New Delhi, India | June 2026 — Power Grid Corporation of India Limited (POWERGRID) has achieved a significant milestone in India’s power infrastructure development after being declared the successful bidder under the Tariff Based Competitive Bidding (TBCB) mechanism for the prestigious “WR–ER Inter-Regional Network Expansion Scheme Part-A.”
The company received the Letter of Intent (LoI) on June 16, 2026, paving the way for the implementation of a large-scale transmission project designed to strengthen the country’s electricity network and enhance power transfer capabilities between the Western Region (WR) and Eastern Region (ER).
The project will be executed under the Build, Own, Operate, and Transfer (BOOT) model, reaffirming POWERGRID’s leadership in developing critical transmission infrastructure that supports India’s growing energy requirements.
Major Boost to India’s National Power Grid
The WR–ER Inter-Regional Network Expansion Scheme Part-A is a strategically important transmission project aimed at improving the efficiency, reliability, and resilience of India’s national electricity grid.
As electricity demand continues to rise across industrial, commercial, and residential sectors, strengthening inter-regional transmission corridors has become essential for ensuring uninterrupted power supply and effective utilization of generation resources across the country.
The project is expected to significantly improve power transfer capacity between regions while supporting future energy infrastructure growth.
Project Scope and Key Components
Under the awarded transmission scheme, POWERGRID will undertake the development of several critical infrastructure assets across multiple states.
Key Project Components Include:
1. New 765/400 kV Substations
The project involves the establishment of two new 765/400 kV substations strategically located in:
- Jharkhand
- Chhattisgarh
These substations will serve as important transmission hubs for facilitating efficient power distribution and regional connectivity.
2. Expansion of Existing Substations
POWERGRID will also carry out the extension and augmentation of existing substations located in:
- Chhattisgarh
- West Bengal
The upgrades will enhance operational flexibility and improve overall grid performance.
3. Construction of High-Capacity Transmission Lines
The scheme includes the construction of:
- 765 kV Transmission Lines
- 400 kV Transmission Lines
These high-voltage transmission corridors will enable large-scale power transfer across state boundaries while minimizing transmission losses.
4. Multi-State Coverage
The project will span across four key states:
- Jharkhand
- Chhattisgarh
- Odisha
- West Bengal
This extensive geographic coverage will strengthen regional connectivity and improve electricity flow across eastern and central India.
Strategic Importance for India’s Energy Sector
The WR–ER transmission corridor is considered one of the most critical components of India’s long-term power transmission expansion strategy.
Industry experts believe the project will deliver several key benefits:
Enhanced Power Evacuation
The transmission system will facilitate the efficient evacuation of electricity from generation-rich regions, ensuring optimal utilization of power generation assets.
Improved Grid Stability
By creating additional transmission pathways and network redundancy, the project will strengthen grid reliability and reduce the risk of disruptions.
Support for Renewable Energy Integration
As India accelerates its transition toward clean energy, the new transmission infrastructure will help accommodate future renewable energy projects, including large-scale solar and wind power installations.
Strengthened Energy Security
The enhanced inter-regional network will allow states to access electricity more efficiently during periods of high demand, improving overall energy security and resource sharing across regions.
Reduced Transmission Congestion
The project is expected to ease transmission bottlenecks and improve the seamless movement of electricity throughout the national grid.
POWERGRID’s Continued Leadership in Transmission Infrastructure
As one of India’s most important power sector enterprises, POWERGRID has played a central role in developing and operating the country’s interstate and inter-regional transmission network.
The company has consistently led the implementation of large-scale transmission projects that support economic growth, industrial development, and energy accessibility.
Its expertise in planning, engineering, construction, and operation of high-voltage transmission systems has made it a key contributor to India’s power sector modernization efforts.
Looking Ahead
With the receipt of the Letter of Intent, POWERGRID is expected to begin the next phase of project development, including detailed planning, regulatory approvals, and execution activities.
The successful award of the WR–ER Inter-Regional Network Expansion Scheme Part-A underscores the company’s commitment to strengthening India’s transmission infrastructure and supporting the nation’s long-term energy goals.
Conclusion
The award of the WR–ER Inter-Regional Network Expansion Scheme Part-A marks another major achievement for POWERGRID and a significant step forward in India’s power sector development. Through the establishment of new 765/400 kV substations, expansion of existing facilities, and construction of critical transmission corridors, the project will enhance grid reliability, improve inter-state power transfer, and support the country’s growing demand for electricity.
As India moves toward a more interconnected and sustainable energy future, projects such as this will play a vital role in ensuring a stronger, smarter, and more resilient national power grid.
