Growatt Interrogator

About

A simple (very poorly written) Python 3 script to interrogate a Growatt Inverter for power information via USB and publishes to Home Assistant via MQTT. Optionally uploads data to PVOutput.org for tracking solar generation and overall consumption

Example: Bus'Ted Solar Generation

MQTT

Once up and running, this addon will automatically send all sensors to Home Assistant

Auto Discovery

Home Assistant should pick up all the Growatt sensors automatically via the MQTT auto discovery method - This currently cannot be disabled - Coming Soon.

MQTT Topics

The Growatt Interrogator addon publishes to the gwi/ prefix.

MAY NOT WORK WITH HASSOS

HassOS MAY possibly lack certain kernel modules required to correctly communicate with your inverter. It is recommended to run this addon on top of Home Assistant Supervised

Inverters using the usbserial kernel driver should work. Your milage may vary.

Requirements

• Growatt Invertor plugged into your Home Assistant instance via USB
• MQTT Server
• (Optionally) PVOutput account with System ID and API Key

Installation

version: '3'

services:
  growatt-interrogator:
    image: "ghcr.io/primusnz/growatt-interrogator:master"
    container_name: growatt-interrogator
    restart: unless-stopped
    devices:
      - /dev/ttyUSB0:/dev/ttyUSB0 # Your Inverter 
    environment:
      - MAPFILE=default
      - INVERTER_PORT=/dev/ttyUSB0
      - MQTT_HOST=192.168.X.X
      - MQTT_PORT=1883
      - MQTT_USER=USERNAME
      - MQTT_PASSWORD=PASSWORD
      - PVO_ENABLED=false
      - PVO_SYSTEMID=
      - PVO_APIKEY=
      - DEBUG_REGISTERS=
      - VERBOSE=false
      - DISCOVERY=true
      - TIME_SYNC=True