New Delhi: The Solar Energy Corporation of India (SECI) has allocated more than 11 GW of renewable energy capacity through its Inter-State Transmission System (ISTS) schemes, spanning solar, hybrid, wind, FDRE, and manufacturing-linked projects. The auctions attracted strong competition, reflecting robust investor confidence in India’s clean energy transition.
ISTS Solar + BESS Auctions Drive Competitive Tariffs
Under ISTS Tranche-XXI (Solar + Battery Energy Storage System), 1,200 MW of capacity was allocated at tariffs between ₹3.12–3.13 per unit. Key winners included NLC India Renewables, Engie Energy India, RPIL Power Three, and Oriana Power. These projects will supply solar power at committed Capacity Utilisation Factor (CUF) and provide additional peak-hour power, enhancing grid stability.
Similarly, ISTS Tranche-XX (Solar + BESS) awarded 2,000 MW at tariffs of ₹2.86–2.87 per unit. Companies such as Welspun Renewable Energy, Shivalaya Construction, Purvah Green Power, and SAEL Industries secured allocations. These projects also include evening peak-hour supply obligations, further integrating storage-backed renewable power into the national grid.
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Manufacturing-Linked Solar Projects Promote Domestic Capacity
In the manufacturing-linked solar segment, SECI awarded 2,366 MW capacity, with tariffs as low as ₹2.42 per unit. Major beneficiaries included Azure Power India and Adani Green Energy Four Limited. These projects support domestic solar equipment manufacturing while expanding India’s clean energy generation, aligning with the government’s push for self-reliance.
Hybrid and Wind Energy Allocations
The Hybrid Tranche-VIII and IX schemes allocated 1,800 MW at tariffs between ₹3.25–3.46 per unit, with winners including JSW Neo Energy, ACME Solar Holdings, Juniper Green Energy, AMPIN Energy Utility, and Avaada Energy. These projects combine solar and wind generation, often with storage solutions to enhance reliability.
The ISTS Wind Tranche-XIX allocated 1,200 MW at tariffs of ₹3.67–3.69 per unit. Developers such as KP Energy, Waaree Forever Energies, and Vena Energy Aura secured standalone wind capacity projects across various states.
Firm and Dispatchable Renewable Energy (FDRE) Projects
In the FDRE category, tariffs were higher, ranging from ₹6.27–8.10 per unit, due to assured peak supply obligations. Winners like Serentica Renewables, ACME Solar Holdings, and Adyant Enersol will deliver electricity during non-solar hours, improving grid reliability for distribution companies.
Strengthening India’s Renewable Energy Market
The auction results highlight the maturity of India’s renewable energy market, combining solar, wind, and storage solutions with peak-hour supply obligations. By awarding over 11 GW of capacity, SECI continues to support India’s target of achieving 500 GW of non-fossil fuel capacity by 2030, while maintaining globally competitive tariffs.
About SECI
Solar Energy Corporation of India (SECI) is a government-owned entity that facilitates the implementation of solar and renewable energy projects across India. SECI plays a pivotal role in accelerating clean energy adoption, promoting domestic manufacturing, and integrating reliable renewable power into the national grid.
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