The Gujarat Industries Power Company (GIPCL) has invited bids to design, engineer, supply, erect, test, and develop a 20 MW/120 MWh battery energy storage system at its 165 MW gas power plant complex in Vadodara.

The vanadium redox flow battery technology-based system will be connected at the point of injection, the 132 kV GIPCL substation.

The scope includes associated electrical, mechanical, and civil systems, as well as the revitalization or modification of existing switchyard infrastructure, high-tension transformers, communication systems, and metering systems.

The successful bidder will also be responsible for the project’s operation and maintenance for 10 years.

The last date to submit bids online is June 25, 2026.

Bidders must submit ₹11 million (~$115,390) as the earnest money deposit.

The successful bidder must furnish a performance bank guarantee equivalent to 10% of the contract value within 30 days of the issuance of the letter of intent.

Bidders must fulfill at least one of the following criteria:

• Bidders must have designed, manufactured, erected, and commissioned Vanadium Redox Flow Battery systems with a cumulative capacity of 5 MWh in the last 10 years, with one reference project of at least 0.4 MWh in successful operation for at least 6 months before bid opening.
• They must have commissioned grid-connected solar/wind projects with a cumulative capacity of at least 40 MW, including at least one project with a capacity of at least 10 MW and operational for at least 6 months. They must also associate with a qualified VRFB manufacturer meeting the direct vanadium redox flow battery technology experience requirement through a jointly executed undertaking.
• They should have executed an industrial project of at least ₹2 billion (~$20.98 million) under a single contract in the last 10 years and at least one 132 kV or higher electrical substation that has been operational for at least a year. They must also associate with a qualified vanadium redox flow battery

Bidders should have a minimum average annual turnover of ₹2 billion (~$20.98 million), calculated as the average of the audited financial statements of the last three financial years.

The net worth of bidders during the last financial year should be positive.

As part of the approved operational framework, the battery storage system will be operated at approximately 1.5 cycles per day, with an indicative charging and discharging schedule as follows:

• Charging Period: 01:00 to 05:00 hrs and 09:00 to 16:00 hrs (approximately 11 hours)
• Discharging Period: 06:00 to 09:00 hrs and 18:00 to 24:00 hrs (approximately 9 hours)

The schedule may be finalized or modified in coordination with Gujarat Urja Vikas Nigam based on grid requirements and operational considerations.

Last November, GIPCL commissioned 150 MW of capacity as part of the fourth phase of its 600 MW solar project at the 2,375 MW Renewable Energy Park in Khavda, Gujarat.

Earlier, GIPCL commissioned 315 MW of its 600 MW solar power project at Khavda, Gujarat.