Ennore SEZ Super Critical Thermal Power Project (Vayalur)

From Global Energy Monitor

Ennore SEZ Super Critical Thermal Power Project (Vayalur) is a 1,320 megawatt (MW) coal-fired power station in Tamil Nadu, India, which has been proposed by the Tamil Nadu Generation and Distribution Corporation (TANGEDCO).


The undated satellite below shows the power station in Vayalur village of Thiruvallur district, near the North Chennai power station also owned and operated by TANGEDCO.

Loading map...


TANGEDCO has proposed to build two supercritical 800MW units on a reclaimed ash disposal area of the North Chennai Thermal Power Station. The plant is proposed to be built on 500 acres of land owned by the Tamil Nadu Electricity Board near the village of Vayalur, Tiruvallur district, Tamil Nadu, India.[1][2]

The project received environmental clearance for a 2 x 800 MW coal plant in 2014.[3] The capacity of each unit was, however, reduced to 660MW while calling engineering, construction, and procurement (EPC) tenders for the project in the same year.[4]

According to the India government (March 2016), the project is under construction with a planned commissioning of 2018-2019. The EPC contract was awarded to Bharat Heavy Electricals (BHEL).[5]

In December 2016 the India government reported that work at the site was held up from October 2015 onwards due to a court case filed against TANGEDCO by one of the EPC bidders. On October 18, 2016, the court ruled in favor of TANGEDCO and work on the site reportedly resumed on November 2, 2016.[6]

Planet satellite photos show construction did not substantially begin until June 2018, and then advanced through October 2018.

According to the India government (October 2020), the power station is planned for commissioning in 2022.[7]


It was reported in 2019 that the Power Finance Corporation is funding the project, at an estimated total investment of Rs98bn (£1.07bn).[8]

Coal supply

TANGEDCO has stated that coal for the project would be 30% imported coal and 70% domestic through Ennore Port.[1] TANGEDCO states that the project would require 5.46 million tonnes per annum of coal. TANGEDCO proposes that 3.82 million tonnes per annum be sourced from the Kalinga Block, Talcher, Mahanadhi and IB Valley and 1.64 million tonnes per annum from unspecified overseas sources.[9]

The 2014 environmental clearance states coal for the power station will be imported.[10]

Project Details

Sponsor: Tamil Nadu Generation and Distribution Corporation (TANGEDCO)
Location: Vayalur village, Ponneri taluk, Thiruvallur district, Tamil Nadu
Coordinates: 13.291667, 80.309722 (exact)
Status: Construction
Capacity: 1,320 MW (Units 1&2: 660 MW)
Type: Supercritical
Projected in service: 2022
Coal Type:
Coal Source: Indonesia
Source of financing: Power Finance Corporation (£1.07 billion)[8]
Permits and applications:

Articles and resources


  1. 1.0 1.1 Tamil Nadu Pollution Control Board, "Proceedings of the Public meeting held on February 23, 2011,", Tamil Nadu Pollution Control Board website, June 2011.
  2. "Ennore SEZ STPP (2x660 MW)," TANGEDCO website, accessed Sep 2015
  3. Environmental clearance, India MoEF, Jan 7, 2014.
  4. "Ennore SEZ Supercritical Thermal Power Project - NS Energy". NS Energy. Retrieved 2021-01-05.
  5. "Monthly Report on Broad Status of Thermal Power Projects in the Country," Government of India Ministry of Power, March 2016
  7. Broad Status of Thermal Power Plants, India Central Electricity Authority, October 2020
  8. 8.0 8.1 Jun 20, B. Sivakumar / TNN /; 2019; Ist, 10:08. "Chennai: Tangedco to add 2,100MW thermal capacity in 2 years | Chennai News - Times of India". The Times of India. Retrieved 2020-09-30.
  9. Tamil Nadu Electricity Board, "Executive Summary of EIA for proposed Ennore SEZ Thermal Power Project (2X800) MW at Vayalur Village, Ambathur Taluk, Thiruvallur District, Tamil Nadu", Tamil Nadu Electricity Board, December 2010, page E-III.
  10. Environmental clearance, India MoEF, Jan 7, 2014.

Related GEM.wiki articles

Loading map...

External resources

External articles