solar_car_charging.yml

alias: Solar Car Charging
description: Carge vehicle with excess solar production
triggers:
  - trigger: time_pattern
    minutes: /5
    hours: "*"
conditions:
  - condition: sun
    before: sunset
    after: sunrise
  - condition: state
    entity_id: binary_sensor.charge_cable
    state: "on"
actions:
  - variables:
      prev_excess_mwh: >
        {% set production =
        states('sensor.envoy_202418015164_lifetime_energy_production') | float
        %} {% set consumption =
        states('sensor.envoy_202418015164_lifetime_energy_consumption') | float
        %} {% set discharged =
        states('sensor.envoy_202418015164_lifetime_battery_energy_discharged') |
        float %} {{ production - consumption - discharged }}
  - delay: "00:04:00"
  - variables:
      delay_mins: 4
      min_charge_amps: 5
      max_charge_amps: 40
      curr_charge_amps: >
        {{ (states('number.tesla_model_y_charge_current') | float | round) if
        states('switch.tesla_model_y_charge') == 'on' else 0 }}
      curr_excess_mwh: >
        {% set production =
        states('sensor.envoy_202418015164_lifetime_energy_production') | float
        %} {% set consumption =
        states('sensor.envoy_202418015164_lifetime_energy_consumption') | float
        %} {% set discharged =
        states('sensor.envoy_202418015164_lifetime_battery_energy_discharged') |
        float %} {{ production - consumption - discharged }}
      net_excess_wh: "{{ ((curr_excess_mwh - prev_excess_mwh) * 1000000) | round(3) }}"
      excess_solar_amps: "{{ (net_excess_wh / (delay_mins / 60) / 240) | round(1) }}"
      target_excess_solar_amps: 1
      new_charge_amps: "{{ curr_charge_amps + excess_solar_amps - target_excess_solar_amps }}"
      clamped_charge_amps: |
        {% if new_charge_amps < min_charge_amps %}
          0
        {% elif new_charge_amps > max_charge_amps %}
          {{ max_charge_amps }}
        {% else %}
          {{ new_charge_amps | int }}
        {% endif %}
  - choose:
      - conditions:
          - condition: template
            value_template: "{{ clamped_charge_amps == 0 }}"
        sequence:
          - if:
              - condition: state
                entity_id: switch.tesla_model_y_charge
                state: "on"
            then:
              - type: turn_off
                domain: switch
                device_id: fe0dbf51c18955c2b97d525df11ac9ac
                entity_id: switch.tesla_model_y_charge
              - delay: "00:00:05"
              - target:
                  device_id: fe0dbf51c18955c2b97d525df11ac9ac
                  entity_id: number.tesla_model_y_charge_current
                data:
                  value: "{{ max_charge_amps }}"
                action: number.set_value
      - conditions:
          - condition: template
            value_template: "{{ clamped_charge_amps > 0 }}"
        sequence:
          - if:
              - condition: state
                entity_id: switch.tesla_model_y_charge
                state: "off"
            then:
              - type: turn_on
                domain: switch
                device_id: fe0dbf51c18955c2b97d525df11ac9ac
                entity_id: switch.tesla_model_y_charge
          - target:
              device_id: fe0dbf51c18955c2b97d525df11ac9ac
              entity_id: number.tesla_model_y_charge_current
            data:
              value: "{{ clamped_charge_amps }}"
            action: number.set_value
mode: single