DIY Solar Panel System Wiring Diagram


DIY Solar Panel System Wiring Diagram. This is an exact diagram of how I wired my complete solar panel system from the solar panels to the charge controllers…

25 thoughts on “DIY Solar Panel System Wiring Diagram”

  1. couple of points. If fuses are cheap why not also fuse the negative wire
    just in case? You never know when you might get a spike of power on the
    wire and blocking diodes can only do so much before they are overrun.
    There are also inline breakers in lieu of fuses which means they would
    trip and require a manual reset like a home breaker box as opposed to a
    consumable that you may run out of.

    Secondly you do not have real redundancy. If a charge controller fails you
    may have panels you cant use because the combined amperage off the panels
    may overload them. This would leave you with roughly half the charging
    capability thus you would run your batteries down lower. I still stipulate
    that you have a secondary inverter and desulfator capable of handling your
    entire load, or can be made to handle it.

    Your battery bank is also not redundant. If any battery fails for any
    reason you lose storage capacity.

    In both instances for real redundancy you would have to have a 2nd entire
    set of batteries (preferably with an A/B switch and you could even
    alternate days used which can allow for better more battery friendly
    charging) and at least enough capacity on the charge controllers so that if
    one dies you can still run at full capacity.?

  2. Great vid. but I wish you could have shown us proper grounding for the
    system. Thanks!?

  4. just one question ,do you know why my inverter does not won’t to work (faul
    lamp)when I plug only fridge to 76 AM battery with 100 W Solar panel?
    is something not right ?do I need more batteries or what to change to make
    it work??

  5. I have a question. In your vid you say that you can also connect the
    invertor to you fuse panel box to power your home. how would you wire that?
    where do you tie in from the invertor and where would you tie into the
    panel box on your house? thanks. ?

  8. Thank You for this video and great guidance.

    There is one question: You have used a Battery Tender for charging the
    batteries when its not getting power from solar panels.
    1. For a Online Inverter that has a charger inbuilt, will I require
    a Battery Tender??

  10. Commercial Solar Panels are too Expensive !!
    If you want a Good solution to Power your Home,
    You have to Learn to Build your Own Solar Panels
    Go to Google and Search for:
    *Top DIY Solar Panels Research*
    Choose the First result (Skip the advertisement on top)
    It is a Blog that Explains it in Details………?

  12. Isn’t the purpose of the solar panels and charge controller to keep the
    batteries charged??

  14. It appears that your ” BZ 500 MPPT500 Watt PV Charge Controller:” is not
    being manufactured any longer. Is there any other you would recommend or us
    first timers??

  15. Thanks! This design is really very helpful. But how do you balance the
    number of batteries with the number of solar arrays to achieve some
    efficiency??

  16. Two questions: 1) how do I tell what gauge wires to use in a system? is
    there is forumula or good guide on which sizes to use for which power?
    2) how do I know what size circuit breakers to use in line? Just got my
    first panel and battery (100W 12V 80Ah) so it’s not important now, But I
    plan on expanding.

    Liked and subscribed. Thanks!?

  17. are these ANL200 fuses good for 24 volt systems, and why not 150 amp. 200
    seems large?

  18. When you series the 12 volt panels you add the voltage to equal 24 volts.
    However you do not add the wattage or amperage of the panel when you series
    them. Each group of two panels is 24 volts at 220 watts It simply stays the
    same. So you could use all four panels on one controller and a total of
    eight on you system of two controllers. On a side note if you parallel the
    panels ( positive to positive, negative to negative) then the voltage stays
    at 12 volts then the amperage will double to 440 watts. Nice diagram and
    great idea with the tender and desalinater. ?

  21. I’m not sure. I would recommend calling the panel manufacturer or
    controller manufacturer.

  22. This is great and very helpful. I have an off topic question. did you give
    the measurements of your rack the you have your solar panels on?

  23. Oh, OK, if you say so. I guess I’d better ignore all the certified tests
    and documentation. Thanks for the heads up.

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