India Commissions 48 GW Inter-State Transmission Network to Boost Renewable Energy

23 Jul 2025

Approximately 48 GW of the interstate transmission system (ISTS) network has been commissioned to facilitate the evacuation of solar and wind power, while an additional 159 GW is currently under construction, Parliament was informed on Monday.

A 340 GW Inter-State Transmission System (ISTS) network has been planned to facilitate the evacuation of 230 GW of solar and wind power connected to the ISTS, Minister of State for Power Shripad Naik informed the Rajya Sabha.

To date, 48 GW of the total planned capacity has been completed, 159 GW is currently under construction, 21 GW is in the bidding stage, and 112 GW is in the planning phase. "Transmission schemes are approved by the Ministry of Power or the relevant authority in alignment with the scheduled commissioning timelines of renewable energy projects," he said.

The minister stated that the Green Energy Corridor (GEC) Phase-I Scheme for the Intra-State Transmission System (InSTS) is currently being implemented in eight states—Karnataka, Madhya Pradesh, Rajasthan, Tamil Nadu, Andhra Pradesh, Gujarat, Himachal Pradesh, and Maharashtra—at an estimated cost of ?10,141.68 crore.

The GEC-II scheme is currently being implemented in Gujarat, Himachal Pradesh, Karnataka, Kerala, Rajasthan, Tamil Nadu, and Uttar Pradesh, with a total investment of ?12,031.33 crore. Further, states have been advised to develop their respective InSTS plans with a 10-year outlook, Naik stated. In June, the minister reported that peak power demand reached 2,43,118 MW, while the peak demand met stood at 2,42,493 MW — a shortfall of 625 MW.