POWERGRID Issues Tender For 250 MW / 500 MWh Standalone BESS Project In Kerala Under TBCB Framework

Power Grid Corporation of India Limited has issued a major tender on behalf of Kerala State Electricity Board Limited (KSEBL) for the development of a large-scale Battery Energy Storage System (BESS) project in Kerala. The tender, referenced as CC/T/W-MISC/DOM/A01/25/16371 and titled BESS-01 (KSEBL), relates to the setting up of a 250 MW / 500 MWh State Transmission Utility (STU) connected standalone Battery Energy Storage System in the state. The project will be implemented under the Tariff-Based Global Competitive Bidding (TBCB) framework and is aimed at strengthening grid stability and supporting renewable energy integration in Kerala.

The scope of work under this package includes the complete Battery Energy Storage System for the 250 MW, 500 MWh capacity, covering design, engineering, supply, installation, testing, and commissioning, along with associated works as defined in the tender documents. The project location is Kerala, and it falls under the power and energy sector, with the tender categorized as an open works contract.

The tender has been published on the PRANIT Portal of POWERGRID, accessible through the e-tender platform, with the RFX Number 5002004952. The tender publication date is Friday, 12 December 2025 at 04:50 PM. The sale of tender documents started on the same date and time and will remain open until Wednesday, 17 December 2025, at 11:55 PM.

Bid submission for the soft copy also commenced on Friday, 12 December 2025, at 04:50 PM. The last date and time for submission of soft copy bids is Friday, 19 December 2025, at 11:00 AM. The bids are scheduled to be opened on the same day, Friday, 19 December 2025, at 11:30 AM. No dates have been specified for hard copy bid submission in the available details.

The tender fee for participating bidders is set at ₹25,000. As per the tender information provided, the Earnest Money Deposit (EMD) amount is ₹0, indicating that no EMD is required for this tender. The tender value has been indicated as ₹0, which typically implies that the financial details will be determined through the competitive bidding process. The Performance Bank Guarantee (PBG) amount has not been explicitly mentioned in the provided tender summary and is expected to be detailed in the official bidding documents.

The tender is being invited by Kapil Mandil, Deputy General Manager, POWERGRID, whose office is located at Power Grid Corporation of India Limited, Sector-29, Gurgaon. This BESS tender marks an important step for Kerala in deploying large-scale energy storage infrastructure to support grid reliability, peak demand management, and the growing share of renewable energy in the state’s power mix.