6F22 carbon battery.India restarts bidding for renewable energy + energy storage projects, allowing bids for any energy storage technology

　　Solar Energy Corporation of India has once again tried its hand at bidding for renewable energy + storage projects. This time, the agency issued a tender with special terms that could result in lower offers and attractive purchase rates for buyers.

　　Specifically, Solar Energy Corporation of India has offered developers tenders for 1.2 GW of renewable energy + storage projects. According to the bidding conditions, developers can build wind, solar or hybrid projects, with the size of any project between 50-300 MW, while group companies can bid for projects with a maximum capacity of 600 MW.

　　The tender was issued in accordance with central government policy and is part of the inter-state transmission system plan, which allows bidders to choose their own sites for construction. Solar Energy Corporation of India will look for distribution companies interested in purchasing power from these renewable energy + storage projects and then sign long-term power purchase agreements with them, which can last up to 25 years.

　　While SECI and some other states had also tried renewable energy plus storage tenders earlier, none had achieved any substantial success. Previous large-scale tenders issued by Solar Energy Corporation of India did not see financing bids after the tenders were not fully subscribed or possible financing bids were too high to make them attractive to distribution companies.

　　At that time, Solar Power Corporation of India offered tenders for energy storage projects totaling 300 MW at two solar power plants. But it was eventually canceled due to lack of financing tenders.

　　The Indian government appears to have learned from its mistakes this time around and is now expanding the range of energy storage technologies available to project developers. This new tender allows project developers to use any energy storage technology, including batteries, pumped hydro, mechanical and chemical systems, or a combination of storage systems.

　　Two months ago, the Ministry of New and Renewable Energy asked project developers to submit proposals for gravity storage projects. Project developers may consider pumped hydro or mechanical energy storage technologies to keep operating costs low.

　　Indian company Greenko Energy Holdings is developing two pumped hydro projects in Karnataka and Andhra Pradesh. Each project should install 2 gigawatts of wind and 2 gigawatts of solar capacity.

　　A key clause that SECI has included in this tender for the first time is about the allocation of capacity based on the energy rates offered by developers during peak hours. Developers should provide a fixed price of Rs 2.70/kWh during off-peak hours, i.e. between 9 am to 6 pm and midnight to 6 am; during peak hours of 6 pm to midnight and 6 am to 9 pm Periods provide 300 MWh of electricity for every 100 MW of capacity.

　　Developers should start project construction within 18 months from the date of signing the power purchase agreement, and complete construction and put into production within a maximum of 24 months. In some cases, developers will not be penalized due to problems with transmission infrastructure that prevent them from putting into production in accordance with the above regulations.

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