Battery Energy Storage: The Missing Link for Firm Renewables

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.

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.

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.