I am in the process of building this in my system. I want to add a couple of extra features. such as minimum run time, the ability to run a few minutes each hour over night (for skimming) and some other bits an pieces.

  • Bluetreefrog@lemmy.world
    link
    fedilink
    English
    arrow-up
    1
    ·
    1 year ago

    I did something like this. I buy my electricity at wholesale prices, and the supplier has an API with price predictions, so I used node-red to compare insolation forecasts, and price forecasts to work out what time-blocks to run the pool pump (when solar high, or price low, or cheapest forecast times to achieve a minimum number of hours per day).

    Not quite the same as home automation, but there’s a home-made renewable energy system community too:

    https://lemmy.world/c/hmres

    !hmres@lemmy.world

    Home Made Renewable Energy Systems

    • LiquidSunset@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      1 year ago

      Are you using Amber Electric? Would you be willing to share your Node-Red flows? I’m trying to come up with some automation for the car charger based on price predictions but it’s been doing my head in…

        • LiquidSunset@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          1 year ago

          Not yet. The plan is to get solar and battery but the installers I’ve spoken to have been somewhat unhelpful. For now we’re just on the wholesale pricing.

          • Bluetreefrog@lemm.ee
            link
            fedilink
            English
            arrow-up
            1
            ·
            1 year ago

            Lemmy.world seems to be groaning under the load of new users. Did you get my DM with the first flow? It never confirmed that it sent.

            • LiquidSunset@lemmy.world
              link
              fedilink
              English
              arrow-up
              1
              ·
              1 year ago

              No DM yet! In fact I can only see this comment in my Inbox, not in the main discussion thread. Teething trouble!