Supported Devices
| Device Type | Variants | Supported |
|---|---|---|
| Solar Inverters | All | ❌ |
| Storage Devices | ✅ | |
| EV Chargers | ❌ |
| Device Type | Variants | Supported |
|---|---|---|
| Solar Inverters | All | ❌ |
| Storage Devices | ✅ | |
| EV Chargers | ❌ |
| Country | Supported |
|---|---|
| Belgium | ✅ |
| Netherlands | ❌ |
The files are typically provided in a zip archive file. Unzip the files before proceeding.
A Yuso Client ID is a short identifier in the following format:
<Yuso Thing name>-<secret string>
All these things are needed to configure the Yuso external signal in the Sofar EMS. You should have received these files from Yuso. If you haven't received them yet, please contact Yuso support.
and make sure the to the Sofar EMS.
In the settings, the grid power limits should be set correctly. Click Settings and check the highlighted setting in the image. If necessary, adjust the settings.
Some batteries don't give the energy and power values on the AC-side of the inverter. This can be a potential loss in revenue during negative imbalance moments. We provide a simple solution in which a dedicated meter can be assigned to a battery. Instead of reading out the battery power, we read out the power of the dedicated meter.
If you want to enabled this:
In case of multiple batteries or battery containers: Yuso steers the batteries as one virtually aggregated BESS. For correct configuration please select the group in which the batteries are located. It is crucial that all batteries in this group are controlled by Yuso. There must be no other devices or batteries in the group. [!NOTE] See also "".
Yuso uses a cloud-based platform that enables communication with Sofar EMS. This is done via the MQTT communication protocol, monitoring and controlling various parameters.
Basically, every minute, Yuso sends a signal (steering modus) to be executed by the Sofar EMS. Every minute, Yuso algorithms computes the best steering modus for that bess at that point in time.
There are three steering modi, which are mutually exclusive:
Active Modus = self-supply (or during communication failure)
Yuso sends a self-supply signal to the Sofar EMS when there are no opportunities to trade on
imbalance market. This is also the mode being applied when communication with the internet or with Yuso is lost.
Software version 1.18.0.3 or older: In this modus, Yuso asks the Sofar EMS to steer 'self-supply' on the meter. The Sofar EMS follow the mode configured as default mode (e.g. "Self-consumption") in the Sofar EMS, which can be configured in the .
Software version 1.18.0.4 or newer: In this modus, Yuso asks the Sofar EMS to steer towards 0 on the meter. The battery will be used for self-consumption when the grid limits are not exceeded. This means that the battery will charge when there is excess production and discharge when there is local demand.
3. Active Modus = direct
Yuso sends a power-setpoint to the Sofar EMS, which in practice results in a high-power (dis)charge command on your battery, for the benefit of the imbalance market.
The Sofar EMS can adjust the setpoint to ensure safe operation of the battery and compliance with grid limits.
We strongly discourage setting up another external signal besides the Yuso signal. The Sofar EMS can only handle one external signal at a time. If you set up another external signal, it will override the Yuso signal if the other signal has a higher priority assigned. This means that the Yuso signal will not be executed, and the battery will not be controlled by Yuso.
If you proceed with setting up another external signal, please be aware of the following:
The Sofar EMS supports two Yuso services:
At the moment it is not possible to use both Yuso products at the same time. If you want to use Yuso battery control, you need to disable Yuso PV-curtailment. If you want to use Yuso PV-curtailment, you need to disable Yuso battery control.
However, it is possible to use any local control mode (e.g. cost optimization) on the solar panels and Yuso battery control at the same time. But be aware that it can lead to contradicting behaviour of your solar inverter and battery: when the solar panels are controlled by a local control mode cost optimization, it might curtail while Yuso is discharing the battery.
Yuso is working on a solution to use both Yuso services at the same time. We will update this page when this is possible.