreign component of approximately Rs. 300 crores. The project was to be financed with a debt equity ratio of 70:30. The promoters (GACL and NALCO) were expected to contribute equity of Rs.600 crores at 60:40 ratio from their internal accruals. Balance Rs.1400 crores would be sourced from various lenders. GNAL appointed M/s IDBI Capital Market Services Ltd. as financial advisor.[2]

Project Details

  • Owner: GACL-NALCO Alkalies and Chemicals Private Limited (GNAL) [100%]
  • Parent: Gujarat Alkalies and Chemicals Limited (GACL) [60%]; National Aluminium Company Limited (NALCO) [40%]
  • Location: Dahej, Gujarat, India
  • Coordinates: 21.710191, 72.690406 (exact)
  • Gross generating capacity (operating): 130 MW (2 x 65 MW)
  • Type:
  • In service: 2022
  • Coal type:
  • Coal source:
  • Source of financing:

Articles and Resources


  1. 1.0 1.1 "49th Annual Report 2021-2022," GACL, August 2022
  2. 2.0 2.1 "About the Project," GNAL, accessed January 2023
  3. "Amendment to Environmental Clearance Order," Gujarat SEIAA, June 9, 2020
  4. "GACL-NALCO JV commissions new chlor-alkali plant at Dahej," India Fine Chemicals, April 18, 2022
  5. "THERMAX LIMITED (GNAL)," Google Maps, accessed January 2023