Growatt Modbus Integration for Home Assistant ☀️

A native Home Assistant integration for Growatt solar inverters using direct Modbus RTU/TCP communication. Real-time data straight from your inverter — no cloud, no ShineWiFi, no dependency on Growatt's servers.

📖 Full documentation → https://0xaha.github.io/Growatt_ModbusTCP/

The documentation site covers supported models, sensor reference, inverter controls, energy dashboard setup, troubleshooting, and developer guides.

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Installation

HACS (Recommended)

1. Open HACS → ⋮ menu → Custom repositories
2. Add URL https://github.com/0xAHA/Growatt_ModbusTCP, category: Integration
3. Search "Growatt Modbus" in HACS → Download
4. Restart Home Assistant
5. Settings → Devices & Services → Add Integration → search "Growatt Modbus"

Manual

1. Download the latest release and extract
2. Copy growatt_modbus/ into config/custom_components/
3. Restart Home Assistant and add via Settings → Devices & Services

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Setup

The setup wizard runs auto-detection automatically for VPP-capable inverters. For legacy models, select the profile manually based on your inverter's power range.

Parameter	TCP	Serial
Host / Device	IP address (e.g. 192.168.1.100)	Path (e.g. /dev/ttyUSB0)
Port / Baudrate	502	9600
Slave ID	1 (usually)	1 (usually)

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Support

• Issues & bug reports: GitHub Issues
• Community: Home Assistant Forum

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License

MIT License — see LICENSE

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Made with ☀️ and ☕ by @0xAHA