The 600 MW Neyveli Thermal Power Station-I in which the first unit was synchronized in May'62 and the last unit in September'70 consists of six units of 50 MW each and three units of 100 MW each.
The Power generated from Thermal Power Station-I after meeting NLC's requirements is fed into Tamil Nadu Electricity Board which is the sole beneficiary. Due to the aging of the equipments / high pressure parts, Life extension programme has been approved by GOI in March 1992 and was successfully completed in March’99 thus extending the life by 15 years. In view of the high grid demand in this region, this power station is being operated after conducting Residual Life Assessment (RLA) study. GOI has sanctioned a 2x500 MW Power Project (Neyveli New Thermal Power Plant – NNTPS) in June 2011 as replacement for existing TPS-I. The Board of Directors of NLC accorded approval to keep the plant in service till the commissioning of the Neyveli New Thermal Power Plant (NNTPS).
THERMAL POWER STATION-II:
The 1470 MW Second Thermal Power Station consists of 7 units of 210 MW each. In February 1978, Government of India sanctioned the Second Thermal Power Station of 630 MW capacity (3 X 210 MW) and in Feb.'83, Government of India sanctioned the Second Thermal Power Station Expansion from 630 MW to 1470 MW with addition of 4 units of 210 MW each. The first 210 MW unit was synchronised in March 1986 and the last unit (Unit-VII) was synchronized in June'93. The power generated from Second Thermal Power Station after meeting the needs of Second Mine is shared by the Southern States viz., Tamil Nadu, Kerala, Karnataka, Andhra Pradesh and Union Territory of Pondicherry.
THERMAL POWER STATION-I Expansion:
Thermal Power Station-I has been expanded using the lignite available from Mine-I Expansion. The scheme was sanctioned by Government of India in February 1996. The Unit-I was synchronised in October 2002 and Unit-II in July 2003. The power generated from this Thermal Power Station after meeting the internal requirements is shared by the Southern States viz., Tamil Nadu, Kerala, Karnataka, and Union Territory of Pondicherry.
BARSINGSAR THERMAL POWER STATION:
Government of India sanctioned the Barsingsar Thermal Power Station 250 MW (2 X 125 MW) in October 2004. Both the units were commissioned in December 2011 and January 2012. The power generated from this thermal power station after meeting internal requirements is shared by the DISCOMS of the state of Rajasthan.