Deye: Weird home solar battery quirk

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  • Опубліковано 22 жов 2024

КОМЕНТАРІ • 19

  • @G88gleplex
    @G88gleplex 3 місяці тому +9

    @EEVblog2 On the Port screen, just tick on 'AC Coupled on Grid Side' and this will then use excess energy from the Enphase to change the battery. If you don't have this setting pls ask for a firmware update as it wasn't present on the older ones. Alternatively you can set it for microinverters on the Gen input (even if you don't connect any) and it will do the same.

    • @EEVblog2
      @EEVblog2  3 місяці тому +6

      Oh wow, really? I saw that option, will try it tomorrow. Manual didn't really explain that IIRC.
      I'm adding two extra panels to the the gen port as well.

    • @G88gleplex
      @G88gleplex 3 місяці тому +5

      @@EEVblog2 With both Deye and Sunsynk (same inverter, different interface on the touch screen) they add features and don’t update the manuals. Check out the Sunsynk youtube channel from over the last couple of years and Keith explains so much about the inverter setup. You can basically configure this thing to do any/everything.

  • @WesselLemmer
    @WesselLemmer 3 місяці тому +1

    You could connect the enphase output on to the auxiliary load output for the deye and configure it as a AC coupled inverter input. In that case the enphase export would register as a usable power source so the deye would use it to charge batteries before export. With the enphase set on export you could possibly keep the enphase CTs where they are. But the enphase would have to be set for frequency shifting. Alternatively try changing the load priority on the deye. Some machines I've seen will start consuming grid and charge batteries when it reads export power even if there's no idea what is producing that power.

    • @EEVblog2
      @EEVblog2  3 місяці тому

      Problem is the peak power would be limited to the 5kW of the Deye.

    • @WesselLemmer
      @WesselLemmer 3 місяці тому

      @@EEVblog2 As far as I know the AC coupling feature on the deye isn't that refined so I don't know if it's really recommendable. But no, it wouldn't necessarily limit the power, max continuous AC pass through is 35A and some 1 to 1 ratio for coupling is max. A scenario where 4 gets exported while 4 is loaded backup side is feasible. That said some common failures on them have been the input contactor so take it with a grain of salt. It's probably best to play with the priorities and see if it will start to use the export power for charging.

  • @PhilippeCJR
    @PhilippeCJR Місяць тому

    is there a AC coupled PV inside your house or somewhere

  • @victoroliveroing
    @victoroliveroing 3 місяці тому

    Have you work with Must Inverters?

  • @Robert-S-
    @Robert-S- 3 місяці тому

    Curious, if it doesn't know about the other inverter, how does it know you are exporting power as well as charging the batteries? Seems like the grid current clamp could be relocated differently in the circuit to avoid this quirk?

    • @EEVblog2
      @EEVblog2  3 місяці тому

      If the grid side clamp shows positive current (importing from grid) then it reduces the battery charge current to compensate (Load priority mode)

    • @EEVblog2
      @EEVblog2  3 місяці тому

      So all it cares is, are you importing energy, in which case it does it's best to supply it instead.

    • @Robert-S-
      @Robert-S- 3 місяці тому

      @@EEVblog2 I understand that, but the grid shows a negative value, is there not a way to make it see a 0 value since it isn't actually exporting, and it also isn't drawing from the grid either. Maybe something worthy of a 2nd channel whiteboard video explaining the setup better?

    • @ncot_tech
      @ncot_tech 3 місяці тому

      How do these devices actually offset the power from the grid. Electrically what is going on?
      Or to put it really naievely and completely backwards - how does my kettle "know" to use the batteries in my house and not the grid?
      Can you do a video on this since trying to google it either goes off into impenetrable EE stuff, or involves too much hand waving.
      The inverter in my house knows I'm using 2.4kwh, so what's it do electrically to cancel out the power coming from the grid?

    • @EEVblog2
      @EEVblog2  3 місяці тому +1

      @@Robert-S- It's negative because the Enphase system is exporting excess energy to the grid. It is corrrect.

  • @eebaker699
    @eebaker699 3 місяці тому +1

    I like the short videos Dave. I'd like to see more of these please.
    Keep up the good work.😊

  • @electron-1979
    @electron-1979 3 місяці тому +1

    I'm not watching, coz we told you!
    You can't winge about cheap shit!