A blueprint for home-assistant to turn on and off your inverter when your dynamic price goes below or above zero

turn-on-off-inverter-dynamic-price.yaml

blueprint:
  name: "Energy: Negative Price, Inverter Off"
  description: Turn off the inverter when the electricity price is below 0.

  domain: automation
  input:
    electricity_price_entity:
      name: Electricity Price Entity
      description: The entity ID of the electricity price sensor.
      selector:
        entity:
          domain: sensor
    pv_inverter:
      name: Inverter power controller
      description: The entity ID of the inverter to regulate power
      selector:
        entity:
          domain: number
    above_price:
      name: Above price selector.
      description: Select the price whish will be the treshold to turn  your inverter.
      default: 0.00
      selector:
        number:
          min: -0.50
          max: 0.99
          unit_of_measurement: €
          mode: box
    below_price:
      name: Below price selector.
      description: Select the price whish will be the treshold to turn OFF your inverter.
      default: 0.00
      selector:
        number:
          min: -0.50
          max: 0.99
          unit_of_measurement: €
          mode: box
trigger:
  - platform: numeric_state
    entity_id: !input electricity_price_entity
    below: !input below_price
    id: below
  - platform: numeric_state
    entity_id: !input electricity_price_entity
    above: !input above_price
    id: above
action:
  - choose:
      - conditions:
          - condition: trigger
            id:
              - below
        sequence:
          - service: number.set_value
            data:
              value: "0"
            target:
              entity_id: !input pv_inverter
      - conditions:
          - condition: trigger
            id:
              - above
        sequence:
          - service: number.set_value
            data:
              value: "100"
            target:
              entity_id: !input pv_inverter
mode: single