ferroamp - charge or discharge battery sensor with home assistant and nordpool

configuration.yaml

binary_sensor:
  - platform: template
    sensors:
      bs_charge_ferroamp_battery:
        friendly_name: Charge Ferroamp Battery
        value_template: >-
          {% set today=state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','today') %}  
          {% if ((state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','tomorrow') | count) == 0)  or (state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','tomorrow')[0] == None)  %}
            {% set array = today %}
          {% else %}
            {% set tomorrow=state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','tomorrow') %}
            {% set array = today + tomorrow %}
          {% endif %}
          {% set current_price=states('sensor.nordpool_kwh_se4_sek_2_10_025') %}
          {% set max=state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','max') %}
          {% set min=state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','min') %}
          {% set five_lowest_bp=(array | sort)[4] %}
          {% if ((current_price | float) <= (five_lowest_bp | float)) %}
            True
          {% else %}
            False
          {% endif %}
      bs_discharge_ferroamp_battery:
        friendly_name: Discharge Ferroamp Battery
        value_template: >-
          {% set easee_cons_daily=(states('sensor.easee_energy_daily'))|float%}
          {% set easee_cons_hourly=(states('sensor.easee_energy_hourly'))|float%}
          {% set energy_cons_daily=(states('sensor.load_energy_consumed_daily'))|float %}
          {% set energy_cons_hourly=(states('sensor.load_energy_consumed_hourly'))|float %}
          {% set easee_cons_daily_lp=(state_attr('sensor.easee_energy_daily','last_period'))|float %}
          {% set easee_cons_hourly_lp=(state_attr('sensor.easee_energy_hourly','last_period'))|float %}
          {% set energy_cons_daily_lp=(state_attr('sensor.load_energy_consumed_daily','last_period'))|float %}
          {% set energy_cons_hourly_lp=(state_attr('sensor.load_energy_consumed_hourly','last_period'))|float %}
          {% set batt_soc=states('sensor.ferroamp_eso_19110078_state_of_charge')|float %}
          {% set current_hour=(now().hour)|int %}
          {% set hours_left=(24-now().hour)|int %}
          {% set usable_battery_energy=((states('sensor.ferroamp_eso_19110078_state_of_charge')|float - 10)/100 * 10) | round(1) %}     
          {% set calc_battery_time=(usable_battery_energy/(((energy_cons_daily - easee_cons_daily)/current_hour + ((energy_cons_daily_lp - easee_cons_daily_lp)/24))/2))|round(0,'ceil') %}
          {% set nordpool_today=state_attr('sensor.nordpool_kwh_se4_sek_2_10_025','today') %}
          {% set current_price=states('sensor.nordpool_kwh_se4_sek_2_10_025') %}
          {% if usable_battery_energy <=0 %}
            False
          {% else %}
            {% if (hours_left-calc_battery_time) > 0 %}
              {% set price_breakpoint=(nordpool_today[current_hour:24]|sort)[(nordpool_today[current_hour:24]|count-calc_battery_time)] %}
            {% else %}
              {% set price_breakpoint=(nordpool_today[current_hour:24]|sort)[0] %}
            {% endif %}
            {% if (current_price | float) >= (price_breakpoint | float) %}
              True
            {% else %}
              False
            {% endif %}          
          {% endif %}
          #-------------------------------------------
          #easee_cons_daily......................: {{easee_cons_daily}}
          #easee_cons_hourly.....................: {{easee_cons_hourly}}
          #energy_cons_daily.....................: {{energy_cons_daily}}
          #energy_cons_hourly....................: {{energy_cons_hourly}}
          #easee_cons_daily_lp...................: {{easee_cons_daily_lp}}
          #easee_cons_hourly_lp..................: {{easee_cons_hourly_lp}}
          #energy_cons_daily_lp..................: {{energy_cons_daily_lp}}
          #energy_cons_hourly_lp.................: {{energy_cons_hourly_lp}}
          #batt_soc..............................: {{batt_soc}}
          #current_hour..........................: {{current_hour}}
          #hours_left............................: {{hours_left}}
          #usable_battery_energy.................: {{usable_battery_energy}}
          #calc_battery_time.....................: {{calc_battery_time}}
          #current_price.........................: {{current_price}}
          #price_breakpoint......................: {{price_breakpoint}}
          #nordpool_today........................: {{nordpool_today}}
          #nordpool_today[current_hour:24........: {{nordpool_today[current_hour:24]}}
          #(nordpool_today[current_hour:24)|sort.: {{(nordpool_today[current_hour:24])|sort}}

This binary sensor now requires integrations from Easee/NordPool/Ferroamp and the use of utility meter in HomeAssistant to work
use at own risk ;)

utility_meter:
  easee_energy_hourly:
    source: sensor.easee_lifetime_energy
    cycle: hourly
  easee_energy_daily:
    source: sensor.easee_lifetime_energy
    cycle: daily
  easee_energy_monthly:
    source: sensor.easee_lifetime_energy
    cycle: monthly
  load_energy_consumed_hourly:
    source: sensor.ferroamp_load_energy_consumed
    cycle: hourly
  load_energy_consumed_daily:
    source: sensor.ferroamp_load_energy_consumed
    cycle: daily
  load_energy_consumed_monthly:
    source: sensor.ferroamp_load_energy_consumed
    cycle: monthly