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NTPC Renewable Energy Limited awarded the contract for India's first utility-scale 100 MWh Vanadium Redox Flow Battery (VRFB) energy storage system, to be built at Khavda Solar Park, Gujarat.
Bondada Engineering secured the EPC package; Delectrik Systems is the technology partner, with deployment scheduled for 2027 and 10 years of O&M.
It is India's first non-lithium, utility-scale battery storage system that is 100% domestically designed, engineered and manufactured.
Khavda Solar Park is planned to become the world's largest renewable energy park, with 30 GW capacity targeted by 2029.
A rechargeable battery that stores energy in liquid electrolyte solutions containing vanadium ions in different oxidation states, held in external tanks. Energy capacity (tank size) and power output (cell stack) can be scaled independently, and using the same element on both sides reduces cross-contamination degradation.
Simple Analogy: Like a fuel tank (capacity) separate from an engine (power) — you can enlarge one without changing the other, unlike a lithium-ion battery where capacity and power are bundled together.
| Feature | Vanadium Redox Flow Battery | Lithium-ion Battery |
|---|---|---|
| Energy/power scaling | Independent (tank size vs stack size) | Bundled together |
| Fire risk | Low (aqueous electrolyte) | Higher (thermal runaway risk) |
| Typical use here | Long-duration utility-scale grid storage | Shorter-duration, widely used today |
GS Paper III - Science & Technology / Infrastructure (Energy)
Vanadium Redox Flow Battery — a flow-battery technology using vanadium electrolytes for grid-scale energy storage
Battery Energy Storage System — used to store electricity from renewable sources for later use