New Delhi, January 31, 2026 :
Tata Power Company Limited has commissioned two high-capacity 765 kV extra-high-voltage (EHV) transmission lines in Uttar Pradesh, strengthening the Northern Grid and enabling large-scale evacuation of power within the state.
The newly operational corridors — Mainpuri–Bara (380 circuit kilometres) and Mainpuri–Unnao (194 circuit kilometres) — together span 574 circuit kilometres and have been developed under the South East UP Power Transmission Company Limited (SEUPPTCL) project.
According to the company, the transmission infrastructure will facilitate the evacuation of over 3,000 MW of thermal power generated in Uttar Pradesh, improving grid stability and addressing rising electricity demand from industrial, commercial, and residential consumers.
The project is owned by Resurgent Power Ventures Pte. Limited, a joint venture led by Tata Power along with ICICI Bank and global investors. It was acquired as part of the resolution of previously stressed power transmission assets.
Strengthening the Northern Grid
The two 765 kV corridors form a critical backbone for power flow within Uttar Pradesh and enhance inter-state transmission capacity across the northern region. High-voltage transmission infrastructure is seen as a key enabler for reliable power supply and smoother integration of generation capacity.
Complex Engineering Execution
Project execution involved large-scale engineering and logistical challenges. Tata Power deployed more than 42,000 metric tonnes of tower steel and completed 6,900 kilometres of conductor stringing. The construction also included over 100 major crossings, such as railway lines, rivers, highways, and existing transmission corridors.
The lines pass through forest and environmentally sensitive areas and were constructed in compliance with statutory environmental and regulatory norms, the company said.
Expanding Transmission Portfolio
With the commissioning of the Mainpuri–Bara and Mainpuri–Unnao lines, Tata Power’s total operational transmission network now stands at 5,312 circuit kilometres, while an additional 1,997 circuit kilometres are under various stages of construction.
The expansion comes at a time when India’s power sector is focusing on strengthening transmission infrastructure to support economic growth, improve grid resilience, and ensure reliable electricity supply across regions.
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