growatt-server

Growatt solar inverter server — Java reimplementation. Receive, decode, and forward real-time inverter data to MQTT, InfluxDB, PVOutput, and more.

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Live Preview

Embedded Dashboard

Animated with simulated data — your real inverter values appear here when connected

Simulated live data

PV String 1

380V

PV String 2

372V

Grid Voltage

232V

Grid Frequency

50.0Hz

Temperature

41°C

Energy Today

14.3kWh

Energy Total

4,821kWh

Battery SOC

78%

Capabilities

Everything you need

Built for Growatt SPH hybrid inverters with WiFi or LAN datalogger

📡

TCP + UDP Protocol

Listens for incoming inverter connections on both TCP and UDP. Handles XOR-encrypted protocol 06, registration handshakes, ping/ACK, and buffered records automatically.

🏠

Home Assistant via MQTT

Publishes real-time inverter data as JSON to any MQTT broker. Includes automatic HA MQTT Discovery — sensors appear instantly with correct device classes and units.

📊

InfluxDB v2

Write every reading directly to InfluxDB for long-term time-series storage. Pair with Grafana for beautiful historical dashboards and energy analytics.

🌤️

PVOutput

Automatically upload generation data to PVOutput.org. Configurable rate limiting, temperature reporting, and energy/power values — all correctly scaled.

🔌

REST API + Web UI

Built-in live dashboard and REST API to monitor all connected inverters, browse raw values, inspect registry state, and configure MQTT on the fly.

🐳

Docker Ready

Zero-config Docker deployment. All credentials are passed via environment variables — no config files to manage. Runs on any ARM or x86 host.

Get Started

Up and running in minutes

Point your Growatt datalogger at this server's IP on port 5279. The dashboard opens on port 5782.

# docker-compose.yml
services:
  growatt-server:
    image: eclipse-temurin:21-jre
    ports:
      - "5279:5279"   # inverter TCP / UDP
      - "5782:5782"   # web dashboard & API
    environment:
      - MQTT_ENABLED=true
      - MQTT_HOST=your-mqtt-broker
      - MQTT_HA_DISCOVERY=true
    command: ["java", "-jar", "/app/growatt-server.jar"]
    volumes:
      - ./growatt-server.jar:/app/growatt-server.jar:ro
    restart: unless-stopped

growatt-server

Embedded Dashboard

Everything you need

Up and running in minutes

Get growatt-server