Battery Energy Storage: The Missing Link for Firm Renewables
Falling cell prices and storage-linked tenders are making grid-scale batteries the enabler of round-the-clock clean power.
Market Size
~$3–4 Bn (India BESS, FY26E)
Growth
~30% CAGR (FY26–30E)
Read
7 min
Updated
Apr 2026
Overview
Battery energy storage systems (BESS) address the core intermittency problem of solar and wind by shifting generation to peak-demand hours. India is procuring storage through standalone and renewable-linked tenders, aided by viability-gap funding and falling global lithium-ion cell prices. Both grid-scale and behind-the-meter applications are scaling.
The domestic value chain is still largely import-dependent for cells, though PLI for advanced chemistry cells (ACC) aims to localise gigafactory capacity over time. Developers increasingly bundle storage with solar to win RTC and firm-power contracts. Ancillary services and frequency regulation add incremental revenue streams.
Economics are improving as cell costs fall, but project returns remain sensitive to cell price cycles, cycle-life degradation and the structure of capacity contracts. Domestic cell manufacturing at scale would materially strengthen the investment case.
Illustrative projection from the report's stated market size (~$3–4 Bn (India BESS, FY26E)) and growth (~30% CAGR (FY26–30E)).
Key Highlights
- Storage-linked and standalone BESS tenders scaling
- PLI-ACC targeting domestic gigafactory capacity
- RTC and firm-power contracts driving demand
- Ancillary-services revenue as an added layer
Growth Drivers
- Falling lithium-ion cell prices globally
- Renewable firming and grid-stability requirements
- PLI for advanced chemistry cell manufacturing
- Peak-shaving and time-of-day tariff arbitrage
Key Players
Investment Outlook
Storage is set to be one of the fastest-growing energy segments as renewables firm up, but returns depend on cell-price trajectories and contract design. We favour players with domestic cell ambitions and integrated developer relationships.
Key Risks
- Import dependence on lithium-ion cells and raw materials
- Cell price and chemistry-technology volatility
- Battery degradation and warranty/performance risk
The Neoma View
We regard storage as the indispensable complement to renewables; our preference is for integrated developer-storage models with a credible path to domestic cell supply.
Talk to an advisor →All figures are indicative and for information only - not investment advice or a recommendation. Market sizes, growth rates and financial metrics are hedged estimates that vary by source and period. Please consult your advisor before investing.
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