Commentary: Storage, The Next Frontier in India’s Renewable Surge
India’s clean-energy ambitions continue accelerating at an unprecedented pace. Recent government data indicates the country added 31.2 GW of non-fossil capacity this financial year, bringing total non-fossil capacity to approximately 259 GW. This marks India’s highest annual increase to date and underscores how rapidly renewable power is becoming central to the national energy landscape.
But as the share of solar and wind expands, the conversation is shifting from how much renewable capacity India can build to how reliably it can be used. Here, energy storage becomes indispensable.
Why Storage Matters — Especially Now
Solar and wind power are inherently variable. Peak generation may not coincide with peak demand, and periods of low sunlight or wind can strain the grid. Without storage, surplus energy risks being curtailed or lost, while periods of deficit require fossil-based balancing.
Storage provides the flexibility needed to ensure that renewable energy remains usable, stable, and dispatchable. It helps integrate rising renewable capacity — such as the recently added 31.2 GW — into the grid efficiently and reliably.
Policy Signals: Renewables + Storage = The Norm
Government statements and planning frameworks now view storage as integral to future grid stability. The transmission system plan up to 2032 includes ~47.2 GW of Battery Energy Storage Systems (BESS), and procurers are increasingly preferring renewable projects that incorporate storage rather than standalone solar or wind.
This shift signals that India is moving toward a more mature clean-energy ecosystem where renewables and storage are planned together.
India Needs a Portfolio Approach to Storage
While lithium-ion batteries remain widespread due to high energy density and falling costs, they are not universally suitable. Degradation, safety considerations, and limited multi-hour duration highlight the need for alternative options.
India’s diverse energy landscape — urban grids, industrial parks, agricultural loads, remote villages — requires a mix of storage technologies, including:
- Short-duration, fast-response batteries
- Long-duration solutions such as flow batteries and pumped hydro
- Thermal and mechanical storage for utility-scale shifting
- Emerging technologies like sodium-ion or zinc-air with strong cost and resource advantages
A portfolio approach enhances resilience, reduces supply-chain exposure, and ensures cost-effective deployment across varied use cases.
What the Capacity Surge Reveals — and the Opportunities Ahead
The record addition of clean-energy capacity demonstrates strong momentum, but it also highlights a timely opportunity:
As India electrifies more sectors — transport, manufacturing, rural economies — the demand for reliable, round-the-clock clean energy will intensify. Strengthening storage deployment, manufacturing, and innovation becomes a strategic imperative.
A Balanced, Future-Ready Grid
To unlock the full value of its renewable surge, India can focus on:
- Tendering more storage-integrated renewable projects
- Diversifying storage technologies based on use-case needs
- Creating long-term storage markets and incentives
- Localising storage manufacturing and recycling
- Supporting R&D for advanced materials and long-duration systems
These initiatives can help ensure that India’s clean-energy expansion translates into dependable, affordable, and sustainable power for decades to come.
Building Storage Capacity Through Collaboration
As India steps into this next phase of its clean-energy transition, the need for safe, long-duration, and scalable storage technologies becomes increasingly clear. Companies like VFlowTech, which specialise in long-duration flow battery systems and electrolyte circularity, represent one of the many emerging capabilities India can leverage to strengthen its storage ecosystem.
To support India’s renewable ambitions, industry, policymakers, utilities, and technology providers must work together to pilot, evaluate, and integrate diverse storage solutions — including long-duration technologies — into grid planning and procurement. This collaborative approach will help ensure that India’s clean-energy momentum is matched by the reliability and resilience needed for sustainable growth.
Generation is scaling. Now storage must, too.
To understand more about VFlowTech’s impact and solutions, download our case studies here: https://vflowtech.com/case-studies/
