Transmission System for Transmission Scheme for Solar Energy Zone in Gadag (2500 MW), Karnataka – Part A

Government of India has set a target for establishing 175 GW renewable capacity by 2022, which includes 100 GW from Solar and 60 GW from Wind. Solar Energy Corporation of India (SECI) in association with MNRE has identified potential Solar Energy Zones (SEZ) and Wind Energy Zones (WEZ) of 66.5 GW in seven RE rich states (Tamil Nadu, Andhra Pradesh, Karnataka, Gujarat, Rajasthan, Maharashtra and Madhya Pradesh) to be evacuated through ISTS. Out of total 66.5 GW REZs, 18.5 GW (Solar-10 GW & Wind-8.5 GW) potential has been identified in the states of Tamil Nadu, Andhra Pradesh and Karnataka in Southern Region.

The transmission system was evolved for integration of 66.5 GW potential REZ in various states including18.5 GW of identified prioritized potential SEZs and WEZs in states of Tamil Nadu, Andhra Pradesh and Karnataka with the ISTS network in Southern Region. The transmission system associated with potential RE capacity, based on inputs from SECI/MNRE has been prioritised for implementation into three phases in the meeting held on 30.08.2019 at CEA, New Delhi. Out of the 18.5 GW REZ in Southern Region, 5.5 GW under Phase-I & 5 GW under Phase-II of the prioritized wind and solar energy zones has been targeted for completion by Dec’21 and balance 8 GW under Phase-III has been targeted for completion beyond Dec’21.

The 2.5 GW solar potential identified in Gadag area of Karnataka has been prioritised under Phase-II for implementation by Dec’21. The subject transmission scheme involves establishment of Gadag Pooling Station and its interconnection with ISTS grid for evacuation of solar potential from Gadag area of Karnataka.

Project Elements	1. Establishment of 400/220 kV, 5x500 MVA Gadag Pooling Station with 400 kV (1X125 MVAR) bus reactor 400kV ICT: 5x500MVA, 400/220kV ICT bay: 5 nos. Line bay: 4 nos. Bus Reactor: 1×125 MVAR, 420kV Bus Reactor bay: 1 nos. Space for future line bay with switchable line reactor: 6 nos. Space for future 400/220kV ICT along with associated bay: 1 nos. 220kV ICT bay: 5 nos. Line bay: 8 nos. Bus sectionalizer bay: 2 nos. (One no. bay for each Main Bus)* Bus coupler bay: 2 nos. * Transfer Bus coupler bay: 2 nos. * Space for future 400/220kV ICT bay: 1 nos. Space for future line bay: 4 nos. 2. Gadag PS-Koppal PS 400 kV (high capacity equivalent to quad moose) D/c line 3. 400kV GIS Line bay at Koppal PS: 2 nos. for Gadag PS-Koppal PS 400 kV (high capacity equivalent to quad moose) D/c Line 4. Gadag PS-Narendra (New) PS 400 kV (high capacity equivalent to quad moose) D/c line 5. 400kV GIS Line bay at Narendra (New): 2 nos. for Gadag PS-Narendra (New) 400 kV (high capacity equivalent to quad moose) D/c Line
Name of project specific SPV	GADAG TRANSMISSION LIMITED
Name of the successful Bidder	Project under Bidding
Date of transfer of SPV to successful Bidder/Effective Date	Project under Bidding
Scheduled COD of the Project	Project under Bidding
Levelized Transmission tariff of successful Bidder	Project under Bidding