Power Grid Corporation of India Limited has issued a tender for the Battery Energy Storage System Package BESS-03, which is part of a larger plan to set up 375 MW/1500 MWh of standalone battery energy storage systems across Tamil Nadu. The tender has been released under tariff-based competitive bidding and covers seven projects with a combined capacity of 100 MW/400 MWh under this specific package. The project includes complete 1.5 cycle charging and discharging capability, highlighting the focus on grid-scale storage to support power system reliability and flexibility in the state.
The tender scope of work falls under the power and energy sector and is classified as a works contract. The tender type is open, allowing eligible bidders from across India to participate. The location of work is Tamil Nadu, and the project is applicable to all states in terms of bidder eligibility.
According to the tender details, the publication date of the tender is Friday, 23 January 2026, at 7:48 PM. The sale of tender documents also started on the same date and time. Interested bidders can purchase and download the tender documents until Wednesday, 28 January 2026, up to 11:55 PM. The bid submission for soft copies opened on Friday, 23 January 2026, at 7:48 PM, and the last date for submission of bids is Friday, 30 January 2026, at 11:00 AM. The bids are scheduled to be opened on the same day, Friday, 30 January 2026, at 11:30 AM.
The tender fee for participating in this bid is ₹25,000. As per the published tender information, the Earnest Money Deposit (EMD) amount for this tender is ₹0, which reduces the upfront financial burden on bidders and may encourage wider participation. The tender value has not been disclosed and is indicated as zero in the notice, which is common for tariff-based competitive bidding projects where final values are determined through the bidding process. The Performance Bank Guarantee (PBG) amount has not been specified in the tender summary and is expected to be defined in detail within the tender documents, as per Power Grid’s standard contractual terms and conditions.
The tender is being invited by Ms. Vakati Silpa, Chief Manager, Power Grid Corporation of India Limited. The official address for the tendering authority is Saudamini, 3rd Floor, Plot No. 2, Sector 29, Gurgaon, Haryana – 122001. Overall, this tender marks an important step in expanding large-scale battery energy storage infrastructure in Tamil Nadu, supporting renewable energy integration and strengthening grid stability through advanced storage solutions.
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