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Paragraph 14a Integration

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This integration is specifically for German users under the rules of EnWG Paragraph 14a, which allows grid operators to temporarily limit power consumption of controllable loads during peak periods.

This guide will help you configure your SmartgridOne Controller to integrate with the SmartMeterGateway (SMGW) for Paragraph 14a compliance in Germany.

What you need​

  1. SmartgridOne Controller with internet connectivity.
  2. Connection to a SmartMeterGateway (SMGW) with digital output signals.
  3. For standard controllers:
    • Direct connection from the SMGW to the Digital Input (DI) pins on your controller.
  4. For lite controllers or controllers without DI pins:
    • SG-ready relay module (DS1242)
    • Ethernet connection from the controller to the relay module
    • Connection from the SMGW to the DI pins on the relay module

How it works​

The Paragraph 14a integration enables your system to respond to grid management signals from your distribution system operator (DSO). When the grid is under strain, your SmartMeterGateway will send a signal to your SmartgridOne Controller, which will temporarily limit the power consumption of connected devices to 4.2kW by default.

Configuration Process​

The setup consists of two main parts:

  1. Adding the Digital Input Device
  2. Configuring the Paragraph 14a external signal

Part 1: Add the Digital Input Device​

  1. Log in to the commissioning interface.

  2. Go to the "Devices" tab and click "Start device wizard".

Device wizard button

  1. Based on your controller type, follow one of these paths:

    For Standard Controllers:

    • Choose "Energy Meter" as the device type
    • Select "Generic" as the brand
    • Select "Relay" as the connection type
    • Select "Digital Input Device" as the model

    For Lite Controllers:

    • Choose "Energy Meter" as the device type
    • Select "Generic" as the brand
    • Select "Ethernet TCP to relay converter" as the connection type
    • Select "DS1242" as the model

  2. Complete the device wizard by following the on-screen prompts:

    • Enter any requested additional inputs
    • For Ethernet connections, select the device by MAC address (recommended) or IP address
    • Adjust scan parameters if needed (default values are typically fine)
    • Wait for the device to be found and save it

    For detailed instructions on adding a device, see our Adding a Device guide.

Part 2: Add the External Signal for Paragraph 14a​

  1. Go to the "External Data Sources" tab and click "Start Wizard".
External data sources button
  1. Select "External Signal" as the kind of data source.
External signal selection

  1. Navigate to and select "Paragraph 14a" from the available external signals.

  2. Configure the Paragraph 14a integration:

    • Choose all devices for which this signal should apply
    • The default power limit is set to 4.2kW, which is the standard for Paragraph 14a compliance
    • You can adjust this value if your agreement with the grid operator specifies a different limit

  3. Complete the wizard by clicking "Save" or "Finish".

  4. You should now see the Paragraph 14a signal added to your external signals list.

Technical Details​

When a Paragraph 14a signal is received:

  1. The SmartgridOne Controller immediately limits the power consumption of selected devices
  2. The default power limit is 4.2kW
  3. Essential services remain unaffected
  4. Normal operation resumes automatically when the signal ends
External Signal Priority

The Paragraph 14a signal has priority over local control modes and external signals. When active, it will limit power to controllables and then the local moode will have effect.