The plant was established under the mega power project policy.
The erstwhile Tamil Nadu Electricity Board (TNEB) and the NTPC, in a joint venture, formed the NTPC Tamil Nadu Energy Company Limited.
The foundation stone for the Vallur thermal plant was laid on 5 September 2007, with an estimated cost of ₹80 billion (€100 million), and the ₹19,900-million main plant package to supply steam generators and turbine for stage I was awarded to Bharat Heavy Electricals Limited (BHEL), a state-run power equipments manufacturer, on 13 August 2007.
The projected was constructed in two phases: phase I with two 500 MW units at a cost of ₹54 billion and phase II with one 500 MW unit at a cost of ₹30 billion.
Initially expected to be operational by 2010, the project was delayed due to the late implementation of the coal-handling facility established by the BHEL.
Erection of the boiler column began on 5 January 2009.

In September 2009, the ₹130 million contract to supply units for Vallur was given to BHEL, which supplied and installed steam generator and steam turbine packages.
BHEL was responsible for the design, engineering manufacture, supply, erection and commissioning of the steam generators, turbine generators, electrostatic precipitators and associated auxiliaries, and controls and instrumentation systems in the plant.

The 216-tonne (213-long-ton; 238-short-ton) boiler drum of Unit I was erected in June 2010.
Unit I was commissioned in March 2012 but operating at full capacity was delayed further due to problems with coal-handling facilities.
Independent works on phase II began in 2010.

The first, second and third units were synchronised with the grid on 9 March 2012, 26 February 2013 and 28 February 2014, respectively.
The total cost of the project without IDC was ₹91,930 million.
The plant commenced its commercial operation on 29 November 2012, with the operation of its first unit.
The second unit commenced its commercial operations on 25 August 2013, while that of the third unit was commenced on 28 February 2014.
The plant was established under the mega power project policy. The erstwhile Tamil Nadu Electricity Board (TNEB) and the NTPC, in a joint venture, formed the NTPC Tamil Nadu Energy Company Limited. The foundation stone for the Vallur thermal plant was laid on 5 September 2007, with an estimated cost of ₹80 billion (€100 million), and the ₹19,900-million main plant package to supply steam generators and turbine for stage I was awarded to Bharat Heavy Electricals Limited (BHEL), a state-run power equipments manufacturer, on 13 August 2007. The projected was constructed in two phases: phase I with two 500 MW units at a cost of ₹54 billion and phase II with one 500 MW unit at a cost of ₹30 billion. Initially expected to be operational by 2010, the project was delayed due to the late implementation of the coal-handling facility established by the BHEL. Erection of the boiler column began on 5 January 2009.
In September 2009, the ₹130 million contract to supply units for Vallur was given to BHEL, which supplied and installed steam generator and steam turbine packages. BHEL was responsible for the design, engineering manufacture, supply, erection and commissioning of the steam generators, turbine generators, electrostatic precipitators and associated auxiliaries, and controls and instrumentation systems in the plant.
The 216-tonne (213-long-ton; 238-short-ton) boiler drum of Unit I was erected in June 2010. Unit I was commissioned in March 2012 but operating at full capacity was delayed further due to problems with coal-handling facilities. Independent works on phase II began in 2010.
The first, second and third units were synchronised with the grid on 9 March 2012, 26 February 2013 and 28 February 2014, respectively. The total cost of the project without IDC was ₹91,930 million. The plant commenced its commercial operation on 29 November 2012, with the operation of its first unit. The second unit commenced its commercial operations on 25 August 2013, while that of the third unit was commenced on 28 February 2014.
Vallur Thermal Power Station