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  1. #31
    Join Date
    Jan 2008
    Location
    Nth Est Victoria, Australia
    Posts
    605

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    Kungsleden, after all the problems with grid power this early into summer why on earth would you consider relying on the grid (power supply). The weird thing about all of this is that people are paying more for a failing last century power technology. I would have thought that the long term economical choice would be to invest in a stand alone system (power producing technology,batteries and inverter).Or organise your neighbours/community to create a power supply co-op.
    Check out the Yackandanda website (TRY).

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  3. #32
    Join Date
    Sep 2014
    Location
    Australia
    Posts
    660

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    FWIW, there is (or was) a manufacturer that did make inverter splits that would run directly from solar, no grid and no battery. They were only pretty small units though, might get away with one to cool a small bedroom. I just had a quick google, but cant find them right now.

    I did look closely at the units, and the were a DC inverter, and the solar power fed straight into the unit. I cant recall what the voltage, but given they only needed half a dozen panels maybe it was realm of 120-150VDC. I would imaging they can probably take a bit more, but I guess you call always series-parallel 2 strings.

    Given the number of 1kw systems you can pick up on gumtree now for a few hundred dollars, it may actually be viable if you have the space for the panels.

  4. #33
    Join Date
    Jun 2012
    Location
    Mornington Peninsula, Vic
    Posts
    5

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    I run a 3.5 Fujitsu Inverter AC in my tiny house. (About the same area as a big living room). Fully off grid, I have 4.8 Kw useable per day. 1.6Kw PV.
    I usually aim for about 5/8 degrees below ambient and the unit pulls about 900W when starting and drops to about 350W intermittently.
    So with good sunshine I can run it and still charge my batts. Reluctant to run it after sunset unless sure I have a good sun next day.
    I bought a good Honda gennie as backup, but the Charge controller/inverter wont play with it.

  5. #34
    Join Date
    Aug 2016
    Location
    Brisbane
    Age
    57
    Posts
    1,311

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    If anyone is still looking at this thread, there are now solar powered DC air conditioners. With either battery or hybrid to increase working hours. I have no idea how good they are. Just letting you know they exist.
    My YouTube channel: https://youtu.be/2_KPRN6I9SE

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