BESS Breaks the 30 kW Ceiling at EV Charging Sites

Most EV charging sites in India hit the same ceiling: a 30 kW connection, two cars charging, and everyone else waiting.

Your DISCOM will sanction a higher load quickly enough. But if the local transformer or feeder needs augmenting, real power is months away. Meanwhile the site runs at half utilisation and payback slips.

The faster route: storage on the connection you already have

A battery energy storage system sited behind the meter charges during idle hours on the existing grid connection, then delivers that stored power on demand. The station dispenses far more than 30 kW even though the sanctioned load never changed.

What that unlocks

• Power above sanctioned load — peak dispensing capacity is set by the battery, not the feeder
• Lower cost per kWh — charge in off-peak windows, dispense in peak, without a tariff category change
• Chargers that run through outages — the site stays revenue-generating when the grid does not
• No transformer upgrade, no HT works, no waiting — the civil and approval path that dominates the timeline simply drops out

Why the control layer decides the economics

Behind-the-meter storage at a charging site is a scheduling problem under constraints: state of charge, tariff windows, session demand that arrives unannounced, and a sanctioned-load ceiling that must never be breached. Get the dispatch wrong and you either draw a demand penalty or run out of stored energy at the worst moment.

It all runs on Ingro EMS — one cloud dashboard covering every asset across every station, with reports an operations team can actually use.

If this sounds like your site, we are happy to look at the numbers with you.