Power Grid Corporation of India Limited (POWERGRID) has invited bids for the development of a large-scale standalone Battery Energy Storage System (BESS) at the Maheswaram Substation in Telangana, marking a significant step towards strengthening grid stability and supporting the integration of renewable energy in the region.
The tender, issued under “Package Telangana-BESS 01,” involves the installation of a 187.5 MW / 750 MWh battery energy storage system with a four-hour discharge duration. The project forms part of POWERGRID’s broader initiative to establish 1,500 MWh of energy storage capacity on vacant land owned by Telangana State Transmission Corporation Limited (TSTRANSCO).
The proposed BESS facility will play a crucial role in balancing intermittent renewable generation, particularly from solar and wind sources, by storing surplus electricity during periods of high generation and supplying power during peak demand hours. This is expected to enhance grid reliability, reduce congestion, and improve overall power system resilience in southern India.
The project is being implemented through a Tariff-Based Global Competitive Bidding (TBCB) mechanism, enabling transparent tariff discovery and cost-efficient project execution. The contract falls under the ‘Works’ category and is open to eligible developers across the country.
According to the tender schedule, the notice was issued on January 14, 2026, with the sale of tender documents closing on January 19, 2026. Interested bidders are required to submit their bids electronically by January 21, 2026, at 11:00 AM, with bid opening scheduled for the same day at 11:30 AM.
The tender carries a non-refundable fee of ₹25,000, while the project value has been indicated as zero, reflecting that the final tariff and project cost will be determined through competitive bidding. The tender also specifies zero Earnest Money Deposit (EMD), although bidders are advised to carefully review the detailed tender terms and pre-qualification criteria available on the PRANIT portal.
POWERGRID said the Telangana BESS project underscores its increasing focus on energy storage as a critical enabler of India’s clean energy transition, supporting higher renewable penetration, grid modernization, and long-term energy security.
