From backup to energy management: how batteries are changing India's power needs

For years, the conversation around batteries in Indian businesses was fairly straightforward: How much backup do you need?

That question is changing.

In conversations with businesses, channel partners, and people working across the energy ecosystem, I have increasingly noticed that the discussion is moving beyond backup duration. Businesses are asking how they can manage their energy better, protect critical operations, integrate renewable power and reduce their dependence on a single source of electricity.

That shift may appear small, but I believe it signals a much bigger change in the role batteries will play in India's energy system. India's electricity demand is entering a structurally higher-growth phase. According to the International Energy Agency (IEA), India's electricity demand is expected to grow at an average annual rate of 6.4% between 2026 and 2030, adding more than 570 TWh to annual consumption over this period. Industry is expected to account for around one-third of this additional demand.

At the same time, India's energy mix is changing rapidly. Solar and wind capacity are expanding, businesses are exploring renewable energy, and more industries are looking at ways to control when and how they consume electricity. But renewable generation does not always coincide with consumption. Solar power is abundant during the day, while a business may have significant demand in the evening or at other times.

This is where storage becomes more interesting.

A battery can store energy when it is available and make it available when it is needed. That sounds simple, but at scale it changes how businesses can think about electricity.

For example, a manufacturing unit does not necessarily need a battery only because the grid may fail. It may need storage because a production process cannot tolerate even a short interruption. A commercial facility may need it to manage critical loads. A business using solar may need it to make better use of the energy it generates.

In other words, the battery starts becoming part of the energy architecture rather than simply a backup device. The growth of data centres and artificial intelligence makes this transition even more relevant.

The IEA estimates that global data-centre electricity consumption could almost double from around 485 TWh in 2025 to approximately 950 TWh by 2030. AI-focused data centres are expected to be one of the strongest drivers of this increase.

For these facilities, reliability is not optional. A power interruption can affect computing workloads, cooling systems and critical digital infrastructure. As electricity demand becomes more dynamic, energy storage can provide another layer of flexibility between the grid and the business.

India is already preparing for this shift at the broader system level. The Central Electricity Authority's National Electricity Plan estimates that the country could require around 411.4 GWh of energy storage capacity by 2031-32, including 236.22 GWh from battery energy storage systems. These numbers tell us something important: storage is moving from the margins of the power sector towards its centre.

Earlier, discussions were largely centred on replacing conventional batteries or extending backup time. Now, the conversation is about system design—what loads need to be protected, how much energy needs to be stored, how storage can work alongside existing power infrastructure and whether the system can adapt to future energy requirements.

That is an important distinction.

Not every business needs a large battery system, and storage will not automatically make economic sense for every application. The right solution depends on the load profile, electricity tariffs, grid reliability, renewable generation, operating hours and the cost of the storage system itself.

But businesses are beginning to look at energy as something they can actively manage rather than simply consume.

Technology is making that possible.

(Chirag Chawla is the Founder and CEO of Electrent Energy)