EV Charging

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Updated 2025-11-01

What are the benefits of Ferroamp when charging an electric car?

Ferroamp’s phase balancing provides a smoother and faster EV charging with all AC chargers. The system can balance the loads between incoming phases to:

Enable higher power at 1-phase charging than what one of your main fuses allows.
Enable your EV charger to have as much available power as possible when you need to charge quickly.
Maximize the charging to your EV charger as most EV chargers only start if you have at least 6 A on all your phases in the house free.

If the charger is fully integrated into the Ferroamp system via OCPP, it can be controlled from Energycloud and becomes visible in the Ferroamp app. You also get the following benefits:

You can see and follow the electric car charging in EnergyCloud and in Ferroamp’s App
Load balancing based on the total use in the property. The system detects how much power is available in total in your property and can control the electric car charger to either avoid high power peaks from the electricity grid or to protect the main fuse and let it use all available power that your main fuse is able to deliver.
Charge with solar electricity. Set the charger to only charge when there is an excess of solar power in the system.

Which EV chargers can be used with the Ferroamp system?

All models of electric car chargers that are alternating current chargers (AC charging) work together with EnergyHub. For full integration, where the charger becomes visible in EnergyCloud and Ferroamp app and can be controlled as part of the system, it needs to be open to the OCPP 1.6-J communication protocol.

OCPP stands for Open Charge Point Protocol and is a standardized application protocol for communication between EV charging stations and a central control system, (in the Ferroamp system, the central control system is EnergyHub).

The following chargers have been tested and verified for control by Ferroamp via OCPP:

Garo
- GLB+ (NOTE! Installation of GARO chargers requires that you are a certified GARO installer)
- Entity PRO (firmware >2.8.1)
- Entity Home (firmware >2.8.1)
Ctek
Chargestorm Connected 2
Chargestorm Connected 3

Wallbox – Please note: The integration with Wallbox wallboxes does not work with later software versions than the one listed below. Wallbox is currently working on resolving the issue.

Pulsar Plus (v6.6.12)

Pulsar MAX (v6.6.12)

Copper SB (v6.6.12)

Charge Amps

Halo (Mjukvaruversion v178)

Aura (Mjukvaruversion v142)

Dawn (Mjukvaruversion v1.4.4)

Luna (Mjukvaruversion v1.6.4)

Raymond

Smart Solar Charger / Enelion Stil

Zaptec

Go (Mjukvaruversion 2.4.2.4)

Eldon

One Smart (Firmware 1.7.3)
Duo Smart (Firmware 1.7.3)

NOTE

It is up to each wallbox manufacturer to open up the wallbox for smart control. Therefore, if your charger is not on the list of verified chargers and you want to integrate it with the Ferroamp system, you need to contact the manufacturer.

If their charger is open to OCPP 1.6-J, you can ask them to contact Ferroamp to initiate a process to verify that they are following the protocol.

How can I control my wallbox in the Ferroamp system?

If your charger is integrated into the Ferroamp system via OCPP, it can be controlled as follows:

1. To protect the main fuse. This is done by activating phase balancing.

2. To avoid power peaks. Set a value for how high a total import of power you want to allow from the electricity grid. Charging will then be limited or paused when the limit is reached until there is again available power.

– Go to System Settings/System Configuration/Operational Settings/Advanced

– Click the Limit Import for EV Charging and PowerShare

– Fill in the total power consumption at which you want to limit electric car charging under Grid import threshold.

– Then click on update at the bottom of the left window to enable the setting.

NOTE
The selected operating mode does not matter for EV charging.

3.Charge with solar electricity. Activate “Limit Import for EV Charging and PowerShare” in the same way as when you want to avoid electric car charging causing power peaks (see above), but set the threshold value to 0 so that charging never takes place from the grid, but only with excess solar electricity.

Schedule
You can also schedule this power limitation through our “Scheduling” feature and then, for example, allow the car to only charge with solar electricity during the day and allow a higher import from the grid during the night when electricity prices are generally lower.

NOTE!
Most electric cars require at least 6 A per phase for the car to charge, which requires an overproduction of about 4.2 kW for the car to start charging.

How does EV charging work with FerroAI?

How many charging points can I connect to my EnergyHub via OCPP?

Ferroamp supports 7 charging points in a facility and the same facility, a charging box with 2 outlets counts as 2 charging points.

How do I see charging with multiple charging points?

EnergyCloud and the Ferroamp app visualize one outlet at a time and switch between different charging boxes’ outlets. This is a visual limitation – the actual power control and the limitation of the sockets takes place continuously without affecting the app’s display.

This feature may change in future updates.

Can I control and view my EV charger with both Ferroamp's and the manufacturer's app?

If the EV charger is integrated with the Ferroamp system via OCPP, you will not be able to control or follow the charging in the charger’s app unless the wallbox can handle more OCPP connections. The app from the car manufacturer will work as usual and you will continue to be able to use e.g. timers, power limits and other features that the electric car manufacturer offers in its app.

How do I connect my EV charger to EnergyHub?

NOTE
Only trained electricians are allowed to install Ferroamps products and carry out the connection of OCPP.

In order to enable the OCPP feature, the following steps need to be performed.

Settings router

Assign a static/fixed IP address for the EnergyHub in your router (note: do not use the EnergyHub display for this).

Static IP is assigned by inserting an exception to DHCP functionality in your network router and setting the same IP address to always be assigned to EnergyHub. The router identifies the EnergyHub by its MAC address, which can be found together with the serial number on the silver label that is on your EnergyHub, and it is thus this MAC address that should be assigned a static IP address. For help on how to set up static IP on your particular router, read the manual for the router or the FAQ from the router manufacturer or contact their support.
For rack cabinets, please contact Ferroamp support.

Settings charging box

For Zaptec Go: Add Ferroamp as a user to Zaptec’s system according to the following link, Ferroamp – Grant access
For other charging boxes: Change the endpoint to the following ws://IP-of-EnergyHub-or-Display:9000 (e.g. ws:// 192.168.1.225:9000)
In the case of previous integration with CTEK, also deactivate “Available currents” in the wallbox’s portal and change the Nanogrid load balancing to “None” under Configuration >network.

The following information needs to be sent to Ferroamp support to activate the feature