NTPC Renewable Energy Limited (NTPC REL), a wholly owned subsidiary of NTPC Green Energy Limited, has invited bids for the development of a large-scale Battery Energy Storage System (BESS) at its Devikot Solar Plant in Rajasthan. The company has issued an Invitation for Bids (IFB) for the Engineering, Procurement, and Construction (EPC) package of a 240 MW / 960 MWh Inter-State Transmission System (ISTS)-connected BESS project.
The proposed project is aimed at strengthening energy storage infrastructure and supporting the integration of renewable energy into the grid. The storage facility will be developed at the existing Devikot Solar Plant and will play an important role in enhancing grid stability and improving the utilization of solar power generated at the site.
According to the tender document, the selected developer will be responsible for the complete design, engineering, procurement, supply, transportation, installation, testing, and commissioning of the battery energy storage system. The project will be executed on a turnkey basis, meaning the contractor will deliver a fully operational facility. The scope of work also includes the integration of the BESS with the existing solar plant infrastructure as well as the transmission network.
NTPC REL has specified a design life of 25 years for the battery storage system, reflecting the company’s long-term commitment to clean energy infrastructure. In addition to project execution, the successful bidder will be required to undertake operation and maintenance (O&M) services for a period of 15 years. The contract also includes provisions related to performance guarantees, system augmentation requirements, and insurance coverage throughout the operational period.
The project will be financed through NTPC REL’s internal resources and borrowings. The company will adopt a single-stage, two-envelope bidding process for selecting the developer. Under this process, bidders will submit separate techno-commercial and price bids. Following the evaluation of bids, a reverse auction will be conducted to determine the final successful bidder.
The bidding process officially commenced with the issuance of the IFB on June 16, 2026. Interested companies can download the bidding documents from June 16 to June 26, 2026, until 8:00 PM IST. A pre-bid conference and the deadline for submission of queries have been scheduled for June 29, 2026.
The last date for submission of both techno-commercial and price bids is July 13, 2026, by 3:00 PM IST. The techno-commercial bids will be opened on the same day at 3:30 PM IST.
To participate in the tender, bidders must submit an Earnest Money Deposit (EMD) or Bid Security of INR 20 crore. The security deposit can be submitted through a separate sealed envelope or via an approved electronic fund transfer. Any bid submitted without the required EMD will be rejected.
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