PFC Consulting has invited bids to set up a 3×500 MVA, 400/220 kV substation, along with associated transmission lines, at Humnabad in Bidar district, Karnataka.

Bids must be submitted by April 14, 2026. Bids will be opened on the same day.

The transmission system is part of the plan to evacuate 12,580 MW of renewable energy with three 765/400 kV substations and several 400/220 kV substations in north Karnataka to feed the load in South Karnataka.

Bidders must furnish an earnest money deposit of ₹104.2 million (~$1.15 million), and a tender document fee of ₹500,000 (~$5,517) plus 18% GST. The successful bidder must submit a performance guarantee of ₹260.4 million (~$2.87 million) within 10 days of issuance of the letter of intent.

The tender involves developing a 400/220 kV substation equipped with interconnecting transformers, bus reactors and bays, along with line works including the loop-in loop-out (LILO) of the 400 kV YTPS–Kalaburgi double circuit line, 220 kV double circuit lines to Ganagapura and Santhapur substations, and LILO of existing 220 kV lines from Sedam and Kapnoor.

The project capacity is specified as 3×500 MVA at the 400/220 kV level. Interconnection voltage levels are 400 kV and 220 kV. Karnataka Power Transmission Corporation will provide land for the substation.

The scope of work includes surveying, design, engineering, procurement, construction, operation, and maintenance of the project, as well as obtaining all required consents, clearances, and permits.

Bidders must have experience in the last five years with aggregate capital expenditure of at least ₹5.20 billion (~$57.49 million), with each project not less than ₹1.04 billion (~$11.50 million), or construction experience with aggregate payments received of at least ₹5.20 billion (~$57.49 million), with each project not less than ₹1.04 billion (~$11.50 million).

Bidders must have a minimum net worth of ₹2.5 billion (~$27.59 million) over the last three financial years. Their net worth should not have been negative in any of the past three financial years.

The project must be commissioned simultaneously, with a scheduled commercial operation date (COD) within 30 months from the effective date. The tenure of the transmission service agreement is 35 years from the COD.

Consortium participation is permitted, with one lead member holding at least 26% equity and retaining a minimum 26% for up to one year after COD, while the aggregate equity holding of the selected bidder must remain at least 51% for up to one year after COD.

Earlier this year, PFC Consulting invited bids to select transmission service providers to establish an interstate transmission system for the integration of the Krishnagiri Renewable Energy Zone Phase-I in Andhra Pradesh on a build, own, operate, and transfer basis.

In November 2025, PFC Consulting invited bids to establish an intrastate transmission system involving a 765/400/220 kV air-insulated substation at Dolvi in the Raigad District of Maharashtra.