POWERGRID wins Karnataka project with Rs 243.34 crore tariff
Key highlights
- POWERGRID won the Humnabad, Karnataka transmission project with quoted annual transmission charges of Rs 243.34 crore.
- The project includes a 3X500 megavolt-ampere 400/220 kilovolt substation and associated 400 kilovolt and 220 kilovolt lines.
- POWERGRID received the LoI dated 10 November 2026 on 11 November 2026.
- The award was POWERGRID's 11th TBCB project win in FY 2026-27, with cumulative annual transmission charges of Rs 8,106.97 crore.
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Power Grid Corporation of India Limited (POWERGRID) was declared the successful bidder for a Karnataka intra-state transmission project carrying quoted annual transmission charges of Rs 243.34 crore, according to its 11 November 2026 disclosure. The win was POWERGRID's eleventh Tariff Based Competitive Bidding (TBCB) project in FY 2026-27.
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What Karnataka transmission project did POWERGRID win?
POWERGRID won the project titled “Establishment of 3X500MVA 400/220kV sub-station at Humnabad in Bidar District and associated transmission lines.” The company said on 11 November 2026 that it had been declared the successful bidder under TBCB for the intra-state transmission-system project in Karnataka.
POWERGRID received the Letter of Intent, or LoI, on 11 November 2026, while the LoI itself was dated 10 November 2026. The filing identifies the company as the successful bidder but does not state a construction start date, commissioning date or other implementation milestone for the Humnabad project.
The disclosed scope is within Karnataka. It comprises a new 400/220 kilovolt substation at Humnabad in Bidar district, along with 400 kilovolt and 220 kilovolt transmission lines and associated bays traversing the state.
What infrastructure will the Humnabad project include?
The Humnabad project includes a 3X500 megavolt-ampere 400/220 kilovolt substation, meaning the announced substation configuration has three 500 megavolt-ampere units. POWERGRID also disclosed associated transmission lines at both 400 kilovolt and 220 kilovolt voltage levels.
The project combines a new substation, transmission lines and associated bays in one TBCB package. POWERGRID did not disclose the route length of the 400 kilovolt or 220 kilovolt lines, the number of bays, the locations of connected substations or the project construction cost in its 11 November 2026 announcement.
The project name specifically identifies Humnabad in Bidar district, while the filing says the lines will traverse Karnataka. The disclosure does not provide a district-by-district route alignment beyond the Humnabad location and the state-level description.
How will POWERGRID deliver the project and what is its annual charge?
POWERGRID will establish the project on a Build, Own, Operate and Transfer, or BOOT, basis, at quoted annual transmission charges of Rs 243.34 crore. The Rs 243.34 crore amount is the annual charge quoted in the TBCB process, not a capital-cost figure disclosed by POWERGRID.
The announced BOOT structure provides that POWERGRID will build, own, operate and transfer the project. The filing does not disclose the operating-period duration, transfer date, financing arrangement, capital expenditure or conditions attached to the LoI dated 10 November 2026.
Both figures in the table are annual transmission charges rather than capital spending measures. The Humnabad project amount of Rs 243.34 crore is an individual project charge, while Rs 8,106.97 crore is the cumulative charge for 11 TBCB projects secured in FY 2026-27 to 11 November 2026.
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How does this award change POWERGRID's FY 2026-27 TBCB pipeline?
This project took POWERGRID's TBCB project tally to 11 in FY 2026-27, with cumulative annual transmission charges of Rs 8,106.97 crore. POWERGRID stated that the Humnabad award was included in this count and cumulative amount as of 11 November 2026.
The latest project carries quoted annual transmission charges of Rs 243.34 crore, compared with Rs 8,106.97 crore across all 11 TBCB wins in FY 2026-27. The disclosure does not identify the other 10 projects, their locations, asset configurations or individual quoted annual transmission charges.
The 11-project figure refers to transmission-system projects secured through TBCB, not to the number of substations or line packages. For the Humnabad project, POWERGRID disclosed one 3X500 megavolt-ampere 400/220 kilovolt substation and associated 400 kilovolt and 220 kilovolt lines, without specifying whether the other 10 projects have comparable scope.
POWERGRID provided a point-in-time TBCB update through 11 November 2026 rather than a full-year target. The filing contains no planned number of additional FY 2026-27 wins, cumulative annual-charge target or timetable for converting the Humnabad LoI into construction and operating milestones.
Conclusion
POWERGRID's latest TBCB win adds a Karnataka transmission package centred on a 3X500 megavolt-ampere 400/220 kilovolt substation at Humnabad, associated 400 kilovolt and 220 kilovolt lines, and Rs 243.34 crore of quoted annual transmission charges. It brings the company's disclosed FY 2026-27 TBCB portfolio to 11 projects with Rs 8,106.97 crore in cumulative annual transmission charges.
The next disclosed development to watch is progress after the LoI dated 10 November 2026, which POWERGRID received on 11 November 2026. Construction deadlines, line lengths, project cost, the BOOT operating period and the transfer schedule remain undisclosed in the current filing.