India's long-duration energy storage market has reached a new milestone. Delectrik Systems Pvt. Ltd. has announced that it will deploy the country's first utility-scale vanadium redox flow battery (VRFB) project, with a capacity of 100 MWh. The project is being developed for a wholly-owned subsidiary of NTPC Limited, one of India's largest power producers.
A partnership approach
Delectrik won the tender in partnership with infrastructure solutions provider Bondada Engineering Limited. The pairing combines Delectrik's flow battery technology with Bondada's engineering, procurement and construction experience. The announcement was issued through PR Newswire on July 21, 2026, and syndicated in multiple languages.
The project is being developed for a wholly-owned subsidiary of NTPC Limited, according to Delectrik's translated release.
Why 100 MWh matters
At 100 MWh, the project moves VRFB technology beyond small demonstrations and into utility-scale territory. Flow batteries store energy in liquid electrolytes held in external tanks, allowing power and energy capacity to be scaled separately. That architecture makes them suited to longer-duration applications where safety and cycle life matter.
The NTPC project is not Delectrik's only large flow battery win this year. The company also confirmed a 20 MW/120 MWh VRFB system for GIPCL, a six-hour system that represented its second hundred-megawatt-hour-scale project in 2026. Bondada announced it had received a letter of intent for the GIPCL project's EPC and O&M contract, valued at about INR 2.39 billion, or roughly INR 1.40/Wh.
What comes next
The NTPC-linked project gives India a flagship reference for vanadium flow technology. For NTPC, it offers a way to test long-duration storage on the grid as renewable penetration rises. For Delectrik, it provides a utility-scale platform that could support future tenders.
Details on the project's location, schedule and commercial operation date have not been disclosed in the announcement. Even so, the combination of a state-owned utility, a 100 MWh capacity and a domestic flow battery supplier signals that India is beginning to treat LDES as part of its procurement mainstream.
This article was assisted by AI analysis. Please refer to the original source for official information.