Complete Solar solution - Page 2




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  1. #21
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    Default Re: Complete Solar solution

    Quote Originally Posted by Chukudeer View Post
    Agreed, you need 2 new batteries and something like this.....

    2 x 80watt panels and a cheap controller, will cost you far less than R10K, easy to add 2 hinges and a handle......
    Chukudeer, nice pictures of the panels. Did you do this yourself? I now bought the batteries and will do the panels next. What did you use to close the back of the panels? And the table construction, did you buy this or made it up yourself?

  2. #22
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    Default Re: Complete Solar solution

    Quote Originally Posted by Munnika View Post
    Apologies for what is certainly a repeat thread. Simply don't have the time to scroll through the large variety of threads on this topic.
    I have a Metalian Maxi that have had two 105 ah batteries installed. These are now almost 5 years old and seem to have lost its umph. I need to replace them. They have served me well, but mostly under circumstances where I had access to electricity to recharge. I've now planned a trip to a place next month without electricity, will be there for 6 days and with the 80lt NL fear I will run out of juice. I only use 12V for the fridge, some lights and a water pump.
    So some questions:
    1) Do I go two batteries again and nurse my available battery power or do I go one battery and a solar kit?
    2) What solar kit and where can I purchase it in Cape Town?
    3) Which battery and where can I buy them? There are so many different technology solutions available nowadays.
    Thanks for the help guys.
    Chat to the guys at Bluenova.co.za they are catering more and more for the outdoor market and just completed a trip with a kitted Ranger displaying their technology.
    Very experienced and knowledgeable.

  3. #23
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    Default Re: Complete Solar solution

    Bought the panels today. I opted for 3 x 50w panels which I will assemble like the photos earlier in this post. I'll be able to get around 9 amps from these panels combined which should be ok charging the 2 batteries using a 20 amp regulator. Will post photos when done.

  4. #24
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    Default Re: Complete Solar solution

    Kyk by revolt.co.za gaan na hulle sonpanele en kyk heel onder die lys. My volgende koop vir my kamp yskas.

    https://re-volt.co.za/Store/index.ph...product_id=628

  5. #25
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    Default Re: Complete Solar solution

    I completed the construction of my panels and I am extremely pleased with the result.
    I opted for 3 x 50 watt conventional panels which I connected to one another. I have the choice to only use one panel (the top one) providing 50 watt or I can unfold the lot to give me 150 watt at almost 10 amp.
    The setup folds up nicely and is secured with clips to keep it closed. I strengthened the solar frames and included two pieces of angle iron which is used to bolt the panels securely if it is unfolded. It prevents the panels from moving once unfolded.
    Having done this I have access to 150 watt but it folds up in the size of one 50 watt panel.
    The handle makes it easy to carry it around, closed or unfolded.

  6. #26
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    Default Re: Complete Solar solution

    Quote Originally Posted by Munnika View Post
    I completed the construction of my panels and I am extremely pleased with the result.
    I opted for 3 x 50 watt conventional panels which I connected to one another. I have the choice to only use one panel (the top one) providing 50 watt or I can unfold the lot to give me 150 watt at almost 10 amp.
    The setup folds up nicely and is secured with clips to keep it closed. I strengthened the solar frames and included two pieces of angle iron which is used to bolt the panels securely if it is unfolded. It prevents the panels from moving once unfolded.
    Having done this I have access to 150 watt but it folds up in the size of one 50 watt panel.
    The handle makes it easy to carry it around, closed or unfolded.
    Some fotosClick image for larger version. 

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  7. The Following 3 Users Say Thank You to Munnika For This Useful Post:


  8. #27
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    Default Re: Complete Solar solution

    Very Practical. I like it

  9. #28
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    Default Re: Complete Solar solution

    Wat se backing het jy gebruik op die agterkant van die panele? Lyk heel oulik

  10. #29
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    Default Re: Complete Solar solution

    Die backing is 3mm corrugated plastic sheets (soos die wat vir advertensie borde gebruik word). Lekker lig en sterk.

  11. #30
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    Default Re: Complete Solar solution

    Quote Originally Posted by Munnika View Post
    Die backing is 3mm corrugated plastic sheets (soos die wat vir advertensie borde gebruik word). Lekker lig en sterk.
    Correx board

  12. #31
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    Default Re: Complete Solar solution

    Quote Originally Posted by carlp View Post
    Correx board
    That stuff is really handy, where can you buy it and how much is it per m?

  13. #32
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    Default Re: Complete Solar solution

    Quote Originally Posted by Skylark View Post
    That stuff is really handy, where can you buy it and how much is it per m?
    I bought it from an ad company. They buy it in sheets. Can't remember the size of the sheet, something like 1.2 x 2.0m. They then cut it to size. Cost was about R175 for the sheet.

  14. #33
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    Default Re: Complete Solar solution

    Quote Originally Posted by Skylark View Post
    That stuff is really handy, where can you buy it and how much is it per m?
    You can buy it from Maizey in George.

    Ring Road Industrial Area, 9 Ring Rd, George Industria, George

  15. #34
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    Default Re: Complete Solar solution

    Quote Originally Posted by Chukudeer View Post
    Agreed, you need 2 new batteries and something like this.....

    2 x 80watt panels and a cheap controller, will cost you far less than R10K, easy to add 2 hinges and a handle......

    I spot a potential problem. The heat is supposed to escape from the rear of the panels for efficiency but you have closed this area up completely.

    Just saying...
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  16. #35
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    Default Re: Complete Solar solution

    Quote Originally Posted by Mitsu Fan View Post
    I spot a potential problem. The heat is supposed to escape from the rear of the panels for efficiency but you have closed this area up completely.

    Just saying...
    Having no experience using such panels the thought did cross my mind during the construction phase. I tested it for a while in full sunlight and it obviously generated heat but not so much that I had cause for concern. But, the tests were done a few days ago here in Cape Town, not a lot of heat going around at the moment.
    Please can you elaborate on your comment regarding efficiency? Are the panels generating less output when getting hot?
    The panels are closed off as you say and this serves no other purpose than to make the panels look nice and neat. If it poses problems it could simply be removed.
    So how hot do the panels get in full sunlight, say middle of summer? Hot like you can touch it but not for too long, or hot like bring the bacon and eggs hot?

  17. #36
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    Default Re: Complete Solar solution

    Quote Originally Posted by Munnika View Post
    So how hot do the panels get in full sunlight, say middle of summer? Hot like you can touch it but not for too long, or hot like bring the bacon and eggs hot?
    In my experience, closer to bacon and eggs hot. And cooler panels are more efficient.

    We also have a "suitcase" panel, two panels folding up back to back. The space inbetween is a nice place to store the cable when travelling.
    Niel
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  18. #37
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    Default Re: Complete Solar solution

    Solar panel output is rated at a working temperature of 25C, as temperature arises above this, the output progressively decreases with 10-25%.
    Allowing the panels some air circulation would help in reducing heat build up and maintain higher outputs

  19. #38
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    Default Re: Complete Solar solution

    Quote Originally Posted by SAND View Post
    Solar panel output is rated at a working temperature of 25C, as temperature arises above this, the output progressively decreases with 10-25%.
    Allowing the panels some air circulation would help in reducing heat build up and maintain higher outputs
    Me thinks a little modification may be required...

  20. #39
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    Default Re: Complete Solar solution

    Quote Originally Posted by Munnika View Post
    Me thinks a little modification may be required...
    Happy to report that the 3 x 50 watt panels worked like a charm and through 4 days of static camping kept the 2 x 100 ah batteries completely charged.
    Heat on the panels was not a problem at all (in around 23 degrees day temperatures). Click image for larger version. 

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