Feature request: show where battery is charging from

[molekuul]

In the optimization results, you see when the battery is charging, however you don’t see where the charging energy is provided by. Please add a output showing if the battery charging get it’s energy from the PV or from the GRID. This makes it easier to automate battery charging when you have a hybrid inverter, such as the growatt inverters.

[radim2tej]

For battery management I use the following sensor:

sensor:
  - platform: template
    sensors:
      emhass_battery_control:
        unique_id: emhass_battery_control
        value_template: >-
          {% if states('sensor.p_batt_forecast') | float < -300 and states('sensor.p_grid_forecast') | float > 300.0 %}  
            {{ 'charge' }}
          {% elif states('sensor.p_batt_forecast') | float > 300.0 and states('sensor.p_grid_forecast') | float < -300.0 %}
            {{ 'discharge' }}
          {% elif states('sensor.p_batt_forecast') | float == 0 %}
            {{ 'idle' }}
          {% else %} 
            {{ 'normal' }}                          
          {% endif %}

The automation then controls charging up to the SOC maximum, discharging up to the SOC maximum, not using the battery and normal operation. I use Goodwe GW10k-ET hybrid inverter.

[nejcsu]

How do you instruct the inverter to go into charge/discharge/idle? I use a Deye inverter, and it looks like they only support six different time periods, where you can set charge/discharge parameters and limits.

[radim2tej]

I'm using a Goodw GW10K-ET and an experimental integration that can charge and discharge in economy inverter mode. I solve the idle state by setting the depth of discharge to 95%. Since I don't know if the changes are written to the internal eeprom of the inverter, a check is made before each change to see if the change is necessary.

alias: EMHASS battery control
description: use battery by EMHASS
triggers:
  - trigger: state
    entity_id:
      - sensor.emhass_battery_control
  - trigger: state
    entity_id:
      - sensor.battery_state_of_charge
  - trigger: state
    entity_id:
      - sensor.soc_batt_forecast
  - trigger: state
    entity_id:
      - sensor.final_sell_kwh
conditions: []
actions:
  - alias: charge or idle battery_control for depth of discharge
    if:
      - condition: or
        conditions:
          - condition: state
            entity_id: sensor.emhass_battery_control
            state: charge
          - condition: state
            entity_id: sensor.emhass_battery_control
            state: idle
    then:
      - alias: disabling battery usage in charge and idle battery_control
        if:
          - alias: battery depth of discharge is below 95%
            condition: numeric_state
            entity_id: number.goodwe_maximum_vybiti_v_siti
            above: 5
        then:
          - alias: disable battery usage by setting the depth of discharge to 95%
            action: number.set_value
            metadata: {}
            data:
              value: 5
            target:
              entity_id: number.goodwe_maximum_vybiti_v_siti
    else:
      - alias: enable battery usage in normal and discharge battery_control
        if:
          - alias: battery depth of discharge is above 20%
            condition: numeric_state
            entity_id: number.goodwe_maximum_vybiti_v_siti
            below: 80
        then:
          - alias: enable battery use by setting the discharge depth to 20%
            action: number.set_value
            metadata: {}
            data:
              value: 80
            target:
              entity_id: number.goodwe_maximum_vybiti_v_siti
  - alias: overflow control at negative prices
    if:
      - condition: numeric_state
        entity_id: number.final_sell_kwh
        below: 0.2
    then:
      - alias: enable grid supply control
        if:
          - alias: supply control is off
            condition: state
            entity_id: switch.goodwe_rizeni_dodavky_do_site
            state: "off"
        then:
          - alias: mains supply control switched on
            entity_id: switch.goodwe_rizeni_dodavky_do_site
            action: homeassistant.turn_on
      - alias: disable mains overflows
        if:
          - alias:supply limit is not 0
            condition: numeric_state
            entity_id: number.goodwe_limit_dodavky_do_site
            above: 0
        then:
          - alias: set site delivery limit
            action: number.set_value
            metadata: {}
            data:
              value: 0
            target:
              entity_id: number.goodwe_limit_dodavky_do_site
    else:
      - alias: control discharge battery_control
        if:
          - condition: state
            entity_id: sensor.emhass_battery_control
            state: discharge
        then:
          - alias: enable grid supply control
            if:
              - alias: supply control is off
                condition: state
                entity_id: switch.goodwe_rizeni_dodavky_do_site
                state: "off"
            then:
              - alias: supply control to the network is switched on
                entity_id: switch.goodwe_rizeni_dodavky_do_site
                action: homeassistant.turn_on
          - alias: limit power to grid to reserved/allowed
            if:
              - alias: supply limit is not 6400W
                condition: template
                value_template: >-
                  {{ states('number.goodwe_limit_dodavky_do_site') | int(0) !=
                  6400 }}
            then:
              - alias: set site supply limit
                action: number.set_value
                metadata: {}
                data:
                  value: 6400
                target:
                  entity_id: number.goodwe_limit_dodavky_do_site
        else:
          - alias: there are no negative prices or discharges to the grid, turn off control (for GoodWe reduce consumption by half to a third); cancel this section if the reserved/allowed power to the grid is greater than the kWp output of the panels
            if:
              - alias: supply management is switched on
                condition: state
                entity_id: switch.goodwe_rizeni_dodavky_do_site
                state: "on"
            then:
              - alias: switching off the network supply control
                entity_id: switch.goodwe_rizeni_dodavky_do_site
                action: homeassistant.turn_off
  - alias: charge battery_control to recharge the battery
    if:
      - condition: state
        entity_id: sensor.emhass_battery_control
        state: charge
      - condition: numeric_state
        entity_id: sensor.battery_state_of_charge
        below: sensor.soc_batt_forecast
    then:
      - alias: enable battery charging
        if:
          - alias: inverter is in echo_charge mode
            condition: state
            entity_id: select.goodwe_provozni_rezim_stridace
            state: eco_charge
        then: []
        else:
          - alias: enable battery charging by eco_charge mode
            action: select.select_option
            metadata: {}
            data:
              option: eco_charge
            target:
              entity_id: select.goodwe_provozni_rezim_stridace
    else:
      - alias: discharge battery_control to discharge the battery
        if:
          - condition: state
            entity_id: sensor.emhass_battery_control
            state: discharge
          - condition: numeric_state
            entity_id: sensor.battery_state_of_charge
            above: sensor.soc_batt_forecast
        then:
          - alias: enable battery discharge by eco_discharge mode
            if:
              - alias: inverter is in eco_discharge mode
                condition: state
                entity_id: select.goodwe_provozni_rezim_stridace
                state: eco_discharge
            then: []
            else:
              - alias: inverter in eco_discharge mode
                action: select.select_option
                metadata: {}
                data:
                  option: eco_discharge
                target:
                  entity_id: select.goodwe_provozni_rezim_stridace
        else:
          - alias: disable battery charging/discharging by general mode
            if:
              - alias: inverter is in general mode
                condition: state
                entity_id: select.goodwe_provozni_rezim_stridace
                state: general
            then: []
            else:
              - alias: inverter in general mode
                action: select.select_option
                metadata: {}
                data:
                  option: general
                target:
                  entity_id: select.goodwe_provozni_rezim_stridace
mode: single