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Electric Vehicle (EV) Charging Stations

The first question on any charging station request is whether the existing electrical infrastructure can carry the extra load.

The simultaneity factor is what decides sizing

AC charging units typically run in the 7-22 kW range, while DC fast charging can go above 50 kW. At stations where several units operate at once, leaving the simultaneity factor out of the calculation results in a connection that's either oversized or short on capacity.

Electric Vehicle (EV) Charging Stations
Electric Vehicle (EV) Charging Stations

A single DC fast charging unit can draw more power than ten AC charging points running at the same time.

What's Included

  • AC and DC charging unit installation
  • Power analysis and simultaneity factor calculation
  • Dynamic load management system integration
  • Cable routing and panel design
  • Coordination on projects requiring a transformer connection
  • Charging management software integration
  • Function tests and user training

AC charging

Conversion happens in the vehicle's own onboard charger, so the infrastructure stays relatively simple; it's the common choice for residential and workplace car parks.

DC fast charging

Conversion happens on the station side, which calls for a stronger LV connection and sometimes a dedicated transformer; it's the preferred option for highway-side stations.

Standards We Apply

IEC 61851 Electric vehicle conductive charging system

Frequently Asked Questions

Is the existing meter capacity enough for a charging station?
That depends on the number and power of the units. Before any power analysis, the existing connection capacity and the simultaneity factor are calculated.
Does DC fast charging require a dedicated transformer?
On high-power, multi-unit DC stations, a separate connection may be needed if the existing transformer capacity falls short; this is assessed on a project basis.
What does dynamic load management do?
It keeps total power draw under the building's grid limit, which lets more charging points go in without a major infrastructure investment.
How long does installation take?
Simple AC installations can be finished in a few days, while DC projects that require a transformer connection can take longer.

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