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