In Short : At Kolimigundla in the Nandyal district of Andhra Pradesh, the Solar Energy Corporation of India (SECI) has set a pre-bid meeting for the Balance-of-System (BoS) tender of the forthcoming 600 MW / 1,200 MWh standalone battery energy storage system (BESS). To inform potential bidders of important tender details, a hybrid in-person and online conference is scheduled for August 28, 2025.
Extent and Timeline of Operations
Turnkey civil works delivery, equipment procurement, installation, testing, commissioning, and performance demonstration are all required under the BoS tender. For this massive energy storage project, the chosen contractor will also manage operation and maintenance for five years, guaranteeing reliable grid operation and strong integration of renewable energy.
Important Financials and Portal Guidelines
In addition to an Earnest Money Deposit (EMD) of ₹86,600 per MW, interested bidders must also provide a non-refundable processing charge of ₹25,000 plus GST. Beginning in mid-August, bidders will receive invitations to participate in meetings, and all upcoming announcements, clarifications, and paperwork will only be accessible through the official SECI and Bharat Electronic Tendering portal.
Wider Consequences for India’s Energy Storage Strategy
India’s increasing reliance on utility-scale battery systems to improve grid flexibility and encourage the growth of renewable energy is best illustrated by the Nandyal BESS project. It aims to establish a standard for future energy transition deployments as part of a larger plan to implement gigawatt-scale BESS infrastructure under viability gap funding.
