Multiple utility_meter tariffs

Configuration
1

I have the following sensors that I use to track my day/night EV kwh usage

ev_daily_energy:
  source: sensor.shellyem_5e26f6_channel_2_energy
  name: EV Energy Today
  cycle: daily
  tariffs:
    - peak
    - offpeak
monthly_ev_energy:
  source: sensor.shellyem_5e26f6_channel_2_energy
  cycle: monthly
  tariffs:
    - peak
    - offpeak

The peak and offpeak are set by this:

- id: '1652831843092'
  alias: Energy - Switch tariff
  description: ''
  trigger:
  - platform: time
    at: 09:00:00
    variables:
      tariff: peak
  - platform: time
    at: 00:00:00
    variables:
      tariff: offpeak
  condition: []
  action:
  - service: select.select_option
    target:
      entity_id: select.daily_energy
    data:
      option: '{{ tariff }}'
  - service: select.select_option
    target:
      entity_id: select.monthly_energy
    data:
      option: '{{ tariff }}'
  mode: single

I would like to add another tariff for solar values:

ev_daily_energy:
  source: sensor.shellyem_5e26f6_channel_2_energy
  name: EV Energy Today
  cycle: daily
  tariffs:
    - peak
    - offpeak
    - solar

But I am unsure how to switch to that tariff in the code.
I am thinking of using something along the lines of if sensor.openevse_state = Charging and {{ ''solar'' if states(''sensor.current_solar_generation'') | int > 0}}' but not sure how to create the automation that can toggle between all 3 tariffs.

Anyone more versed in yaml can please assist?