Virta

How to Configure the Power for Charging Points in Your Station

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As an eMobility service provider or charging point owner, ensuring that your charging stations are set up correctly is key to delivering a seamless experience for EV drivers. This guide walks you through configuring power settings for your stations, whether you operate AC stations, DC stations, or DC stations with AC charging points.
We will cover:

  • How to configure AC stations
  • How to configure DC stations
  • How to configure DC stations with AC charging points

    Let's start!

How to configure AC stations

 

How to configure DC stations

 

How to configure DC stations with AC charging points


Frequently Asked Questions


Why, if I change power (kW) or current (A) on AC charging points, do the values affect each other?

The values are linked following the basic formula to calculate power. As power and current are the main variables, any change on the voltage or installed phases will affect the resultant power.

Power (kW) = (current (A) * voltage (V) * installed phases) / 1000

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Image: AC charging point custom energy settings.

What are the installed phases? How should I choose the right one?

The installed phases are the number of wires that provide electricity to the station and affect the maximum power that a station can provide. For instance, in a three-phase installation, the load that the station requires is distributed between three wires. However, some stations might be installed in one phase due to the site's electrical infrastructure or the station model. If your station was installed by a technician or third-party installer, they should provide the information or the circuit diagram installation about how the stations were installed on the site phases.

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Image: Installed phase options. 

Why I can not see the installed phases on DC stations' charging points?

Because DC stations are always installed in 3 phases.

Why is the voltage field locked?

It’s locked because the pool’s country location determines the station voltage. The pool voltage can be changed in the edit pool view if the country has more than one voltage available.

How do these parameters affect load management services?

The station energy settings will change the station configuration. However, these are the values that will be restored after the energy management services become inactive. When an energy management service is active, it temporarily adjusts the station current and power values based on the limitation required by the service, but those temporary changes are not visible on the charging point energy settings view.

Why does a station that is not integrated into Virta Energy Services warn me that I cannot change my station energy settings?

Because the keys to control the station configuration are missing without the integration of energy services. A basic OCPP integration only allows control of basic actions such as start charging, stopping charging, release a cable or reboot a station. To request a station integration for energy services, contact Virta Sales.

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Image: Notification for not supported stations with energy services.

How can I change the station configuration for not supported stations? 

A station that is not integrated with Virta energy services can be configured using the station manufacturer's app (if available) or manually on the station if it has the controls (e.g. a home charger). However, those changes will not be detected by our system and will need to be updated manually to make the UI match the station configuration.

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