Get daily energy from a power sensor

Configuration
1

This sensor allows me to know the istantaneous power drawn from the grid. How can I get the daily energy from this sensor? I tried to use the Total Daily Energy Sensor component but it requires an id which I don’t have

sensor:
  - platform: template
    sensors:
      prelievo_istantaneo_corrente:
        friendly_name: Prelievo istantaneo Chint
        device_class: power
        value_template: >
          {% set linea = states('sensor.esp32_chint_potenza_istantanea')|int(0)
          %} {% if linea < 0 %}
              {{ 0 - linea }}
          {% else %} {{ 0 | int }} {% endif %}
        unit_of_measurement: W
2

Is this in esphome ? Total Daily Energy Sensor is an esphome integration

If not, use this:

or install this, and it does it all for you:

3

The original sensor (sensor.esp32_chint_instantaneous_power) takes data from the registers of a Meter Chint through an Esp32 microcontroller in EspHome.
This register returns both positive and negative instantaneous power (feed to grid/puchased from grid).
I created a custom yaml file inside the packages folder in which, with the above code, I get two sensors, one for instantaneus purchased power and one for instantaneus feed power (named Prelievo istantaneo Chint and Immissione istantanea Chint).
I used Prelievo istantaneo Chint sensor in Integration - Riemann sum integral but I get som incredible data, as if in one day I purchased about 1.600 Wh :thinking:
Actually my daily withdrawals from the grid are much lower, around 1 to 20 Wh (verified by the electricity distributor)

4

You can use the Total Daily Energy Sensor in esphome, you need to use the id from the power entity in esphome, not ha.

Can you share your esphome code

5 
esphome:
  name: "chint-meter"
  friendly_name: Esp32

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:
  level: verbose
  baud_rate: 0

#web_server:
  #port: 80

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

ota:
  password: "xxxxx"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
 
  #manual_ip:
    #static_ip: 192.168.1.234
    #gateway: 192.168.1.254
    #subnet: 255.255.255.0
    #dns1: 192.168.1.254
    #dns2: 8.8.4.4

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esp32 Fallback Hotspot"
    password: "xxxxx"

captive_portal:
###
uart:
  id: mod_bus
  tx_pin: 03
  rx_pin: 01
  baud_rate: 9600
  stop_bits: 1

modbus:
  flow_control_pin: 5
  id: modbus1

modbus_controller:
    address: 0x001
    modbus_id: modbus1
    update_interval: 1s
    setup_priority: -10

sensor:
 - platform: modbus_controller
   id: chint_voltage
   name: "Chint Tensione"
   address: 0x2000
   unit_of_measurement: "V" ## for any other unit the value is returned in minutes
   register_type: holding
   value_type: FP32
   accuracy_decimals: 2
   filters:
     - multiply: 1

 - platform: modbus_controller
   id: chint_current
   name: "Chint Corrente"
   address: 0x2002
   unit_of_measurement: "A" ## for any other unit the value is returned in minutes
   register_type: read
   value_type: FP32
   accuracy_decimals: 2
   filters:
     - multiply: 1

 - platform: modbus_controller
   id: chint_power
   name: "Chint Potenza istantanea"
   address: 0x2004
   unit_of_measurement: "W" ## for any other unit the value is returned in minutes
   state_class: "measurement"
   register_type: read
   value_type: FP32
   accuracy_decimals: 2
   filters:
     - multiply: 1000

 - platform: modbus_controller
   id: chint_frequency
   name: "Chint Frequenza Rete"
   address: 0x200E
   unit_of_measurement: "Hz" ## for any other unit the value is returned in minutes
   register_type: read
   value_type: FP32
   accuracy_decimals: 2
   filters:
     - multiply: 1

 - platform: modbus_controller
   id: chint_energy_sold
   name: "Chint Energia ceduta"
   address: 0x4000
   unit_of_measurement: "KWh" ## for any other unit the value is returned in minutes
   register_type: read
   value_type: FP32
   accuracy_decimals: 2
   filters:
     - multiply: 1
 
 - platform: modbus_controller
   id: chint_energy_purchased
   name: "Chint Energia acquistata"
   address: 0x400A
   unit_of_measurement: "Wh" ## for any other unit the value is returned in minutes
   register_type: read
   value_type: FP32
   accuracy_decimals: 3
   filters:
     - multiply: 1000   

 - platform: modbus_controller
   id: chint_reactive_power
   name: "Chint Potenza reattiva"
   address: 0x2004
   unit_of_measurement: "Var" ## for any other unit the value is returned in minutes
   register_type: read
   value_type: FP32
   accuracy_decimals: 2
   filters:
     - multiply: 1000
6

Try adding this to the bottom of your sensors in esphome:

- platform: total_daily_energy
    name:  Chint Total Daily Energy
    power_id: chint_power
    id: totaldailyenergy
    filters:
        - multiply: 0.001
    unit_of_measurement: kWh
    icon: mdi:clock-alert
    device_class: energy
1 Like
7

I divided the power sensor into two sensors, negative and positive.
So I used these two sensors for Total_daily_energy.
Then I created two sensors for yesterday’s energy using Time.
Do you think it can work?

 - platform: template
   name: Prelievo Rete Chint
   id: prelievorete
   lambda: |-
      if (id(chint_power).state > 0) {
        return 0;
      } else {
        return abs(id(chint_power).state) ;
      }
   accuracy_decimals: 1
   unit_of_measurement: W
   icon: "mdi:flash-circle"
   update_interval: 1s

 - platform: template
   name: Immissione Rete Chint
   id: immissionerete
   lambda: |-
      if (id(chint_power).state < 0) {
        return 0;
      } else {
        return abs(id(chint_power).state) ;
      }
   accuracy_decimals: 1
   unit_of_measurement: W
   icon: "mdi:flash-circle"
   update_interval: 1s

 - platform: total_daily_energy
   name: Energia prelevata Chint
   power_id: immissionerete
   filters:
    - multiply: 0.001
   unit_of_measurement: KWh
   accuracy_decimals: 2
   icon: mdi:clock-alert
   device_class: energy

 - platform: total_daily_energy
   name: Energia immessa Chint
   power_id: prelievorete
   filters:
    - multiply: 0.001
   unit_of_measurement: KWh
   accuracy_decimals: 2
   icon: mdi:clock-alert
   device_class: energy

 - platform: template
   name: Energy Purchased Yesterday
   id: purchased_yesterday
   unit_of_measurement: Wh
   accuracy_decimals: 0
   icon: mdi:lightning-bolt

 - platform: template
   name: Energy Feed Yesterday
   id: feed_yesterday
   unit_of_measurement: Wh
   accuracy_decimals: 0
   icon: mdi:lightning-bolt

time:
  - platform: homeassistant
    on_time:
      - seconds: 59
        minutes: 59
        hours: 23
        then:
          - sensor.template.publish:
              id: purchased_yesterday
              state: !lambda |-
                return id(prelievorete).state;
          - sensor.template.publish:
              id: feed_yesterday
              state: !lambda |-
                return id(immissionerete).state;
8

Should do, give it a try

9

It seems to work but the state of the sensor yesterday remains only a short time, then it becomes unknown.