NTPC Green Energy Limited (NGEL), a subsidiary of NTPC Limited, has issued an Invitation for Bids (IFB) on behalf of NTPC UP Green Energy Limited (NUGEL) for the development of a 50 MW/200 MWh Battery Energy Storage System (BESS) at Jhansi in Uttar Pradesh. The project aims to strengthen grid-scale energy storage infrastructure and support the integration of renewable energy into the power system.
The tender has been floated under a domestic competitive bidding process based on a Single Stage Two Envelope system, which includes Techno-Commercial and Price Bids, followed by a Reverse Auction. The selected contractor will be responsible for the complete Engineering, Procurement, and Construction (EPC) of the project on a turnkey basis.
According to the tender document, the contractor will handle the design, engineering, supply, transportation, installation, testing, and commissioning of the grid-connected BESS. The scope of work also includes the integration of the battery storage system with the solar plant infrastructure at the 33 kV pooling switchgear, which is being developed under a separate package. The contractor must ensure that all project requirements are fulfilled up to the Point of Interconnection (POI) with the Uttar Pradesh Power Transmission Corporation Limited (UPPTCL) grid.
The project includes strict technical and performance requirements. The BESS must have an operational life of 25 years and support daily single-cycle operations. The batteries should be capable of completing at least 10,000 charge-discharge cycles. The system must achieve a minimum monthly Round Trip Efficiency (RTE) of 80%, including auxiliary consumption, and maintain a monthly availability of 98%.
In addition, the contractor must guarantee a minimum dispatchable capacity of 92% at the POI over a 15-year period. The system should provide 100% capacity at the Commercial Operation Date (CoD) and maintain 95% during the first year. To account for transformer and transmission losses, the minimum installed nameplate capacity has been set at 220 MWh to ensure a deliverable capacity of 200 MWh. Any future capacity augmentation required to maintain performance standards will be the responsibility of the selected bidder.
The contract also includes a 15-year Operations and Maintenance (O&M) period covering warranties, annual maintenance services under a Service Level Agreement (SLA), and project insurance. The contractor will also be responsible for any Deviation Settlement Mechanism (DSM) charges related to the operation of the BESS plant.
The sale of bidding documents will begin on June 18, 2026, and close on June 29, 2026. The last date for online bid submission is July 10, 2026, with technical bids scheduled to be opened on the same day.
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