SECI Floats BoS Tender For 70 MW Solar PV And 25 MW/50 MWh BESS Project In Andhra Pradesh

SECI has issued a Balance of System (BoS) tender for the development of a large solar and energy storage project in Andhra Pradesh. The tender was released on June 24, 2026, under Tender Number SECI/C&P/OP/11/0002/26-27. The project involves the establishment of a grid-connected 70 MW (AC) / 91 MW (DC) Solar PV Power Project along with a 25 MW / 50 MWh Battery Energy Storage System (BESS).

The project will be developed at Ramagiri in the Sri Sathya Sai District of Andhra Pradesh. It forms Package-1 of a larger 50 MW Firm and Dispatchable Renewable Energy (FDRE) hybrid project aimed at improving renewable energy generation and supporting clean energy goals in the region.

Under the tender, the selected contractor will be responsible for the complete Balance of System scope on a turnkey basis. The work includes design, engineering, procurement, supply, installation, testing, commissioning, and performance demonstration of the solar power plant and battery storage system. However, the solar PV modules will be supplied separately by the project owner and are not included in the contractor’s procurement scope.

The contractor will also manage module handling activities such as receiving, unloading, storage, inspections, packing, and transportation. In addition, civil works, statutory approvals, insurance coverage, erection activities, and testing procedures are part of the contract requirements. After successful commissioning, the selected bidder must provide comprehensive operation and maintenance services for a period of five years.

The bidding process will be conducted online through the ISN-ETS portal using a Single Stage Two Envelope system, followed by an e-Reverse Auction. Participation is restricted to Indian companies under domestic competitive bidding guidelines. The tender also requires the use of Class-I local suppliers for solar inverters, ensuring a minimum local content requirement of 50%. Bidders must also comply with applicable government regulations concerning entities from countries sharing land borders with India.

The tender processing fee has been fixed at INR 25,000 plus applicable GST, with exemptions available for eligible Micro and Small Enterprises (MSEs). An Earnest Money Deposit (EMD) of INR 3.81 crore must be submitted through approved financial instruments such as a bank guarantee, insurance surety bond, or electronic fund transfer.

The successful bidder will also be required to furnish a Performance Bank Guarantee as specified in the tender’s Special Conditions of Contract. Bid submissions will follow the schedule mentioned in the Notice Inviting Tender published on the ISN-ETS portal. Certain compliance documents must also be submitted physically to SECI’s New Delhi office within two working days of the online bid submission deadline.

SECI has stated that the final contract value may be adjusted based on the actual efficiency and specifications of the solar modules supplied during project execution, with a maximum variation limit of 10%. To ensure transparency and accountability, Independent External Monitors have been appointed under an Integrity Pact framework for the project.