India Discovers Rs 5.25 Per Unit RTC Renewable Tariff

Round-the-clock renewable energy refers to power supply designed for continuous availability across all time blocks of the day and combines solar, wind and energy storage systems to provide dispatchable electricity. The model aims to deliver assured supply rather than generation only during sunlight hours.

The Solar Energy Corporation of India conducted a 1,000 megawatt (MW) Firm and Dispatchable Renewable Energy auction under the SECI-FDRE-RTC-V tender. Five developers won capacity at Rs 5.25 per kilowatt-hour, including Kengeri Prime Solar Power, Resolven Four Energy, Hero Solar Energy, EMIF II Holding and Purvah Green Power. Hexa Climate and Juniper Green Energy secured additional capacity at Rs 5.26 per unit.

The Ministry of New and Renewable Energy tender conditions required developers to maintain a minimum of 90 per cent assured power delivery in every time block during peak hours. The guidelines also required 50 to 60 per cent power supply during solar hours and at least 70 per cent during the remaining periods. These criteria are linked to hybrid generation and storage based supply models used in renewable energy procurement.

Dispatchable renewable projects are relevant for applications that need scheduled and reliable electricity, including data centres and green hydrogen production facilities that rely on low carbon power. India has expanded solar, wind, hybrid and storage based power procurement in recent years and RTC and FDRE tenders form part of the broader shift towards reliable renewable electricity in the national market. The Solar Energy Corporation of India is a central public sector enterprise under the Ministry of New and Renewable Energy.

The bidding framework requires developers to offer scheduled delivery and contractual assurance for each time block, thereby supporting grid integration and commercial predictability. Such arrangements are used by central and state frameworks to procure reliable renewable power. These mechanisms are increasingly important as the market shifts to dispatchable supplies.

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