SMA EV Charger (SEMP)

← Chargers

Configure the SEMP base URL (http://<charger-host>/SEMP) and the device ID of the charger. IMPORTANT: The charger must NOT be registered directly as a consumer in the Sunny Home Manager / Sunny Portal at the same time!

Setup on the "SMA EV Charger":

1. Set the rotary switch on the wallbox to PV/Eco charging.
2. Deactivate the wallbox in the Sunny Portal (it can be added back via evcc later).
3. Set "Operation with grid connection point meter" to "Yes" and set up a meter (SMA Sunny Home Manager 2 or Energy Meter) under "Configuration -> Parameters -> Meter configuration". This is required for the SEMP interface to be enabled.
4. Set "Charging release via app" to "No".
5. Set "Disconnect after full charge" to "No".
6. Restart the device and wait for it to come back online.
7. Add the charger in evcc and check/save the configuration (a vehicle may need to be connected for the SEMP interface to report the correct status).

Supported features

• mA regulation: Finer charging current regulation (mA instead of A) for better solar surplus use.
• 1P/3P: Automatic phase switching. Useful for solar surplus charging.
• Built-in meter: Support for an integrated meter.
• Dimmable: Power consumption can be reduced (e.g. § 14a EnWG). See External Limit.

💚 Sponsor token required

This device is available to sponsors of the project. Read more about our sponsorship model.

Parameters

Name	Description	Value	Level
uri	SEMP base URL HTTP(S) address Example: http://192.168.178.100/SEMP		optional

Configuration example for evcc.yaml

If you don't want to configure via the UI, you can alternatively use this YAML block.

chargers:
    - name: my_charger
      type: template
      template: semp-sma
      uri: http://192.168.178.100/SEMP # SEMP base URL, HTTP(S) address