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Thread: Jay see 1997 GU build up

  1. #571
    Expert Mickhead's Avatar
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    I have a kings 120 watt solar panel on the roof running thru a MPPT kings controller. Supacentre is not bullshitting their specs like a lot of ebay sellers, it is 120 watts and it is MPPT and it is a fair price. Solar panels… 1 square metre of direct sun light = 1000 watts. At 18% efficiency a typical 1 x1 metre solar panel will max out at 180 watts. Remember this when you buy off ebay.
    My kings setup runs my second shitty lead acid under bonnet battery with VSR which powers a crappy aldi 40 lt fridge all year round, with room to spare for the occasional travel buddy morning tea. Weekday driven about 50k to work and back😀

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    jay see (20th January 2022)

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    How do you validate these numbers? Solar density across Australia varies from 300 - 600w/m2 density from what I understand, and the 1000w/m2 is achieved in outer space and used as lab rating. For max efficiency I work on 600w/m2 and 16% efficiency, simply as a tolerance, as the latest NASA panels are pushing 22% but we are not able to access them, plus the panels are quickly de-rated at temps above 25 degC and the number of hours solar impact perpendicular to the panel. The MPPT controllers certainly assist with the optimisation, I just think the output is a lot less than perceived, hence why my panel area and watt output is high for the 6amp load- intermittent - from the 60L engel.

    Happy to stand corrected, but from a marketing perspective, there isn't a marketing guy out there that will sell something based on real numbers, more on the maximum possible, even if its unachievable.

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    jay see (20th January 2022)

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    Legendary jay see's Avatar
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    Cheers guys.

    Sorry forgot to mention the battery. It's a 140ah AGM.

    I'm looking at this.

    https://www.supercheapauto.com.au/p/...=en_AU&start=2

    If needed for a longer stay I've got a 160 watt folding unit.

    Sent from my CPH1921 using Tapatalk
    12/97 GEE YOU
    4.5lt Gas blower. Lots of mods to come.....all in good time.

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    Hodge (21st January 2022)

  8. #574
    ......... MB's Avatar
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    @jay see Mate, worth checking out what @Cremulator Legend has done/did


    Sent from my iPhone using Tapatalk

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    ......... MB's Avatar
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    Jay see 1997 GU build up

    Usage needs: You’re not currently touring John Mate, simply running a little fridge if read correctly? For this purpose I’m not a big fan of taking up full, half or even quarter open roof rack space as guaranteed Mrs See will book you in for a 2.4x1.2m Ikea pickup oneday soon…..all of us
    Please do have a gander at @Cremulator ‘s great concept, personally ran 2 x 120W easily removable yet solid panels under my DX ute rack similar many years ago (nowhere near as refined) yet still used to make ice-cubes/blocks’ in an old Trailblazer 60L freezer for Margarita Murray River afternoons on 2 x 120ah wet batteries


    Sent from my iPhone using Tapatalk

  10. #576
    Expert Cremulator's Avatar
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    Quote Originally Posted by MB View Post
    @jay see Mate, worth checking out what @Cremulator Legend has done/did


    Sent from my iPhone using Tapatalk
    I think @MB is referring to the table slide I made for my roof rack, but could certainly house a rigid solar panel.
    http://www.nissanpatrol.com.au/forum...d.php?p=828198

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    MB (21st January 2022)

  12. #577
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    Quote Originally Posted by jay see View Post
    Cheers guys.

    Sorry forgot to mention the battery. It's a 140ah AGM.

    I'm looking at this.

    https://www.supercheapauto.com.au/p/...=en_AU&start=2

    If needed for a longer stay I've got a 160 watt folding unit.

    Sent from my CPH1921 using Tapatalk
    That's the very panel that I've got on my roof rack.


    Sent using Pixel 6
    2005 TD42TI

  13. The Following 2 Users Say Thank You to Hodge For This Useful Post:

    jay see (21st January 2022), MB (21st January 2022)

  14. #578
    Legendary jay see's Avatar
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    Thanks guys.

    Mb as good as the slide system is I don't think I'll go that way.

    Another question.

    I'm currently using a basic redarc sbi12 isolator, what's the go if I install the panel, will both be feeding the battery while driving?

    Fridge is connected to aux battery.

    Sent from my CPH1921 using Tapatalk
    12/97 GEE YOU
    4.5lt Gas blower. Lots of mods to come.....all in good time.

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    MB (21st January 2022)

  16. #579
    Patrol Freak jff45's Avatar
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    I have a slide out 100w panel under my roof rack because it’s only a 3/4 rack. The slide is simple square ally tube on each side running in ally angle slung underneath.
    It has to be pulled out to be efficient. I’ve measured 5 amps on a good day with my clamp meter.

    I don’t use a separate controller, I have the solar input on the DC/DC charger.


    0457F731-2C43-4BAF-A569-2A412CAAF7BC.jpeg

    09BF2ACF-2664-425A-B107-E5806CEBFF52.jpeg

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    John

    2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body

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    MB (21st January 2022)

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    I like both these concepts, however will need to see what I can make work. The HH antenna on the rear might limit my rear options, and the rack support legs might be just that bit close for the side - thinking .......

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    MB (21st January 2022)

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