Thennampatty – SEPC IPP Line is a 400kV overhead line with a length of 104km from Thennampatty, Tamil Nadu, India, to SEPC Tuticorin Power Station, Tamil Nadu, India.

Construction works on the Thennampatty – SEPC IPP Line started in 2019 and the project was commissioned in 2020.


The Thennampatty – SEPC IPP Line, which is an overhead line, is being operated by Tamil Nadu Transmission. The Thennampatty – SEPC IPP Line is a new line. The line carries alternating current (AC) through double circuit cable.

Thennampatty – SEPC IPP Line project development status

The development of the Thennampatty – SEPC IPP Line project was approved by Tamil Nadu Electricity Regulatory Commission in 2019 and the project works were completed in 2020.

About Tamil Nadu Transmission

Tamil Nadu Transmission Corporation Ltd (TANTRANSCO) is a state owned provider of electric power transmission infrastructure. The company’s transmission infrastructure network includes three category sub stations with 765 KV, 400 KV and 230 KV capacities. It has state load despatch centre for grid operations in Erode, Tamil Nadu, India. TANTRANSCO is headquartered in Chennai, Tamil Nadu, India.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.