Gujarat Urja Vikas Nigam Limited (GUVNL) has floated a major tender to procure 335 MW / 670 MWh standalone Battery Energy Storage Systems (BESS) statewide, under a Build-Own-Operate (BOO) model. The initiative supports grid stability, renewable integration, and peak demand management. Eligible projects will receive Viability Gap Funding (VGF) at ₹18 lakh per MWh under the Power System Development Fund (PSDF) scheme.
Tender Overview
- Authority: Gujarat Urja Vikas Nigam Limited (GUVNL)
- Project Type: Standalone Battery Energy Storage System (BESS)
- Total Capacity: 335 MW / 670 MWh
- Model: Build-Own-Operate (BOO)
- Connection: Intra-State Transmission System (InSTS) at 20 identified substations across Gujarat
- VGF Support: ₹18 lakh per MWh under PSDF Phase-VIII
- Tender Type: Tariff-based Competitive Bidding with VGF
- Phase: Phase-VIII BESS tender
2. Technical & Operational Requirements
Project Configuration
- Minimum Bid Size: 130 MWh (equivalent to 65 MW × 2 hours).
- Total BESS Capacity: Up to 670 MWh per project site configuration.
Performance Standards
- Operational Cycles: System must support two complete charge–discharge cycles per day.
- System Availability: Minimum 95 % availability annually guaranteed by the developer.
- Discharge Capability: When fully charged, capable of discharging rated capacity during any 15-minute time block as scheduled by the State Load Dispatch Centre (SLDC).
- Modular Dispatch: Must permit charging/discharging in groups from 50 MW/100 MWh up to 100 MW/200 MWh increments.
3. Technology & Compliance Conditions
Allowed Technology
- Technology–Agnostic Batteries: Bidders may propose any battery chemistry/technology that meets performance specs.
- Quality Compliance: Must adhere to industrial quality, safety, and reliability norms.
- Local Content: Minimum 20 % domestic content, inclusive of at least an indigenously developed Energy Management System (EMS) software.
- Integration Responsibility: BESSD must ensure the facility is connected to the state grid at designated transmission points.
4. Bid Financials & Guarantees
Fees & Deposits
- Tender Document Fee: ₹29,500 (inclusive of GST).
- Document Processing Fee: ₹15 lakh + GST.
- Earnest Money Deposit (EMD): ₹5 lakh per MW quoted.
- Performance Bank Guarantee (PBG): ₹12.50 lakh per MW (must be furnished before signing Battery Energy Storage Purchase Agreement – BESPA).
5. Contract & Operational Terms
Charging & Discharging
- Power Supply for Charging: Provided by GUVNL.
- Auxiliary Power: Option to draw from the point of interconnection or through a separate metered connection.
- Dispatch Control: Charging/discharging scheduled by SLDC based on grid requirements.
Service Duration
- BESS must be available daily for operational cycles, with guaranteed system reliability & uptime as per contract terms.
6. Bid Submission Details
Key Dates
- Online Bid Submission Deadline: 22 January 2026.
- Offline Bid Submission Deadline: 27 January 2026.
- Techno-Commercial Bid Opening: 28 January 2026.
Evaluation Process
Bids will typically be evaluated on techno-commercial parameters and quoted prices, with VGF support factored into financial assessments.
| Capacity | 335 MW / 670 MWh |
| Location | Gujarat |
| Last Date | 22/01/2026 |
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