Green Energy Corridor Phase-III Approved: ₹1.86 Lakh Crore, 135 GW Renewable Energy and 50 GWh Battery Storage | हरित ऊर्जा गलियारा चरण-3

Why in News?

On 30 September 2026, the Union Cabinet chaired by Prime Minister Narendra Modi approved the Green Energy Corridor Phase-III scheme. The scheme aims to strengthen intra-state electricity transmission infrastructure and support the integration of large quantities of renewable energy into India's power grid.

According to the Ministry of New and Renewable Energy, the programme will facilitate evacuation of up to 135 gigawatts of renewable energy and deployment of 50 gigawatt-hours of Battery Energy Storage Systems. The total project outlay is ₹1,86,405 crore, including ₹54,082 crore in Central financial support. The scheme is targeted for implementation by financial year 2032–33.

What Is the Green Energy Corridor?

A Green Energy Corridor is electricity transmission infrastructure developed to help carry electricity generated from renewable energy sources to the wider power network and consumers. It is particularly important because large solar and wind projects may be located far from major centres of electricity demand.

Transmission infrastructure is necessary to move generated electricity from production areas to substations, distribution networks and other parts of the grid. Without sufficient transmission capacity, renewable power plants may face difficulties delivering all the electricity they can generate.

What Is Green Energy Corridor Phase-III?

Green Energy Corridor Phase-III, abbreviated GEC-III, is the newly approved programme for strengthening intra-state transmission systems and deploying battery storage. Its purpose is to improve renewable power evacuation and grid flexibility.

The scheme combines transmission infrastructure with energy storage because renewable electricity generation does not always match the timing of electricity demand.

Major Financial Provisions

The Cabinet approved a total outlay of ₹1,86,405 crore. Of this, ₹1,36,378 crore is allocated to the development of intra-state transmission systems and ₹50,000 crore to the deployment of 50 GWh of Battery Energy Storage Systems.

The programme includes total Central financial support of ₹54,082 crore. The Ministry stated that Central Financial Assistance would help offset intra-state transmission charges and support efforts to keep electricity costs down.

The total project outlay and Central financial support are different figures. The Central contribution should not be mistaken for the entire programme cost.

Renewable Energy Evacuation of 135 GW

The scheme is designed to enable evacuation of up to 135 GW of renewable energy across participating States and Union Territories. In electricity systems, evacuation refers to transporting power generated at a plant into the transmission network so that it can be delivered for use.

The 135 GW figure describes the renewable generation capacity that the planned transmission infrastructure is intended to accommodate. It is not a claim that the scheme will itself construct 135 GW of new solar or wind generation plants.

What Is a Gigawatt?

A watt is a unit of power. One kilowatt equals 1,000 watts, one megawatt equals one million watts, and one gigawatt equals one billion watts.

Power describes the rate at which energy is produced or used. Electricity infrastructure capacity is often expressed in megawatts or gigawatts.

What Is a Gigawatt-Hour?

A watt-hour is a unit of energy. One gigawatt-hour equals one billion watt-hours. Gigawatt-hours are used to express quantities of electrical energy, including the energy-storage capacity of batteries.

Gigawatts and gigawatt-hours must not be confused. Gigawatts measure power, while gigawatt-hours measure energy. A battery system's energy capacity alone does not determine how quickly it can discharge electricity.

50 GWh Battery Energy Storage Systems

The Cabinet approved provision for 50 GWh of Battery Energy Storage Systems, commonly abbreviated BESS. The systems may be installed at renewable energy developer or generator locations or other sites important for grid flexibility.

Battery storage can absorb electricity when generation is abundant and release it later when required, subject to its technical capacity and operating conditions.

The Ministry identified intermittency, transmission congestion, peak-hour curtailment and demand during non-solar hours as important challenges that the storage component is intended to address.

Why Is Renewable Energy Intermittent?

Solar electricity generation changes with sunlight availability, while wind generation changes with wind conditions. Consequently, output can vary during the day and across seasons.

Electricity demand also varies. Households, industries and commercial establishments may require substantial power when solar generation is low. Energy storage and stronger transmission networks help manage the difference between generation and consumption.

What Is Grid Flexibility?

Grid flexibility is the ability of the electricity system to respond to changes in generation and demand while maintaining reliable service.

Flexibility can be supported by energy storage, suitable generation resources, transmission capacity, demand management and coordinated grid operations.

Battery systems can contribute by charging during periods of surplus electricity and discharging when additional supply is needed.

What Is Transmission Congestion?

Transmission congestion occurs when the electricity network cannot transport all the power that generators or users would otherwise wish to send through it without exceeding operational limits.

Congestion may restrict renewable power evacuation and require system operators to adjust generation or electricity flows. Additional transmission capacity and strategically located storage can help address such constraints.

What Is Curtailment?

Curtailment occurs when a power generator is instructed or required to reduce output below what it could otherwise produce. Renewable energy curtailment may arise because of transmission constraints, system balancing requirements or other operational conditions.

Storage can help absorb some excess generation, while stronger transmission systems can improve the ability to transport electricity to locations where it is needed.

Why Are Non-Solar Hours Important?

Non-solar hours are periods when solar photovoltaic systems are not generating electricity, such as nighttime. Electricity demand continues during these hours.

Battery storage charged earlier can provide electricity during some of these periods. The duration of supply depends on the battery's stored energy, discharge power and operating conditions.

Intra-State Transmission Systems

Intra-State Transmission Systems, abbreviated InSTS, are electricity transmission networks operating within a State. They connect generation facilities, substations and other parts of the State's power infrastructure.

The new programme focuses on strengthening such systems so that participating States and Union Territories can integrate additional renewable generation more effectively.

Who Will Implement the Scheme?

The Ministry stated that State Transmission Utilities will be the overall implementing agencies. These utilities play an important role in planning and operating State-level electricity transmission infrastructure.

Transmission Service Providers will participate in relevant projects selected through the competitive bidding framework.

Greenfield and Brownfield Projects

A greenfield project generally involves developing new infrastructure, while a brownfield project involves upgrading, expanding or strengthening existing infrastructure.

Under GEC-III, all greenfield projects in the intra-state transmission component will be implemented through Tariff Based Competitive Bidding. Brownfield upgrades and network-strengthening works will be executed on a Cost Plus Basis.

What Is Tariff Based Competitive Bidding?

Tariff Based Competitive Bidding is a procurement mechanism in which qualified participants compete to provide a service under a specified tariff framework. Competition can help determine the cost of providing transmission services.

For GEC-III, this method is specified for greenfield intra-state transmission projects. Actual procurement and implementation must follow the applicable rules and project conditions.

What Is the Cost Plus Basis?

Under a cost-plus approach, compensation or allowed charges are linked to eligible costs together with an approved return or other permitted components under the relevant regulatory framework.

The Cabinet announcement specifies this approach for brownfield upgrades and network-strengthening works under the scheme.

BOOM Model

Transmission Service Providers participating through competitive bidding will operate under the Build-Own-Operate-Maintain model, abbreviated BOOM.

Under this model, the selected provider develops the infrastructure, owns it, operates it and maintains it according to the applicable contractual and regulatory arrangements.

Central Financial Assistance

Central Financial Assistance refers to financial support provided by the Union Government for eligible activities or projects. Under GEC-III, the approved Central support totals ₹54,082 crore.

The Ministry stated that this assistance would help offset intra-state transmission charges and ultimately benefit electricity consumers by supporting efforts to contain costs.

The announcement does not establish a fixed reduction in every household's electricity bill, so no universal consumer saving should be assumed.

Target of 900 GW Non-Fossil Capacity by 2035

The Ministry linked GEC-III with the stated objective of achieving 900 GW of installed non-fossil electricity generation capacity by 2035.

Non-fossil capacity is broader than solar and wind energy alone. The category can include other electricity generation technologies that do not rely on fossil fuels.

The 900 GW figure is a national capacity objective cited in the official release. The 135 GW figure relates specifically to renewable power evacuation enabled by the GEC-III transmission programme.

Energy Security

Energy security involves having access to reliable, affordable and adequate energy supplies. Diversifying electricity generation sources and improving the grid can strengthen resilience.

Renewable energy integration may reduce reliance on some fossil-fuel-based generation over time, although electricity system reliability requires careful planning and adequate supporting infrastructure.

Environmental Importance

The Ministry expects the scheme to contribute to ecologically sustainable growth and a reduction in the country's carbon footprint.

Greater use of low-emission electricity can help reduce greenhouse gas emissions where it replaces more carbon-intensive generation. However, the environmental impacts of transmission construction, battery manufacturing and end-of-life management must also be considered.

Battery Manufacturing and Recycling

Expanding battery storage can create opportunities for domestic battery manufacturing, engineering, installation and maintenance.

At the same time, battery technologies require minerals, industrial processing and suitable waste-management arrangements. Responsible sourcing and recycling are important for improving the sustainability of energy-storage systems.

Employment Opportunities

The Ministry stated that the scheme is expected to generate direct and indirect employment in the power, manufacturing and construction sectors. Additional skilled opportunities may arise in battery deployment, grid management, operation and maintenance.

The official release did not provide a specific verified number of jobs to be created. Therefore, the employment benefit should be described as expected rather than quantified without evidence.

Implementation Timeline

The programme is targeted to be established by financial year 2032–33. This is a future implementation target, not an indication that all transmission and storage projects were already completed when the Cabinet approved the scheme.

UPSC GS-III Relevance

The scheme is relevant to energy infrastructure, renewable energy, electricity transmission, technological development, energy security, climate change and sustainable economic growth.

A mains answer can explain why adding renewable generation capacity is not sufficient without adequate transmission, storage and grid management. It can also discuss financing, battery supply chains, environmental safeguards and the importance of reliable electricity.

UPSC Prelims Relevance

Important concepts include Green Energy Corridor Phase-III, Battery Energy Storage Systems, intra-state transmission, energy evacuation, gigawatts versus gigawatt-hours, grid congestion, curtailment, competitive bidding and the BOOM model.

SSC, Railway and State PCS Relevance

Students should remember the approval date, total outlay, Central financial support, transmission and battery allocations, renewable power evacuation capacity, storage capacity and target financial year.

Important Examination Facts

• Cabinet approval date: 30 September 2026.
• Scheme: Green Energy Corridor Phase-III.
• Abbreviation: GEC-III.
• Ministry: Ministry of New and Renewable Energy.
• Cabinet chaired by: Prime Minister Narendra Modi.
• Total project outlay: ₹1,86,405 crore.
• Intra-state transmission allocation: ₹1,36,378 crore.
• Battery energy storage allocation: ₹50,000 crore.
• Total Central financial support: ₹54,082 crore.
• Renewable energy evacuation capacity: Up to 135 GW.
• Battery energy storage capacity: 50 GWh.
• Target completion: FY 2032–33.
• National non-fossil capacity objective cited: 900 GW by 2035.
• Overall implementing agencies: State Transmission Utilities.
• Greenfield transmission projects: Tariff Based Competitive Bidding.
• Brownfield upgrades: Cost Plus Basis.
• Transmission Service Provider model: Build-Own-Operate-Maintain.
• Official PIB Release ID: 2316950.

Official Source

Ministry of New and Renewable Energy, Press Information Bureau, 30 September 2026, Release ID 2316950.