NTPC Invites Bids for BESS Projects Across Nine Thermal Stations
NTPC has invited bids for EPC of 2.67 GWh Battery Energy Storage Systems across nine thermal stations to enhance grid flexibility and support renewable energy integration under its national BESS programme.
November 12, 2025. By EI News Network
The tender aims to establish a total cumulative storage capacity of 2.67 GWh (2,670 MWh), integrating advanced storage solutions with NTPC’s existing coal-based power infrastructure to enhance grid stability and flexibility.
The tender covers BESS deployment at the following NTPC stations viz. Barauni (1000 MWh), Gadarwara (320 MWh), NTECL-Vallur (300 MWh), Khargone (250 MWh), Dadri-II (200 MWh), Tanda-II (200 MWh), Bongaigaon (150 MWh), Solapur (150 MWh), and Unchahar (100 MWh). The initiative will help NTPC in integrating renewable energy with thermal assets and managing peak load demands more efficiently.
The project scope includes the design, engineering, supply, installation, and commissioning of the BESS along with a comprehensive annual maintenance contract covering the full design life of the system. Each installation will comprise advanced battery systems, battery management systems (BMS), energy management systems (EMS), SCADA integration, power conversion systems, inverter duty transformers, and associated electrical and control infrastructure.
Bidders are required to submit their proposals on a Single Stage, Two Envelope basis (Techno-Commercial and Price Bids) through NTPC’s e-tendering portal. The bidding documents will be available for download starting November 13, 2025, with the pre-bid conference scheduled for November 20, 2025, and the bid submission deadline set for December 5, 2025.
Only Class-I and Class-II local suppliers are eligible to participate under the Government of India’s Make in India framework. Depending on the project capacity of interest, the bid security amount ranges from INR 2 crore (for up to 100 MWh) to INR 50 crore (for 1,751–2,670 MWh).
To qualify, bidders must demonstrate prior experience in manufacturing, supplying, or commissioning at least 20 MWh of grid-interactive BESS, or in developing solar or wind power plants of 40 MWAC or higher capacity. Alternatively, companies with large-scale industrial EPC experience valued at INR 375 crore or more in sectors such as power, steel, oil and gas, or cement are also eligible, provided they meet specified substation and financial criteria.
Financially, the average annual turnover requirement for bidders varies per project, from INR 115 crore for Unchahar to INR 964 crore for Barauni, with net worth criteria requiring at least 100 percent of the bidder’s paid-up share capital.
The initiative is part of NTPC’s broader strategy to integrate 20 GWh of energy storage capacity across its portfolio by 2030, aligning with India’s goal of achieving 500 GW of non-fossil-based power capacity. The projects will play a crucial role in balancing renewable energy generation and optimizing thermal power plant operations through hybridization and flexible energy dispatch.
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