Huawei SUN2000 Hybrid Inverter

Grid and Battery require the Huawei Smart Power Sensor (DDSU/DTSU666 or SmartPS).

Modbus TCP requires activation within the communication settings of the inverter using an "installer account", see Modbus TCP Activation Guide.

WARNING!

Please beware that the following circumstances may lead to Modbus communication interruptions:

outdated firmware
altering inverter/battery configuration settings via Huawei FusionSolar portal
other applications (e.g. Home Assistant) accessing the inverter via Modbus proxy (also depending on plant complexity, e.g. number of cascaded inverters)

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 For forced charging of the battery.		optional
`maxdischargepower` [W]	Maximum discharge power Maximum discharge power of the storage.		optional
`timeout`	Timeout Default: `15s` Example: `10s`		optional
`capacity` [kWh]	Battery capacity Example: `50`		optional
`minsoc` [%]	Minimum charge Lower limit when discharging the battery in normal operation Example: `25`		optional
`maxsoc` [%]	Maximum charge Upper limit when charging the battery from the grid Example: `95`		optional
`maxacpower` [W]	Maximum AC power of the hybrid inverter Default: `0` Example: `5000`		advanced
`storageunit`	Battery storage unit index Default: `1`		advanced
`forceaccharging`	Inverter cascade Keep AC charging active to charge the storage from other inverters via AC. May prevent standby with older firmware versions. Default: `false`		advanced

Configuration example for evcc.yaml

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

Grid meter Solar production Battery

meters:
    - name: my_grid
      type: template
      template: huawei-sun2000-hybrid
      usage: grid

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 1
      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: 1
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port
      timeout: 15s # Timeout, optional

meters:
    - name: my_pv
      type: template
      template: huawei-sun2000-hybrid
      usage: pv

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 1
      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: 1
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port
      timeout: 15s # Timeout, optional
      maxacpower: 0 # Maximum AC power of the hybrid inverter (W), optional

meters:
    - name: my_battery
      type: template
      template: huawei-sun2000-hybrid
      usage: battery

      # RS485 via adapter (Modbus RTU)
      modbus: rs485serial
      id: 1
      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: 1
      host:  # Hostname
      port: 502 # Port

      # Modbus TCP
      modbus: tcpip
      id: 1
      host:  # Hostname
      port: 502 # Port
      maxchargepower: # Maximum charge power (W), For forced charging of the battery.
      maxdischargepower: # Maximum discharge power (W), Maximum discharge power of the storage.
      timeout: 15s # Timeout, optional
      capacity: 50 # Battery capacity (kWh), optional
      minsoc: 25 # Minimum charge (%), Lower limit when discharging the battery in normal operation (optional)
      maxsoc: 95 # Maximum charge (%), Upper limit when charging the battery from the grid (optional)
      storageunit: 1 # Battery storage unit index, optional
      forceaccharging: false # Inverter cascade, Keep AC charging active to charge the storage from other inverters via AC. May prevent standby with older firmware versions. (optional)