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Scholt

Supported devices

Device Type
Scholt hybrid inverter (MQTT)
Scholt hybrid inverter

Configuration steps

Prerequisite: the MQTT broker that publishes the Scholt topics is reachable by the controller (default ports 1883 or 8883 for TLS).

  1. Locate the MQTT “site filter”
    In your Scholt portal or documentation, find the topic prefix
    (e.g. site_42/…).
    You will pass this value to the driver.

  2. (Optional) create a broker user
    If your broker is not anonymous, create a username / password pair.

  3. Add the device in SmartgridOne

    • Integrations → Add device

    • Choose Scholt MQTT Hybrid Inverter Protocol

    • Fill in the fields:

      FieldExample / Note
      Host / Portmqtt.example.lan : 1883
      Site filtersite_42
      Capacity [kWh]11 (optional)
      Battery nominal power [kW]5 (optional)
      Solar nominal power [kW]8 (optional)
      Grid / Consumption meter topicsleave empty unless needed
      MQTT usernameleave empty if broker is open

    After saving, the inverter and its children (battery, PV, meters) appear.


Metrics exposed

KeyDescriptionUnit
actualPowerTot_WInstantaneous grid power (positive = import)W
stateOfCharge_fracBattery state-of-charge (0 – 1)
importedEnergyDeltaTot_WhImported energy since previous read-out ¹Wh
exportedEnergyDeltaTot_WhExported energy since previous read-out ¹Wh

¹ Calculated by the driver if absolute kWh counters are not available.


Troubleshooting

  • No measurements – make sure the topic …/raw_data/latest returns a JSON payload containing at least soc and active_power_in.
  • Command ignored – check that smart-grid mode is enabled and that the requested set-point differs by at least ±100 W from the previous value (driver dead-band).
  • Multiple Scholt sites – add one driver instance per site filter to avoid topic collisions.

Useful resources