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Green Energy Corridor Phase-III: ₹1.86 lakh crore for intra-State transmission and 50 GWh battery storage

2 min readEnergyRenewable Energy
Battle IAS current affairs title card: Green Energy Corridor Phase-III: ₹1.86 lakh crore for intra-State transmission and 50 GWh battery storage (GS3 · Energy infrastructure, 30 September 2026)
Battle Brief

On 30 September 2026 the Union Cabinet approved Green Energy Corridor Phase-III, with an outlay of ₹1,86,405 crore by 2032-33. It will strengthen intra-State transmission to carry up to 135 GW of renewable energy and add 50 GWh of battery storage. Central financial support is ₹54,082 crore, to keep transmission charges and power costs down.

Fact File

Approved
Union Cabinet, 30 Sep 2026
Outlay
₹1,86,405 crore
InSTS share
₹1,36,378 crore
BESS
50 GWh, ₹50,000 crore
Central support
₹54,082 crore
Target year
2032-33
In the news

Green Energy Corridor Phase-III: what happened?

Solar and wind power must reach consumers through State grids, and they produce unevenly through the day. GEC-III builds the State-level lines and adds batteries to smooth supply.

  • Cabinet approved GEC-III to strengthen Intra-State Transmission Systems (InSTS) to evacuate up to 135 GW of renewable energy [PIB].
  • It includes 50 GWh of Battery Energy Storage Systems; total outlay ₹1,86,405 crore (₹1,36,378 crore InSTS + ₹50,000 crore BESS), target FY 2032-33 [PIB].
Back Story

How will it be implemented?

  • Greenfield intra-State lines through Tariff Based Competitive Bidding (TBCB).
  • Brownfield upgrades through Cost Plus Basis.
  • State Transmission Utilities are the overall implementing agencies.
  • Transmission Service Providers work on a Build-Own-Operate-Maintain (BOOM) model.
How it works

How does GEC-III help renewable power reach homes?

Simplified chain

  1. Solar and wind plants generate power
  2. Batteries (BESS) store surplus and cover non-solar hours
  3. Intra-State transmission lines evacuate power
  4. Central support offsets transmission charges, keeping tariffs low
Why examiners care

Why does Green Energy Corridor Phase-III matter?

AngleWhat to note
Energy transitionSupports 900 GW non-fossil capacity by 2035.
Grid stabilityBESS addresses intermittency, congestion and peak curtailment.
EconomyJobs in power, manufacturing, construction and storage industry.
FederalStates lead execution with central funding.
Fault Lines

What are the challenges in Green Energy Corridor Phase-III?

  • Land and right-of-way delays for transmission lines.
  • Battery costs and supply chains.
  • State utility finances.
Road Ahead

What should be done next on Green Energy Corridor Phase-III?

  • Fast clearances for lines.
  • Domestic BESS manufacturing.
  • Timely bidding under TBCB.
Exam Radar

What can Prelims ask on Green Energy Corridor Phase-III?

  • GEC-III: 135 GW RE evacuation; 50 GWh BESS.
  • Outlay ₹1,86,405 crore; CFA ₹54,082 crore.
  • Target 900 GW non-fossil capacity by 2035.
  • TBCB and BOOM model.
Answer Lab

How to write about Green Energy Corridor Phase-III in Mains

Practice question (15 marks, 250 words): Transmission and storage, not generation, are now the main bottlenecks in India’s renewable energy growth. Discuss with reference to Green Energy Corridor Phase-III.

  • Intro: GEC-III.
  • Why transmission and storage matter.
  • Design features.
  • Challenges.
  • Way forward.

How to use this in Mains

GS-III Infrastructure: energy, ports, roads, airports, railways; investment models

  1. As per PIB, Cabinet (2026-09-30): cabinet approved GEC-III to strengthen Intra-State Transmission Systems (InSTS) to evacuate up to 135 GW of renewable energy.
  2. Grid integration of renewables is the bottleneck behind India's 500 GW non-fossil target: core GS3.
Quotable data point

It includes 50 GWh of Battery Energy Storage Systems; total outlay ₹1,86,405 crore (₹1,36,378 crore InSTS + ₹50,000 crore BESS), target FY 2032-33.

PIB, Cabinet: Green Energy Corridor Phase-III, 30 Sep 2026

Exam angle

UPSC

Mains: Why transmission and storage, not generation, now limit renewable growth.

Practice MCQs

Original practice questions (not PYQs).

Practice · UPSC

Green Energy Corridor Phase-III provides for battery energy storage of

Answer (b) & explanation

PIB, 30 Sep 2026.

Practice · UPSC

Greenfield intra-State transmission projects under GEC-III will be implemented through

Answer (b) & explanation

PIB, 30 Sep 2026.

Quick questions

Questions students ask about this

What is Green Energy Corridor Phase-III?

A scheme to build intra-State transmission for 135 GW of renewable power and add 50 GWh of battery storage, costing ₹1,86,405 crore.

How much central support does it get?

₹54,082 crore.

Who implements it?

State Transmission Utilities, with private Transmission Service Providers under TBCB.

Keep studying

Go deeper

ExplainerRenewable Energy in India: Potential, Installed Capacity, 500 GW Target, Key Schemes (PM-KUSUM, PM Surya Ghar), Challenges and Way Forward (UPSC Notes + PYQs)ExplainerGreen Hydrogen: Colours of Hydrogen, Electrolysis, National Green Hydrogen Mission, Uses, Costs and Challenges (UPSC Notes + PYQs)

Official source: PIB, Cabinet: Green Energy Corridor Phase-III, 30 Sep 2026

facts from cited sources only; faculty review pending