Predbat - MyEnergi Eddi

Hi All - I have an Eddi, been reliant on it for a couple of years for free hot water in summer months, we have reached the (read my own point in the year here) tipping point where I flick it to normal and turn off my gas boiler. I do accept there’s much debate around gas prices vs. export rates per kWh but I prefer to use ‘free’ sun as it gives me a warm feeling etc.

I’ve read the Predbat documentation and I’m struggling to see how to set it up, has anyone used the iBoost settings and have it working and crucially would share their configuration with me? Also as I’m on agile is it feasible to use low energy rates and solar?

Thanks ! :

I have HA, Predbat and an eddi. But tbh I have barely used the eddi since it was installed, and have not bothered integrating it with Predbat.

But I did, for a while, use the eddi for free hot water, back when I used to get regular free power from Power-ups. Here's the automation I used, just in case it helps.

alias: Set Eddi to Boost when import rate is 0
description: Turn on Eddi, start manual boost for 2 hours
mode: single
triggers:
  - entity_id:
      - predbat.rates
    for:
      hours: 0
      minutes: 0
      seconds: 3
    below: 0.1
    alias: When Predbat import rate <0.1p for 3 secs
    trigger: numeric_state
conditions:
  - alias: Uptime is more than 1 min
    condition: template
    value_template: >-
      {{ as_timestamp(now()) - as_timestamp(states.sensor.uptime_174.state) >=
      60 }}
actions:
  - metadata: {}
    data:
      option: Normal
    target:
      entity_id: select.myenergi_eddi_operating_mode
    alias: Turn on Eddi
    action: select.select_option
  - alias: Boost Eddi for 2 hours
    data:
      target: Heater 1
      time: 120
    target:
      entity_id: select.myenergi_eddi_operating_mode
    action: myenergi.myenergi_eddi_boost
  - metadata: {}
    data:
      message: Eddi Boost has started
      title: EDDI
    alias: Notify phone that Boost has started
    action: notify.mobile_app_XXXXXXX
  - metadata: {}
    data:
      message: Eddi has boosted for 2 hours
      title: EDDI
    alias: Notify Discord that Boost has started
    action: notify.discord_notification
  - delay:
      hours: 2
      minutes: 0
      seconds: 0
      milliseconds: 0
  - metadata: {}
    data:
      option: Stopped
    target:
      entity_id: select.myenergi_eddi_operating_mode
    alias: "Turn off Eddi "
    action: select.select_option
  - metadata: {}
    data:
      message: Eddi has been turned off
      title: EDDI
    alias: Notify phone that Eddi has been turned off
    action: notify.mobile_app_XXXXXXX
  - metadata: {}
    data:
      message: Eddi has been turned off
      title: EDDI
    alias: Notify Discord that Boost has been turned off
    action: notify.discord_notification

Northwarks I’ve read the Predbat documentation and I’m struggling to see how to set it up, has anyone used the iBoost settings and have it working and crucially would share their configuration with me? Also as I’m on agile is it feasible to use low energy rates and solar?

Have you got predbat up and running and your question is about setting up iboost within predbat, or do you first need help with setting up predbat? If you follow the installation guide (there's a short and long version) it should be fairly comprehensive, and if you get stuck, do ask with specific questions.

Yes Predbat absolutely can work out your solar and battery management on Agile. I (and others) did just that for over a year, only swapping tariffs in January after Agile was persistently expensive.
I'm still on Cosy with Predbat, the Agile rates are not really low enough overnight to make it worth changing back

geoffreycoan yeah Predbat is running fine, this is about how to configure iBoost - I spent all of 2024 on Flux import/export, I’m on Agile at the minute, Predbat Compare and Octoprice give me different results in terms of the best tariff so still very much undecided on best approach for the Summer.