questions about power_id: powermeter0

[koosoli]

Hello, first of all thanks for doing this project!
Quick question; In the code there is this line:

# The state of this sensor (instantaneous power in watt) is used as source
    power_id: powermeter0

In home assistant I configured a Sensor that gives me the current values of the power meter (negative values are surplus power):

sensor.power_used
-0.086	unit_of_measurement: kW
friendly_name: Power-Used

so can I just write in the ESP config it like so? :

# The state of this sensor (instantaneous power in watt) is used as source
    power_id: sensor.power_used

Thanks

[syssi]

If the sensor measurement isn't available at the ESP already you have to import the Home Assistant entity first:

https://github.com/syssi/esphome-soyosource-gtn-virtual-meter/blob/main/powermeter-sensor-examples/homeassistant-native-api.yaml

api:

sensor:
  - platform: homeassistant
    id: powermeter0
    name: "Instantaneous Power"
    entity_id: sensor.power_used
    filters:
      - throttle_average: 15s

As soon the sensor measurement is available as local sensor you should apply the id: powermeter0 here.

[koosoli]

Cool!

I am not sure about these settings, do i need them?

    # Optional settings
    power_sensor_inactivity_timeout: 20s
    power_demand_calculation: NEGATIVE_MEASUREMENTS_REQUIRED
    min_power_demand: 0
    max_power_demand: 900
    zero_output_on_min_power_demand: true

Since my sensor is giving me the calculated watts already (negative being surplus)

[syssi]

1. power_sensor_inactivity_timeout: The component turns the Soyosource off after 20 seconds if there are no smartmeter measurements telling the current power demand
2. power_demand_calculation: The is the correct calculation method for your smartmeter because this calculation methods requires negative measurements if power is exported
3. min_power_demand + zero_output_on_min_power_demand: If no power is needed the Soyosource is turned off (power_output: 0W)
4. max_power_demand: The component is allowed to ask the Soyosource to feed 900W to the grid.

[syssi]

No change needed here if your smartmeter is able to provide more than 1 sensor update per 20 seconds.

[koosoli]

No change needed here if your smartmeter is able to provide more than 1 sensor update per 20 seconds.

ok, perfect. That sensor should update every 10 seconds.

Perfect, then I think I am ready to flash:

substitutions:
  name: soyosource-gtn-virtual-meter
  device_description: "Monitor a Soyosource GTN and control the power output on demand both via RS485"
  external_components_source: github://syssi/esphome-soyosource-gtn-virtual-meter@main
  tx_pin: GPIO1
  rx_pin: GPIO3

esphome:
  name: soyo1
  friendly_name: soyo1
  comment: ${device_description}
  project:
    name: "syssi.esphome-soyosource-gtn-virtual-meter"
    version: 2.1.0

esp8266:
  board: d1_mini_pro

external_components:
  - source: ${external_components_source}
    refresh: 0s


# Enable logging
logger:


ota:
  password: "xxx"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Soyo1 Fallback Hotspot"
    password: "xxx"

captive_portal:


# Enable Home Assistant API
api:
  encryption:
    key: "xxx"

uart:
  - id: uart0
    baud_rate: 4800
    tx_pin: ${tx_pin}
    rx_pin: ${rx_pin}

soyosource_modbus:
  - id: modbus0
    uart_id: uart0
    # flow_control_pin: GPIO12

    # Optional settings
    #
    # The name is used as prefix for some log messages and should
    # help to distinguish between different instances/devices
    name: 1000wsoyo1_inverter

soyosource_virtual_meter:
  - id: virtualmeter0
    soyosource_modbus_id: modbus0

sensor:
  - platform: homeassistant
    id: powermeter0
    name: "Instantaneous Power"
    entity_id: sensor.power_used_w
    filters:
      - throttle_average: 10s

    # The state of this sensor (instantaneous power in watt) is used as source
    power_id: powermeter0

    update_interval: 10s  **-> this is how often my sensor updates, hope this is correct**

soyosource_inverter:
  - id: inverter0
    soyosource_modbus_id: modbus0

binary_sensor:
  - platform: soyosource_inverter
    soyosource_inverter_id: inverter0
    fan_running:
      name: "${name} fan running"

number:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    buffer:
      name: "${name} buffer"
      initial_value: 10
      restore_value: true
    manual_power_demand:
      name: "${name} manual power demand"
      max_value: 900
    max_power_demand:
      name: "${name} max power demand"
      initial_value: 600
      max_value: 900
      restore_value: true
    power_demand_divider:
      name: "${name} power demand divider"
      initial_value: 1
      restore_value: true

sensor:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    power_demand:
      name: "${name} power demand"

  - platform: soyosource_inverter
    soyosource_inverter_id: inverter0
    operation_status_id:
      name: "${name} operation status id"
      id: operation_status_id0
    battery_voltage:
      name: "${name} battery voltage"
    battery_current:
      name: "${name} battery current"
    battery_power:
      name: "${name} battery power"
    ac_voltage:
      name: "${name} ac voltage"
    ac_frequency:
      name: "${name} ac frequency"
    temperature:
      name: "${name} temperature"



switch:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    manual_mode:
      name: "${name} manual mode"
      restore_mode: RESTORE_DEFAULT_ON
    emergency_power_off:
      name: "${name} emergency power off"
      restore_mode: RESTORE_DEFAULT_OFF

text_sensor:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    operation_mode:
      name: "${name} limiter operation mode"

  - platform: soyosource_inverter
    soyosource_inverter_id: inverter0
    operation_status:
      name: "${name} operation status"

[syssi]

I've made some minor fixes:

1. Multiple sensor: sections aren't allowed/possible
2. You have to parameterize the soyosource_virtual_meter component not the power sensor.
3. You have to stick to the NEGATIVE_MEASUREMENTS_REQUIRED method. The default doesn't work for you.

substitutions:
  name: soyosource-gtn-virtual-meter
  device_description: "Monitor a Soyosource GTN and control the power output on demand both via RS485"
  external_components_source: github://syssi/esphome-soyosource-gtn-virtual-meter@main
  tx_pin: GPIO1
  rx_pin: GPIO3

esphome:
  name: soyo1
  friendly_name: soyo1
  comment: ${device_description}
  project:
    name: "syssi.esphome-soyosource-gtn-virtual-meter"
    version: 2.1.0

esp8266:
  board: d1_mini_pro

external_components:
  - source: ${external_components_source}
    refresh: 0s


# Enable logging
logger:


ota:
  password: "xxx"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Soyo1 Fallback Hotspot"
    password: "xxx"

captive_portal:


# Enable Home Assistant API
api:
  encryption:
    key: "xxx"

uart:
  - id: uart0
    baud_rate: 4800
    tx_pin: ${tx_pin}
    rx_pin: ${rx_pin}

soyosource_modbus:
  - id: modbus0
    uart_id: uart0
    # flow_control_pin: GPIO12

    # Optional settings
    #
    # The name is used as prefix for some log messages and should
    # help to distinguish between different instances/devices
    name: 1000wsoyo1_inverter

soyosource_virtual_meter:
  - id: virtualmeter0
    soyosource_modbus_id: modbus0
    power_id: powermeter0
    power_demand_calculation: NEGATIVE_MEASUREMENTS_REQUIRED
    update_interval: 3s

soyosource_inverter:
  - id: inverter0
    soyosource_modbus_id: modbus0

binary_sensor:
  - platform: soyosource_inverter
    soyosource_inverter_id: inverter0
    fan_running:
      name: "${name} fan running"

number:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    buffer:
      name: "${name} buffer"
      initial_value: 10
      restore_value: true
    manual_power_demand:
      name: "${name} manual power demand"
      max_value: 900
    max_power_demand:
      name: "${name} max power demand"
      initial_value: 600
      max_value: 900
      restore_value: true
    power_demand_divider:
      name: "${name} power demand divider"
      initial_value: 1
      restore_value: true

sensor:
  - platform: homeassistant
    id: powermeter0
    name: "Instantaneous Power"
    entity_id: sensor.power_used_w
    filters:
      - throttle_average: 10s

  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    power_demand:
      name: "${name} power demand"

  - platform: soyosource_inverter
    soyosource_inverter_id: inverter0
    operation_status_id:
      name: "${name} operation status id"
      id: operation_status_id0
    battery_voltage:
      name: "${name} battery voltage"
    battery_current:
      name: "${name} battery current"
    battery_power:
      name: "${name} battery power"
    ac_voltage:
      name: "${name} ac voltage"
    ac_frequency:
      name: "${name} ac frequency"
    temperature:
      name: "${name} temperature"

switch:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    manual_mode:
      name: "${name} manual mode"
      restore_mode: RESTORE_DEFAULT_ON
    emergency_power_off:
      name: "${name} emergency power off"
      restore_mode: RESTORE_DEFAULT_OFF

text_sensor:
  - platform: soyosource_virtual_meter
    soyosource_virtual_meter_id: virtualmeter0
    operation_mode:
      name: "${name} limiter operation mode"

  - platform: soyosource_inverter
    soyosource_inverter_id: inverter0
    operation_status:
      name: "${name} operation status"