Tamil Nadu Power Generation Corporation Limited (TNPGCL) is a state-owned electric power generation company headquartered in Chennai, Tamil Nadu, India. The corporation is responsible for operating thermal and gas-based power plants in the state and generating electricity for the Tamil Nadu power grid. It functions as a subsidiary of TNEB Limited and operates under the administrative control of the Government of Tamil Nadu.
The company was formed in 2024 following the restructuring of the Tamil Nadu Generation and Distribution Corporation (TANGEDCO), under which the power generation, power distribution and renewable energy operations were separated into independent companies.
History Electricity generation and distribution in Tamil Nadu were historically managed by the Tamil Nadu Electricity Board (TNEB). In 2010, the board was reorganised into a holding company called TNEB Limited, with separate subsidiaries for transmission and generation-distribution activities.
In 2024, the Government of Tamil Nadu further restructured TANGEDCO to improve operational efficiency and financial management. The restructuring created three new companies:
Tamil Nadu Power Generation Corporation Limited (TNPGCL) – thermal and gas-based electricity generation Tamil Nadu Power Distribution Corporation Limited (TNPDCL) – electricity distribution Tamil Nadu Green Energy Corporation Limited (TNGECL) – renewable energy projects
Following this reorganisation, thermal power stations and gas turbine plants previously managed by TANGEDCO were transferred to TNPGCL.
Operations TNPGCL operates coal-based thermal power stations and gas turbine power plants across Tamil Nadu. These facilities form an important component of the state's electricity supply and help meet peak power demand.
Installed capacity Source Installed capacity Coal-based thermal power ~8,640 MW Gas turbine power ~515 MW Total installed capacity ~9,155 MW
Operational power stations Power station Location District Fuel type Units Capacity (MW) Commissioned Ownership North Chennai Thermal Power StationAthipattu Pudunagar Chennai Coal 3 × 210 MW, 2 × 600 MW, 1 x 800 MW 2,630 MW 1995–2019 Tamil Nadu Power Generation Corporation Limited Vallur Thermal Power StationVallur Thiruvallur Coal 3 × 500 MW 1,500 MW 2012–2015 Joint venture (NTPC-TNEB Energy Co. Ltd) Mettur Thermal Power StationMettur Salem Coal 4 × 210 MW, 1 x 600 MW 1140 MW 1987–2012 Tamil Nadu Power Generation Corporation Limited Tuticorin Thermal Power Station Thoothukudi Thoothukudi Coal 5 × 210 MW 1,050 MW 1979–1993 Tamil Nadu Power Generation Corporation Limited NTPL Thermal Power StationThoothukudi Thoothukudi Coal 2×500 MW 1,000 MW 2015 Joint venture (NLC Tamil Nadu Power Ltd) Udangudi Super Critical Thermal Power StationUdangudi Thoothukudi Coal 2×660 MW 1,320 MW 2026 Tamil Nadu Power Generation Corporation Limited Basin Bridge Gas Turbine Power StationBasin bridge Chennai Natural gas 4 × 30 MW 120 MW 1996 Tamil Nadu Power Generation Corporation Limited Valuthur Gas Turbine Power Station Valuthur Ramanathapuram Natural gas Combined cycle 187 MW 2003 Tamil Nadu Power Generation Corporation Limited Thirumakottai Gas Turbine Power Station Thirumakkottai Thiruvarur Natural gas Combined cycle 107.88 MW 2001 Tamil Nadu Power Generation Corporation Limited Kuthalam Gas Turbine Power Station Kuthalam Mayiladuthurai Natural gas Combined cycle 101 MW 2003 - 2004 Tamil Nadu Power Generation Corporation Limited
Power stations under construction Power station Location District Fuel type Units Capacity (MW) Status Ennore Thermal Power Station (Replacement Project)Ennore Chennai Coal 1 × 660 MW 660 Under construction Ennore SEZ Supercritical Thermal Power ProjectEnnore Chennai Coal 2 × 660 MW 1,320 Under constructionUppur Thermal Power ProjectUppur Ramanathapuram Coal 2 × 800 MW 1,600 Construction stalled Decommissioned power stations Power station Location District Fuel type Units Capacity (MW) Year retired Ennore Thermal Power Station (Old units)Ennore Chennai Coal 2 × 60 MW, 3 x 110 MW 450 MW 2017
See also
Tamil Nadu Electricity Board Tamil Nadu Generation and Distribution Corporation Tamil Nadu Power Distribution Corporation Limited Tamil Nadu Green Energy Corporation Limited Energy in Tamil Nadu
References
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