Use case · EV Charging

Run a 240 kW DC fast charger
on a 60 kW grid connection.

Battery-buffered charging decouples charger draw from grid capacity. Install fast chargers where the transformer can't keep up.

Power flow architecture

Solar in. Grid trickle.
Battery buffers the burst.

The Orixe BESS sits between the grid, solar PV, and the DC fast charger — discharging fast during a charging session and refilling slowly between cars.

PV 140 kW GRID 60 kW DISCHARGE 240 kW CHARGE TO EV
Solar PV
160 kWp rooftop
Grid
60 kW · 3φ 440V
Orixe BESS
OX-240K · 480 kWh
DC Fast Charger
240 kW CCS2
EV
15 min · 80% SOC

FAST DISCHARGE SLOW GRID REFILL

Why buffer

The transformer is the bottleneck.

A 240 kW fast charger on a 60 kW grid connection would normally need an expensive upgrade. A buffered BESS solves it for less.

Without BESS

Grid-only DC charging

Charger output is capped by the weakest link in the chain — usually the transformer or the utility connection.

  • Charger output60 kW (grid-limited)
  • Charge time, 60 kWh EV~60 min
  • Transformer upgrade₹18–25 L
  • Demand-charge spikeSevere
  • Solar utilisationExport only
With Orixe BESS

Battery-buffered charging

Charger pulls from the battery, not the grid. Battery refills slowly from solar and trickle grid between sessions.

  • Charger output240 kW (full-rated)
  • Charge time, 60 kWh EV~15 min
  • Transformer upgradeNone
  • Demand-charge spikeSmoothed
  • Solar utilisationSelf-consumed
Deployments

Where battery-buffered charging fits.

Highway · 1.92 MW

Expressway charging hubs

Multi-bay 240 kW DCFC plazas on highway pull-offs. BESS absorbs the burst load of 6–8 simultaneous vehicles without provoking the grid.

Fleet · 480 kW

Bus & truck depots

Overnight depot charging for fleet operators. Time-of-use arbitrage pays for the system in 3–4 years.

Retail · 120 kW

Mall & retail forecourts

A 120 kW system delivers two simultaneous 60 kW fast-charge ports without re-trenching MV cable.

Planning an EV charging site?

Tell us the connector count, expected utilisation and grid capacity. We'll size the BESS, PV and charger mix.

Talk to engineering