India needs to build 888 GWh of energy storage capacity by 2036 to support its growing renewable energy mix. With only 7.5 GWh currently operational, this massive infrastructure requirement highlights a significant growth area for the power sector, though investors should monitor risks like project costs, supply chain dependency, and execution timelines.
The Central Electricity Authority (CEA) has outlined an ambitious roadmap for India's power grid, mandating 888 gigawatt-hours (GWh) of energy storage capacity by 2035-36. As India accelerates its transition toward non-fossil fuel sources, which are expected to make up 70 percent of the total installed capacity, the stability of the power grid has become a primary concern. Unlike traditional coal plants, which provide consistent and adjustable power, solar and wind energy are intermittent—they cannot always provide electricity exactly when the grid demands it.
The Storage Infrastructure Mix
To bridge the gap between generation and demand, the CEA’s plan balances two key technologies. The target includes 321 GWh from Battery Energy Storage Systems (BESS) and 567 GWh from Pumped Storage Projects (PSPs). Pumped storage works by moving water between reservoirs at different elevations to store energy, while BESS uses large-scale battery banks. This diversification is critical because relying on a single technology increases vulnerability to supply chain shocks or regional geographical constraints.
The Scale of the Challenge
While the goal is clear, the current progress reveals a significant deployment gap. As of July 2026, India has commissioned only 7.5 GWh of storage. The leap from this baseline to 888 GWh requires a massive, sustained build-out over the next decade. The government is attempting to fast-track this development through financial support mechanisms, including Viability Gap Funding (VGF) and production incentives for advanced battery manufacturing. These programs aim to lower the entry cost for developers and encourage local production, reducing reliance on global supply chains.
Risks for Investors
For investors, the energy storage sector presents both opportunity and complexity. One of the primary risks involves the financial viability of BESS projects. In many cases, the high cost of battery cells has outpaced the tariffs offered in project bids, putting pressure on profit margins for developers. If project costs remain high, some under-construction capacity may face delays or financial stress.
Additionally, India remains heavily dependent on imported battery cells. Geopolitical shifts or global supply shortages can lead to price spikes, impacting the profitability of large-scale storage projects. Execution is another hurdle; the limited experience of some project sponsors in handling complex grid-scale storage solutions can lead to delays, potentially impacting project timelines.
Investors monitoring the sector should track updates on project commissioning schedules, the success of government subsidy schemes, and trends in global battery pricing. The success of this transition depends not just on the volume of projects announced, but on the ability of the industry to deliver reliable, dispatchable power at costs that remain sustainable for the grid.