Tata Power has announced the commissioning of two 400 kV double-circuit transmission lines Tanda–Gonda and Gonda–Basti spanning a total of 154 circuit kilometres (ckm) in Uttar Pradesh. With this development, the company has successfully completed all Extra High Voltage (EHV) transmission lines and substations under the South East UP Power Transmission Company Limited (SEUPPTCL) project.
Comprehensive Network Strengthening
There are now three 765 kV lines that make up the SEUPPTCL transmission network. These lines cover a total of 951 kilometres. There are also fourteen 400 kV lines that cover 566 kilometres and three 765/400 kV substations that can transform a total of 3,460 MVA. This strong infrastructure greatly improves the state’s ability to send power.
The commissioning of four critical transmission assets—including the 765 kV Mainpuri–Bara and Mainpuri–Unnao single circuit lines, along with the Tanda–Gonda and Gonda–Basti double-circuit lines—will enable the safe and reliable evacuation of more than 4,000 MW of thermal power generated within the state.
Engineering Scale and Execution
The project shows a lot of engineering work, like using more than 45,000 metric tonnes of tower steel and stringing more than 8,600 kilometres of conductors. Construction activities also included 139 critical crossings over railways, highways, pipelines, and rivers, along with work in forest areas carried out in compliance with environmental and statutory norms.
Expansion of Transmission Footprint
Tata Power’s total operational transmission network has grown to 5,466 circuit kilometres. This is thanks to the completion of 17 EHV transmission corridors that cover 1,517 circuit kilometres. Additionally, 1,863 circuit kilometres are currently being built, which shows that the company’s gearbox portfolio is still growing.
Strategic Importance of SEUPPTCL
The SEUPPTCL project is part of Resurgent Power Ventures, a joint venture led by Tata Power in partnership with ICICI Bank and global investors. The project was acquired as part of the resolution of stressed assets in the power sector, highlighting its strategic importance in strengthening India’s power infrastructure.
Supporting Reliable Power Supply and Energy Transition
The completion of this transmission network makes the grid more stable and makes sure that power is always available in Uttar Pradesh. It also helps the larger power value chain, which includes Tata Power’s work in generation, transmission, distribution, trading, and renewable energy solutions.
With a clean energy capacity of 7.5 GW, accounting for 46% of its total portfolio, Tata Power continues to play a key role in advancing India’s energy transition while strengthening critical infrastructure for long-term growth and sustainability.
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