energy_smarts.yaml

sensor:
  - platform: statistics
    name: Average power to grid
    entity_id: sensor.solaredge_m1_ac_power
    state_characteristic: average_linear
    max_age:
      minutes: 1

input_number:
  demand_warning_threshold:
    name: Demand Warning Threshold
    min: 0
    max: 1
    step: 0.01
    mode: box

template:
  - binary_sensor:
      - name: Electricity Import Exceeds Max Demand
        state: >-
          {% if states('select.electricity_imported_demand') in ['low-demand','high-demand'] %}
            {% set min_remaining = 30 - now().minute if now().minute < 30 else 60 - now().minute %}
            {% set current_usage = (states('sensor.electricity_imported_demand_high_demand') + states('sensor.electricity_imported_demand_low_demand')) | float(0) * 1000 %}
            {% set forecast_usage = states('sensor.average_power_to_grid')|float(0) / -30 %}
            {% set threshold = states('input_number.demand_warning_threshold')|float(0.9) %}
            {{ current_usage + forecast_usage * min_remaining > states('sensor.electricity_demand_max')|float(0) * 1000 * threshold }}
          {% else %}
            False
          {% endif %}