FoxESS H3-Pro/Smart Series Hybrid Inverter

Supported features

Battery control: External control of home battery charging and discharging via evcc.

Usage areas

Grid meter
Solar production
Battery

Parameters

Modbus

Name	Description	Value	Level
`id`	Modbus ID Default: `1`	int	required
`device`	Device name USB-RS485 adapter Example: `/dev/ttyUSB0`		required
`baudrate`	Baudrate Default: `9600`		required
`comset`	ComSet Communication parameter for the adapter Default: `8N1`		required
`host`	IP address or hostname Example: `192.0.2.2`		required
`port`	Port Default: `502`	int	required
`maxchargepower` [W]	Maximum charge power Highest power the battery system can charge with. The optimizer plans with charging up to this power. Some devices also use it as grid charging power.		optional
`maxdischargecurrent`	Max Discharge Current Battery max discharge current in A, written back when leaving hold mode. Inverter default is 50 A for H3-Pro/Smart (26 A for H3).		optional
`capacity` [kWh]	Battery capacity Example: `50`		optional
`minsoc` [%]	Minimum charge Lower limit as configured on the battery system. Used by optimizer. Default: `10` Example: `25`		optional
`maxsoc` [%]	Maximum charge Upper limit as configured on the battery system. Used by optimizer and, on some devices, for grid charging. Default: `100` Example: `95`		optional
`maxchargecurrent`	Max Charge Current Battery max charge current in A, written back when leaving holdcharge mode. Inverter default is 50 A for H3-Pro/Smart. Default: `50`		optional
`maxacpower` [W]	Maximum AC power of the hybrid inverter Default: `0` Example: `5000`		advanced
`maxdischargepower` [W]	Maximum discharge power Highest power the battery system can discharge with. The optimizer plans with discharging up to this power. Smart mode assumes the battery supplies at most this power to vehicle charging.		advanced

Configuration example for evcc.yaml

If you don't want to configure via the UI, you can alternatively use this YAML block.

Grid meterSolar productionBattery

meters:
    - name: my_grid
      type: template
      template: fox-ess-h3-smart
      usage: grid

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 247
      device: /dev/ttyUSB0 # USB-RS485 Adapter Adresse
      baudrate: 9600 # Prüfe die Geräteeinstellungen, typische Werte sind 9600, 19200, 38400, 57600, 115200
      comset: "8N1" # Kommunikationsparameter für den Adapter

      # RS485 via TCP/IP (Modbus RTU)
      modbus: rs485tcpip
      id: 247
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 247
      host:  # Hostname
      port: 502 # Port
      maxdischargecurrent: # Max Discharge Current, Battery max discharge current in A, written back when leaving hold mode. Inverter default is 50 A for H3-Pro/Smart (26 A for H3).
      maxchargecurrent: 50 # Max Charge Current, Battery max charge current in A, written back when leaving holdcharge mode. Inverter default is 50 A for H3-Pro/Smart. (optional)

meters:
    - name: my_pv
      type: template
      template: fox-ess-h3-smart
      usage: pv

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 247
      device: /dev/ttyUSB0 # USB-RS485 Adapter Adresse
      baudrate: 9600 # Prüfe die Geräteeinstellungen, typische Werte sind 9600, 19200, 38400, 57600, 115200
      comset: "8N1" # Kommunikationsparameter für den Adapter

      # RS485 via TCP/IP (Modbus RTU)
      modbus: rs485tcpip
      id: 247
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 247
      host:  # Hostname
      port: 502 # Port
      maxdischargecurrent: # Max Discharge Current, Battery max discharge current in A, written back when leaving hold mode. Inverter default is 50 A for H3-Pro/Smart (26 A for H3).
      maxchargecurrent: 50 # Max Charge Current, Battery max charge current in A, written back when leaving holdcharge mode. Inverter default is 50 A for H3-Pro/Smart. (optional)
      maxacpower: 0 # Maximum AC power of the hybrid inverter (W), optional

meters:
    - name: my_battery
      type: template
      template: fox-ess-h3-smart
      usage: battery

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 247
      device: /dev/ttyUSB0 # USB-RS485 Adapter Adresse
      baudrate: 9600 # Prüfe die Geräteeinstellungen, typische Werte sind 9600, 19200, 38400, 57600, 115200
      comset: "8N1" # Kommunikationsparameter für den Adapter

      # RS485 via TCP/IP (Modbus RTU)
      modbus: rs485tcpip
      id: 247
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 247
      host:  # Hostname
      port: 502 # Port
      maxchargepower: # Maximum charge power (W), Highest power the battery system can charge with. The optimizer plans with charging up to this power. Some devices also use it as grid charging power.
      maxdischargecurrent: # Max Discharge Current, Battery max discharge current in A, written back when leaving hold mode. Inverter default is 50 A for H3-Pro/Smart (26 A for H3).
      capacity: 50 # Battery capacity (kWh), optional
      minsoc: 10 # Minimum charge (%), Lower limit as configured on the battery system. Used by optimizer. (optional)
      maxsoc: 100 # Maximum charge (%), Upper limit as configured on the battery system. Used by optimizer and, on some devices, for grid charging. (optional)
      maxchargecurrent: 50 # Max Charge Current, Battery max charge current in A, written back when leaving holdcharge mode. Inverter default is 50 A for H3-Pro/Smart. (optional)
      maxdischargepower: # Maximum discharge power (W), Highest power the battery system can discharge with. The optimizer plans with discharging up to this power. Smart mode assumes the battery supplies at most this power to vehicle charging. (optional)