UPSC Darpan

EconomyGS31 October 2026

Cabinet clears Green Energy Corridor Phase III: ₹1.86 lakh crore for 135 GW with batteries

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The news

New Delhi. The Union Cabinet on Wednesday, September 30, approved the third phase of the Green Energy Corridor (GEC-III), with a project outlay of ₹1,86,405 crore, to let States carry up to 135 GW of renewable power into their grids by 2032-33. Of this, ₹1,36,378 crore is for intra-State transmission lines and ₹50,000 crore for 50 GWh of battery energy storage systems (BESS) — the first storage component in the programme. Central financial assistance is ₹54,082 crore, which the government says will offset intra-State transmission charges; The Economic Times reports ₹6,000 crore of it as viability gap funding (a one-time capital grant that makes a project bankable) for batteries. The scheme targets curtailment, when grid operators make solar or wind plants cut output because lines cannot carry it. Lines will be awarded through tariff-based competitive bidding, Union Minister Ashwini Vaishnaw said.

The chain in one line: India adds solar and wind faster than transmission → lines in renewable-rich States congest → grid operators curtail clean power, especially at midday → Centre funds intra-State lines in GEC I and II → GEC-III adds 135 GW of evacuation and, for the first time, battery storage

Static syllabus linkage

  1. Inter-State and intra-State transmission are planned and regulated separately. Under the Electricity Act, 2003, the Central Transmission Utility plans the inter-State transmission system (ISTS), regulated by the Central Electricity Regulatory Commission; each State Transmission Utility handles intra-State lines under its State commission. Section 63 allows tariffs discovered through competitive bidding. GEC-II, approved in January 2022, funded intra-State lines for about 20 GW with 33% central assistance.
  2. India’s clean-power targets are about capacity, not just generation. At COP26 in Glasgow (2021), India announced 500 GW of non-fossil capacity by 2030. Its updated NDC of August 2022 commits to about 50% of installed electric capacity from non-fossil sources by 2030 and a 45% cut in the emissions intensity of GDP from 2005 levels.

Why UPSC loves this

  1. GS3 links infrastructure to the energy transition. “Infrastructure: Energy, Ports, Roads” and “conservation, environmental pollution” meet in grid integration; questions on renewables now turn on storage, transmission and intermittency rather than targets alone.

Prelims nuggets

  • Under the Electricity Act, 2003, the Central Transmission Utility plans the inter-State transmission system, while each State Transmission Utility handles intra-State transmission.
  • Section 63 of the Electricity Act, 2003 lets a regulator adopt a tariff discovered through transparent competitive bidding.
  • Curtailment is the forced reduction of output from a generator, often solar or wind, because the grid cannot absorb or carry it.
  • Viability gap funding is a one-time capital grant that bridges the gap between a project’s cost and what its revenues can support.

Analysis

  1. Lens — Development and environment: wires, not panels, are now the binding constraint. A solar plant that cannot send its power out wastes both money and the emissions it was meant to avoid. GEC-III spends nearly three-quarters of its outlay on lines, an admission that generation has outrun transmission. The environmental cost is real too: lines need land and forest corridors, as the Morbi tower dispute showed. A wise officer accepts lines as the price of clean power but insists on fair compensation and routes that spare fragile forests.
  2. Batteries change what solar can do, but 50 GWh is a beginning. Solar peaks at noon while demand peaks after sunset; a battery stores midday power for the evening. At ₹50,000 crore for 50 GWh, the scheme assumes about ₹1 crore per MWh of storage. Against 135 GW of new evacuation, that covers a few evening hours for part of the capacity; pumped hydro and more batteries will still be needed.
  3. The Centre is paying for State lines because the benefit crosses State borders. Renewable-rich States such as Rajasthan or Gujarat build lines for power that others consume, and would pass the cost to their own consumers. Central assistance that offsets intra-State charges spreads that burden nationally. The risk is that States treat the grant as a substitute for their own planning.

Possible Mains question

“Transmission, not generation, is now the binding constraint on India’s renewable energy transition.” Examine with reference to Green Energy Corridor Phase III. (15 marks, 250 words)

Model approach

  1. Directive — Examine. Probe the claim with evidence and show how far it holds.
  2. Introduction — GEC-III: ₹1.86 lakh crore, 135 GW, 50 GWh by 2032-33. Link to the 500 GW target.
  3. Curtailment shows lines lag capacity. Value addition: ₹1,36,378 crore for intra-State lines, compared with about ₹10,141 crore for GEC-I.
  4. Storage solves timing, which lines cannot. Draw a 24-hour curve: solar peaking at noon, demand peaking after sunset, battery shifting the gap.
  5. Federal cost-sharing makes lines possible. Central assistance offsets State transmission charges.
  6. Conclusion — plan generation, lines and storage together. Integrated planning with land and forest safeguards.

Administrator's brainstorm

As District Collector in a solar-rich district, farmers resist land for a GEC-III transmission line. What do you do?

I would hold open meetings on the route, the compensation for tower footprints and right-of-way, and the line’s purpose. I would ensure compensation follows current guidelines and is paid before work starts. Where a route crosses orchards or homesteads, I would ask the developer to examine realignment. A line built with consent finishes faster than one built through litigation.