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PowerSync Wiki

Welcome to the PowerSync wiki. This is the detailed reference for setting up and configuring PowerSync.

Supported Battery Systems

System	Connection
Tesla Powerwall	PowerSync.cc, Fleet API, or Teslemetry
Sigenergy	Cloud API + local Modbus TCP
Sungrow SH-series	Local Modbus TCP
FoxESS (H1, H3, H3-Pro, H3 Smart, KH)	Modbus TCP or RS485
GoodWe hybrid (ET/EH/BT/BH/ES/EM/BP)	UDP or TCP (local), or Modbus TCP gateway
AlphaESS (SMILE/Storion)	Local Modbus TCP + optional Cloud API
ESY Sunhome (HM series)	Via ESY Sunhome companion integration (HACS)
Solax Hybrid (X1/X3 Gen4–Gen6, AC Retro-Fit)	Via Solax Modbus companion integration (HACS)
SAJ H2 / HS2	Via SAJ H2 Modbus companion integration (HACS)

See Battery System Setup for connection guides and capability details.

Getting Started

• Installation
• Battery System Setup
• Electricity Providers

Features

• Smart Optimization
• EV Smart Charging
• Advanced Features
• AC-Coupled Inverter Curtailment

Reference

• Sensors
• Services Reference
• Dashboard Setup
• Troubleshooting

Mobile App

Remote monitoring and control via iOS and Android.

iOS: Join TestFlight | Android: Join Beta

New to PowerSync? Try Demo Mode in the mobile app to explore the interface with simulated data — no Home Assistant connection required.

License

PowerSync is licensed under the PolyForm Noncommercial 1.0.0 license. You are free to use, modify, and distribute the software for any noncommercial purpose. Commercial use requires separate permission from the author.

Support

• Discord: https://discord.gg/eaWDWxEWE3 — bug reports, feature requests, and support