With 48 GW Completed, India Ramps Up Grid for Renewable Future

India has developed 48 gigawatts (GW) of inter-state transmission system (ISTS) capacity to facilitate renewable energy evacuation, the government informed the Parliament in a written reply before the Parliament. The move supports the country’s broader ambition of integrating 230 GW of solar and wind energy into the national grid.

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ISTS Expansion to Support Green Energy

Minister of State (MoS) for Power Shripad Naik told the Parliament that the total planned ISTS capacity stood at 340 GW. Of this, 48 GW has already been commissioned. He also added that 159 GW is currently under construction, 21 GW is under the bidding stage, and 112 GW is under planning.

The transmission schemes are approved based on the expected commissioning timelines of renewable energy projects to ensure timely and efficient grid integration.

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Intra-State Infrastructure Under GEC Schemes

Alongside the development of the inter-state transmission network, India is also strengthening its intra-state transmission systems through two Green Energy Corridor (GEC) schemes. The first phase, GEC-I, with a total investment of over INR 10,141 crore, is being implemented across eight states, including Karnataka, Tamil Nadu, and Gujarat.

The second phase, GEC-II, involves an allocation of about INR 12,031 crore and is currently underway in seven states, such as Kerala, Rajasthan, and Uttar Pradesh. These initiatives aim to enhance the infrastructure required to absorb and transmit renewable energy at the state level.

To further support long-term clean energy integration, states have been advised to prepare 10-year transmission system plans. This forward-looking approach is intended to align state-level infrastructure development with national renewable energy targets.

India’s power demand touched a peak of 2,43,118 megawatts (MW) in June 2025. Of this, 2,42,493 MW was successfully supplied, leaving a marginal shortfall of just 625 MW. The near-complete demand coverage reflects improving energy infrastructure and grid reliability amid rising consumption.