The Green Energy Corridors (GEC) are dedicated power transmission networks developed to evacuate and integrate electricity generated from renewable energy sources such as solar and wind into the national grid.
The programme is implemented by the Ministry of New and Renewable Energy (MNRE) in coordination with the Ministry of Power, Power Grid Corporation of India Ltd. (PGCIL), State Transmission Utilities (STUs) and Central Transmission Utility (CTU).
The objective is to ensure that renewable energy generated in resource-rich regions reaches demand centres efficiently without grid instability.
Why Green Energy Corridors Were Needed
Renewable energy sources such as solar and wind are often located far from consumption centres.
Examples include:
- Solar parks in Rajasthan and Gujarat
- Wind farms in Tamil Nadu, Karnataka and Gujarat
- Hybrid renewable parks in western India
- Ultra Mega Renewable Energy Parks in Ladakh
Without dedicated transmission infrastructure, large quantities of renewable power cannot be evacuated, resulting in renewable energy curtailment.
Green Energy Corridors solve this problem by creating transmission infrastructure specifically designed for renewable energy.
Objectives
The programme aims to:
- evacuate renewable energy from generation centres
- strengthen the national transmission network
- integrate renewable energy into the grid
- reduce renewable energy curtailment
- improve grid reliability
- support India’s renewable energy targets
- facilitate interstate and intrastate power transfer
- strengthen energy security
Components of Green Energy Corridors
The programme has two major components.
1. Intra-State Green Energy Corridor (InSTS)
Developed by State Transmission Utilities.
It strengthens transmission within renewable-rich states by constructing:
- transmission lines
- substations
- reactive power compensation systems
- Renewable Energy Management Centres (REMCs)
This enables evacuation of renewable energy from generation sites to the interstate grid.
2. Inter-State Green Energy Corridor (ISTS)
Developed mainly by Power Grid Corporation of India Ltd.
It transfers renewable electricity across states to major demand centres through the national transmission network.
This is particularly important because renewable-rich states often generate more electricity than they consume.
Green Energy Corridor – Phase I
Phase I was launched in 2015–16.
Major features:
- Covered 8 renewable-rich states
- Targeted evacuation of around 24 GW of renewable energy
- Focused on strengthening intra-state transmission systems
- Included establishment of Renewable Energy Management Centres (REMCs) for forecasting and grid management
Green Energy Corridor – Phase II
Phase II focuses on further strengthening transmission infrastructure.
Major features:
- Approved by the Union Cabinet
- Covers 7 states:
- Gujarat
- Himachal Pradesh
- Karnataka
- Kerala
- Rajasthan
- Tamil Nadu
- Uttar Pradesh
- Aims to facilitate integration of around 20 GW of additional renewable energy
- Includes construction of about 10,750 circuit kilometres of transmission lines
- Includes around 27,500 MVA of substation capacity
- Estimated project cost: ₹12,031 crore
- 33% Central Financial Assistance (CFA) provided by MNRE
Green Energy Corridor for Ladakh
A separate Inter-State Green Energy Corridor Phase-II has also been approved for Ladakh.
Its objective is to evacuate approximately 13 GW of renewable energy from Ladakh through a high-capacity transmission system. This project is expected to unlock Ladakh’s vast solar and wind potential.
Renewable Energy Management Centres (REMCs)
REMCs are specialised control centres established to improve grid management.
Their functions include:
- renewable energy forecasting
- scheduling
- real-time monitoring
- grid balancing
- renewable energy dispatch
- weather forecasting integration
They improve the reliability of renewable energy integration into the national grid.
Importance
Green Energy Corridors are essential because renewable energy generation is intermittent.
Solar power is available only during daytime, while wind generation varies with weather conditions.
Dedicated transmission infrastructure helps:
- maintain grid stability
- reduce transmission bottlenecks
- improve power evacuation
- reduce renewable energy wastage
- support flexible grid operation
Link with India’s Renewable Energy Targets
Green Energy Corridors support India’s commitments to:
- 500 GW non-fossil fuel electricity capacity by 2030
- Net Zero by 2070
- National Green Hydrogen Mission
- PM Surya Ghar Yojana
- Solar Parks Scheme
- Offshore Wind Mission
- Energy Transition
Without transmission expansion, renewable capacity addition alone cannot achieve these targets.
Significance
Green Energy Corridors are the backbone of India’s renewable energy transition.
Their importance lies in:
- enabling large-scale renewable energy integration
- reducing renewable power curtailment
- strengthening the national grid
- improving interstate electricity transfer
- supporting energy security
- facilitating achievement of India’s climate commitments
- enabling future expansion of solar, wind and green hydrogen projects
In simple terms, renewable energy cannot contribute meaningfully unless it can be transmitted reliably to consumers. Green Energy Corridors provide this critical transmission infrastructure, making them one of the most important enablers of India’s clean energy transition.
