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Inverter idle consumption in off grid load calculations

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  • Inverter idle consumption in off grid load calculations

    I've just upgraded my inverter to an Aims 6000w Pure Sine split phase unit. Looking at the specs I noticed the idle consumption is listed at 76.8 watts. I'm looking for some input on the proper way to include the idle consumption in a daily load analysis. I have the 24v unit, running off a 430ah bank. This is in a weekend camp with calculated daily watt usage at 3100 watts, not including inverter idle consumption. Thanks.

  • #2
    76.8w x 24hr = 1843.2wh That's enough power to run a pre-energy star Fridge.

    It's also 2/3 of your current load, which is now up to 4943.2wh.
    Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    solar: http://tinyurl.com/LMR-Solar
    gen: http://tinyurl.com/LMR-Lister

    Comment


    • #3
      So just tack the idle number to the total? I wasn't sure if that idle number was as constant load, or if it changed/diminished when more load was demanded from the inverter. This unit has a power saver mode (29 watt idle draw), but it needs 50 watts of load to wake it up. In the evenings with only a couple LED lights on I assume the inverter would go into sleep mode, and I'd be in the dark.

      Originally posted by Mike90250 View Post
      76.8w x 24hr = 1843.2wh That's enough power to run a pre-energy star Fridge.

      It's also 2/3 of your current load, which is now up to 4943.2wh.

      Comment


      • #4
        That idle is always there, added to what ever you are consuming, PLUS when you consume 100w and you have 90% eff inverter, there is another 10W left warming the inverter, actually using 110w.
        Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
        || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
        || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

        solar: http://tinyurl.com/LMR-Solar
        gen: http://tinyurl.com/LMR-Lister

        Comment

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