A Bengaluru Climate-Tech Startup Raises $85 Million to Scale Grid Batteries

A Bengaluru-based climate-technology startup raised $85 million to expand manufacturing of large batteries that store electricity for the power grid, one of the bigger funding rounds this year for a company in the energy storage space.

The firm builds battery systems that soak up cheap solar power during the day and release it in the evening, helping utilities manage the swings that come with a grid increasingly reliant on renewables. Demand for such storage has climbed sharply as solar capacity has raced ahead of the grid's ability to absorb it.

Why storage is suddenly hot

For years, the clean-energy story was about generation — how many gigawatts of solar and wind could be built, and how cheaply. That problem has largely been solved; renewable power is now often the cheapest electricity available. The new bottleneck is timing. Solar produces its power in the middle of the day, but demand peaks in the evening, after the sun has set, when air conditioners and lights come on.

Storage bridges that gap. A battery that charges on cheap midday solar and discharges into the evening peak turns intermittent renewable power into something closer to the dispatchable, on-demand electricity that grids were built around. As the share of renewables rises, the value of that flexibility rises with it — which is why investors have begun to treat storage as the critical piece of the puzzle.

The company's bet

The startup plans to use the new capital to build a larger factory and to localise more of its supply chain, reducing its dependence on imported cells and components. Executives said falling cell prices and supportive government procurement rules had transformed the economics of grid storage over the past two years, turning a niche product into a mainstream utility purchase.

The round drew a mix of domestic and international climate funds, a signal that global investors see the country's energy transition as a large and durable market. The company said it was already fielding interest from state utilities and industrial customers looking to firm up their renewable supply and cut their exposure to volatile peak-hour power prices.

The competition and the caveats

The opportunity has not gone unnoticed. Established manufacturers, global battery giants and a clutch of well-funded rivals are all chasing the same market, and competition from imported systems remains intense. Margins in hardware are thin, and success will depend on manufacturing at scale, keeping quality high and navigating a supply chain for critical minerals that is concentrated in a handful of countries.

Still, the direction of travel is clear. As the grid leans ever harder on renewables, the ability to store and shift power will only grow in importance — and the companies that can build that capacity cheaply and reliably stand to be among the biggest winners of the energy transition.