India Advances Long-Duration Energy Storage with 100 MWh Vanadium Flow Battery
Date: 21 Sep 2026 |
21 September 2026 — India is advancing long-duration energy storage with its first utility-scale 100 MWh vanadium flow battery (VFB) project at Khavda Solar Park in Gujarat, one of the world’s largest renewable energy developments.
The project was awarded by NTPC Renewable Energy Limited (NTPC REL) to Bondada Engineering, working in partnership with technology provider Delectrik Systems. The 16.7 MW / 100 MWh system will provide approximately 5.9 hours of energy storage, with commissioning expected in the second half of 2027. The contract also includes 10 years of operations and maintenance.
The project marks a significant milestone as India’s first grid-scale non-lithium battery energy storage system and its first vanadium flow battery deployment at this scale. Delectrik previously deployed a 3 MWh VFB demonstration project for NTPC at Greater Noida.
Why Vanadium Flow Batteries?
VRFBs store energy in vanadium electrolyte contained in external tanks, while electrochemical cell stacks generate the electrical power. This architecture allows power and energy capacity to be scaled independently—the stack determines power, while the volume of electrolyte determines storage duration.
Vanadium flow batteries are particularly suited to long-duration stationary storage because of their long operational life, minimal capacity degradation over repeated cycling and high intrinsic safety. The Khavda project is designed for a service life exceeding 25 years.
The project will also strengthen India's domestic energy-storage supply chain. Delectrik plans to manufacture the vanadium electrolyte in Gujarat and cell stacks in Gurugram, supporting domestic production of key components and reducing reliance on imported battery technologies.
With 100 MWh of capacity and nearly six hours of discharge, the Khavda project demonstrates the growing role that vanadium flow batteries can play in integrating large-scale solar and wind generation while improving grid flexibility and resilience.
Sources: Energies Media, 20 September 2026.