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DIY Solar panel setup on a budget

Discussion in 'Hobby Engineering' started by Mathuisella, Oct 15, 2013.

  1. RobRoySyd

    RobRoySyd Member

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    It's a dumb idea simply because the thing most likely to fail is the aluminum frame of the panel itself where the bolts goes through it. I'm assuming the panels have frames.
     
  2. vk2fro

    vk2fro Member

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    Yeah they do. I'll stick to racks.
     
  3. RobRoySyd

    RobRoySyd Member

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    Give that these things will be exposed to the elements for a long time one thing I would be concerned about is corrosion. I'm now a fan of stainless fittings. If you're within 10KM of the coast then 316 else 304.
     
  4. Recharge

    Recharge Member

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  5. Recharge

    Recharge Member

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  6. Recharge

    Recharge Member

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    Last edited: Jun 3, 2021
  7. dakiller

    dakiller (Oscillating & Impeding)

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    Does any one here have and sources for inverters and chargers for battery setups that run on 120v DC? Nothing overly high power, a 3kW inverter would be enough. Googling '120v inverter' is just showing inverters that output 120v ac.

    I'm in the process of building a 35kWh offgrid battery setup, that'll eventually run off a Selectronic SP pro offgrid inverter that takes 120V batteries, but I'm thinking some smaller gear to have on hand to be able to make some use of the batteries before I get to the finished setup would be nice to have.
     
    Last edited: Jun 4, 2021
    fredhoon and ShadowBurger like this.
  8. ShadowBurger

    ShadowBurger Member

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    Lead-acid? the only source I found was aliexpress
     
  9. dakiller

    dakiller (Oscillating & Impeding)

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    The batteries are LTO. Charging isn't much of an issue, but I'd like an inverter to run off them.

    Following a link from the Inverter teardown video Recharge posted, gives this
    https://www.ebay.com/itm/114832210480
    120V DC to 120V AC

    Just need a 240V version
     
    Last edited: Jun 4, 2021
  10. Recharge

    Recharge Member

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    https://www.aliexpress.com/item/400...&terminal_id=dff6e13b95c4495990ec6c987daec4b3
     
  11. dakiller

    dakiller (Oscillating & Impeding)

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  12. Recharge

    Recharge Member

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    ugh I didn't pay close enough attention.
    this is the problem with inverters, searching for specifics is impossible.

    typing 120v input only brings up out outputs, google is fracking useless these days.
    wild card don't work any more like they used to either.
     
    Last edited: Jun 5, 2021
  13. MUTMAN

    MUTMAN Member

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    add a step up tx ?
    a simple auto TX toroidal would be sufficent, but a proper isolated windings jobbie is preferable
     
  14. dakiller

    dakiller (Oscillating & Impeding)

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    I was waiting for that suggestion, I'd rather not.
     
  15. MUTMAN

    MUTMAN Member

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    I guessed you'd already considered it....
    but a big iron core helps waveform and any startup issues too ...

    edit - talk to tortech, they might be able to modify an existing product fairly easily ???
     
  16. Recharge

    Recharge Member

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    far cheaper version than victron.



    a review on the above model and competing offerings.
     
    Last edited: Jun 8, 2021
  17. Stanza

    Stanza Member

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    Victron is the one I have.
     
  18. Recharge

    Recharge Member

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  19. Recharge

    Recharge Member

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  20. Recharge

    Recharge Member

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