Connect EnerChart

EnerChart is an energy monitoring and analysis platform by krumedia GmbH, widely used in the DACH market for consumption visualisation, benchmarking, and reporting. Typical users include energy consultants, property managers, and facility managers.

Available from the Growing plan (MQTT) or Starter plan (CSV by email).

Recommended: MQTT

energiedaten.at publishes readings to an MQTT broker; EnerChart subscribes to the topics and reads the data automatically.

Prerequisites

  • energiedaten.at Growing plan or higher
  • At least one connected meter with data
  • EnerChart instance with MQTT connectivity
  • MQTT broker reachable by both systems (e.g. Mosquitto)

Setup

  1. Provision an MQTT broker — the broker must be reachable by both energiedaten.at (internet) and EnerChart (your network).
  2. Set up an MQTT connection in energiedaten.at → Set up MQTT. Configure the broker host, port, credentials, and topic prefix (e.g. energiedaten/).
  3. Assign meters via routes in energiedaten.at.
  4. In EnerChart: create an MQTT data source using the same broker credentials.
  5. Set the topic subscription to match the energiedaten.at topic prefix (e.g. energiedaten/#).
  6. Configure a JavaScript decoder to map the JSON message to EnerChart data points. energiedaten.at sends:
{
  "meter_id": "AT001...",
  "timestamp": "2025-03-16T08:15:00+01:00",
  "value_kwh": 0.285,
  "unit": "kWh",
  "quality": "measured"
}

The decoder extracts timestamp and value_kwh and maps them to the EnerChart fields.

  1. Verify: Readings appear in the EnerChart monitoring view.

The exact configuration of the MQTT data source in EnerChart depends on your EnerChart version. Refer to the built-in EnerChart manual or contact krumedia support for details.

Alternative: CSV by Email

From the Starter plan, you can send measurement data as a CSV attachment by email to EnerChart — see Email & CSV delivery.

energiedaten.at sends the CSV file automatically on a schedule. In EnerChart, you import the file manually via the Format Editor, where columns and delimiters are configured per import source.

Limitations compared to MQTT: The CSV export only contains data available at the time of export. Subsequent corrections by the grid operator (L3 data) and historical back-deliveries are not included automatically. MQTT always transmits the most up-to-date values.

Outlook

Automatic SFTP delivery directly to EnerChart's built-in FTP server is planned.