Asia | June 30, 2025

PGCIL to commission five ISTS-TBCB schemes

Power Grid Corporation of India Ltd (PGCIL) is expected to soon commission five interstate transmission system (ISTS) schemes.

 

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India: Power Grid Corporation of India Ltd (PGCIL) is expected to soon commission five interstate transmission system (ISTS) schemes that it was awarded under the tariff-based competitive bidding (TBCB) route. The schemes are likely to be commissioned by the end of June 2025 or shortly thereafter.

While four of these schemes were originally scheduled to commission last fiscal year, FY25, one scheme is racing towards completion ahead of its scheduled commissioning date.

Four schemes in question are housed under the following TBCB subsidiaries: Powergrid ERWR Power Transmission Ltd, Powergrid Khavda RE Transmission System Ltd, Powergrid KPS2 Transmission System Ltd, and Powergrid KPS3 Transmission Ltd.

Three schemes are related to evacuation of renewable energy in Khavda region of Gujarat. Together they envisage around 300 ckm of transmission lines and a significant 10,500 MVA of transformation capacity coming from two pooling stations – KPS2 (6,000 MVA) and KPS3 (4,500 MVA).

The fourth is an interregional scheme involving the Eastern Region and Western Region grids. The project involves putting up a 400 kV double-circuit line from PGCIL’s Jeypore substation in Odisha to the Jagdalpur substation of the state transmission utility of Chhattisgarh.

The scheme estimated to commission ahead of schedule is incorporated under Powergrid ER NER Transmission Ltd and connects the eastern and northeastern grids. This project includes capacity updates at Banka substation in Bihar and upgrade to 220 kV level, from 132 kV of the Namsai substation in Arunachal Pradesh. Both these elements have been completed. The final element, a 220 kV double-circuit line to Kathalguri substation in Assam, is nearing completion, with full commissioning expected soon.

The five schemes will add around 580 ckm of transmission lines and 11,820 MVA of capacity to the interstate grid, with a total cost over $350 M (Rs.3,000 crore) and annual tariffs of $33.4 M (Rs.286 crore).

Source: T&D India