Load Balancing is a passive Power Management feature. The point is to limit a charger's power usage based on the available power in the building.

Load Balancing: The charger's usage is limited by the group's maximum current.

Dynamic Load Balancing: The group's maximum current is changed by other devices in the group that use power (oven, heat pump) or generate power (solar panels). A meter is used to register these other devices.

Power Sharing: The group's available power is distributed between several chargers or connectors.

When a Power Management group is created, load balancing is always active. You can set the group's charge mode to Fast, which lets the chargers pull the maximum the group allows. In the Solar Balancing modes, Load Balancing is still active and keeps the group under its maximum current. Load Balancing limits charging power; it is not a protective device, so the installation still needs its own fuses and protection.

These settings are set per location, so you find them in the location settings, not in the charger settings. They need the Smart license.

Dynamic Load Balancing is a technology used to constantly adjust the amount of power your chargers will use. This allows for faster charging speeds overall.

For Dynamic Load Balancing, we need to know the following variables:

To measure your other consumption, you need a meter installed at the main fuse of your building.

For load and solar balancing purposes, we refer to A (Amps) and not W (Watts). The combination of a certain A with the amount of phases your car or your building has, translated to the following kW:

Let's say you have a home with a 25A main fuse. If you pull more power than 25A, you run the risk your fuses will blow out. So this is the limit in red:
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In this scenario, your charger may be installed at a maximum of 20A. Without load balancing, this is how that would look:

However, if you are using more devices in your building than just your charger, you will quickly use too much power. Even adding the hair dryer or the oven would result in crossing the maximum of 25A:

To stay under the limit, we must know how much power you are using elsewhere, using a Meter installed at the main fuse of your building. With this, we can see the total consumption of all your devices combined:

Before we start charging now, there is one more limiting factor to consider. First is the car itself. While the charger may be installed at 20A, your car may only be able to do 16A:

Now we're ready to charge at maximum power. Here's how that looks:

You may notice at 8:30, we are not charging even though there is 5A of room left. The reason for this is that your car needs at least 6A to charge. This cannot be changed, as the charging standard sets this minimum.

Another thing to note is that in practice, we keep a bit of margin in between the main fuse and the total consumption. To leave room for error, and not to stress your fuse too much, in reality you would only go to a maximum of 23A in this scenario.

In case you have a 3-phase building, the charger will adapt to only the worst-case phase. So if you are using a lot on phase #2, and nothing on phase #1 and #3, the charger will only charge at the maximum rate that phase #2 allows, even if you could have drawn more power from the other phases.

If you have a 1-phase car, things get interesting. What if you are charging your car on phase #1 in this scenario? Because we know charging faster won't affect phase #2, we can charge at the maximum rate that phase #1 allows, and ignore phase #2. And if visitors plug in a 3-phase car, we detect this and quickly switch back to checking all phases.