The Solar Energy Corporation of India Limited (SECI) has issued a tender for the development of a grid-connected solar power project integrated with a Battery Energy Storage System (BESS) in Andhra Pradesh. The project, identified by Tender Reference Number SECI/C&P/OP/11/0002/26-27, is designed to supply power under an already executed power purchase agreement (PPA).
The installation consists of 70 MW (AC) / 91 MW (DC) ground-mounted Solar PV capacity and a 25 MW / 50 MWh BESS. The project is situated at Ramagiri and Muthukavuntla in the Sri Sathya Sai District and is designated as Package-1 of a 50 MW Firm and Dispatchable Renewable Energy (FDRE) initiative. The configuration, which includes a DC/AC over-provisioning ratio, is engineered to meet the specific “Firm and Dispatchable” mandate of the 50 MW FDRE framework. Package-2, consisting of 45.6 MW of wind capacity, is being tendered separately.
The procurement is structured as a Balance of System (BoS) EPC contract. The selected contractor will be responsible for the design, engineering, construction, erection, testing, and commissioning of the facility. The technical scope specifically includes the construction of a 220 kV pooling substation and associated transmission infrastructure to facilitate Inter-State Transmission System (ISTS) connectivity. Solar PV modules will be owner-supplied. Following commissioning, the contractor must provide five years of comprehensive Operation and Maintenance (O&M) services.
Regulatory compliance requirements include adherence to “Class-I local supplier” rules for solar inverters, necessitating a minimum of 50% local content. Bidders must also comply with Ministry of Finance Department of Expenditure orders regarding entities from countries sharing a land border with India.
The tender was published on June 24, 2026. A pre-bid meeting is scheduled for July 6, 2026, with the bid submission deadline fixed for July 24, 2026.
Technical Specifications
- Solar Capacity: 70 MW AC / 91 MW DC
- BESS Capacity: 25 MW / 50 MWh
- System requirement: Capability to supply 25 MW of power for a continuous duration of two hours.
- Connection Type: Inter-State Transmission System (ISTS) via a 220 kV pooling substation.
Project Location and Framework
- Sites: Ramagiri and Muthukavuntla
- District: Sri Sathya Sai District, Andhra Pradesh
- Framework: Designated as Package-1 within the 50 MW Firm and Dispatchable Renewable Energy (FDRE) project structure.
EPC and O&M Scope
- Turnkey Responsibilities:
- Balance of System (BoS) duties: Design, engineering, and construction of the plant and transmission infrastructure.
- Module Management: Receiving, unloading, storage, and installation of owner-supplied PV modules.
- Module Timing: Owner-supplied modules are scheduled for delivery at the project site between six and eleven months from the date of contract award.
- Operational Commitment: 5-year comprehensive O&M services.
- Exclusions: Procurement of solar PV modules is excluded from the contractor’s scope.
Key Deadlines
- Tender Release: June 24, 2026
- Pre-bid Meeting: July 6, 2026
- Bid Submission Deadline: July 24, 2026
Bidding Requirements
- Earnest Money Deposit (EMD): INR 3.81 crore
- Tender Processing Fee: INR 25,000
- Local Content: Minimum 50% local content required for inverters (Class-I local supplier).
- Bidding Format: Single Stage Two Envelope system followed by an e-Reverse Auction.
- TENDER PORTAL: https://www.seci.co.in/tender-details/YmR1
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