PFC Consulting has floated a tender to establish an interstate transmission system aimed at strengthening the network at the Tumkur-II substation in Karnataka. The project is intended to facilitate the integration of an additional 2.7 GW of renewable energy capacity.
According to the tender guidelines, the scope of work consists of the design, engineering, construction, and erection of the project. It also entails testing of all equipment, facilities, components, and systems of the transmission project along with providing operation and maintenance services. Moreover, the selected bidders need to provide the necessary land compensation, equipment, and materials for the project.
Establishing the transmission system will require upgrading the Tumkur-II pooling station by adding 400/220 kV, 3×500 MVA ICTs (5th to 7th) and another set of 400/220 kV, 3×500 MVA ICTs (8th to 10th). Furthermore, it also involves establishing the Tumkur-II–Madhugiri 400 kV (quad) D/C line and installing a ±300 MVAr static synchronous compensator at the pooling station, along with switching arrangements for the ongoing 2×125 MVAr bus reactors. Additionally, two 220 kV line bays and four more 220 kV line bays will be developed to connect the dedicated transmission lines of renewable energy developers. The bidders are required to submit an earnest money deposit of $145 million and a performance bank guarantee of $362.5 million. The last date for bid submission is January 23, 2026.
Earlier in September 2025, PFC Consulting issued a tender to set up an interstate transmission system to enable the evacuation of renewable energy at the South Kalamb Substation in Maharashtra.
