diy solar

diy solar

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  • DIY suburban Ground Mount 2.7kw system results

    Thanks to all the help from this community (and a few others) my DIY 2.7 KW ground mounted system is up and running well (so far!)
  • Opinions on how I should arrange my ground mount setup.

    Video details what I have to work with. 6x https://store-fhnch.mybigcommerce.com/content/RSP450DT/231123RSP450DT-120-G1 Datasheet.pdf Inverter/Hybrid: SPF 3000 TL LVM-48P 6AWG Wire about 100 feet to get from combiner box (outside) to inverter inside), not detailed in video. Mount will be...
  • What are folks using to compress/fix their batteries together?

    And what are folks doing to measure/know if the applied compression force is within spec? In my case my battery states 3000N to 7000N and I think it even details/hints something about that changing as the batteries age...
  • Cheap but viable ground mount solutions?

    So I bought one of these per panel I have...
  • Looking to create a system or buy a portable power station that offers direct solar/battery as backup.

    It started with looking at buying a portable power station as an all in one system that is missing only the solar panels. From there I learned that some systems don't offer solar charging while battery is discharging. And from there I learned while some systems do that, other portable power...
  • Thoughts on Chinese Import Tax hike?

    https://pv-magazine-usa.com/2024/05/16/more-bark-than-bite-u-s-solar-tariffs-and-the-shadow-of-larger-trade-measures/
  • Less than 50 pounds solar panels near 450 watt range possible?

    So my current setup includes six 450W bi-facial solar panels by renogy which I decided to ground mount due to their weight and a few other reasons. I'm looking to potentially put three more on the roof, but I'm looking for the same watts around 450 but lighter so that'll be easier to install on...
  • Review My Build Part List Please

    This is just for me to learn and charge my tesla via a slow charger daily, whatever the system can give it. https://allprossolar.com/product/growatt-3kw-stackable-off-grid-inverter-spf-3000tl-lvm-24p/ https://www.renogy.com/2pcs-bifacial-450-watt-monocrystalline-solar-panel/ 2x...
  • For Sale: EG4 LifePower4 Battery 48v 100ah (Houston, TX or Nearby)

    I decided to try and do DIY battery so I'd like to recoup the cost of this battery and won't need it any more. Selling locally near or in Houston, Texas. 2 Weeks used, will come charged %90+ with all paper work and stock wires. Asking $1350. Local only, will meet up and deliver it to you.
  • Justifying Going Solar, When is it a good time to make the move?

    I've been dreaming of going solar for a long while now. I've recently purchased an EV and my potential for at leasing making my commute green is halfway complete. I just need a means to charge it via a renewable source. I live in Texas, we get plenty of Sunshine here and it annoys me that going...
  • Wiring Styles? Safe vs Cost Effective

    So I'm sure there is a lot more to cover when it comes to wiring but my first though is, should I run two wires from two strings 100 feet to a combiner box that is close to my break box or should I instead keep the combiner box near the solar panels and take a single wire 100 feet to the break...
  • Help me better understand Bypass Diode Function Please.

    I think I get it but not sure. Does a bypass diode activate once the PV cells in series produce voltage that is too low? If so what is that threshold? And if that treshold varies per panel how can I learn to read a spec sheet to understand that so I can get an idea for what shading is too much...
  • Can bare copper wire go directly into Earth before reaching grounding rod?

    I've got my panels ground all linked up with bare solid 6 AWG copper wire. I tested continuity but using the second ground hole as one point of contact on my multi meter and the bare copper wire as the second and there is continuity. Did this for each panel. My question is, since my array is...
  • Any known redistributor that sells automotive grade cells (without the false labels of Grade A or B) in the US?

    Wanting to build my own bank and I've got an order pending with 18650 batteries for the eve 304ah grade A batteries. Having learned just now the myth that is Grade A and B I plan to ask them what Grade a means to them. In case their answer is it's better than B but not rated for electric...
  • Inverter Turning off due to Fault for low voltage battery on my DIY battery.

    So my custom build solar system + DIY Battery (16s EVE 304ah Batteries from 18650batterystore) finally started doing something concerning yesterday. At around 14% reported SOC from JK BMS the inverter just turned off. At first I thought it was my Growatt LVM 3000 48p failing but I noticed the...
  • EVE 304ah came in

    So my EVE 304AH batteries from 18650 battery company in Georgia just came to my house. I'm doing some testing and I'm getting 6.0 mega ohms of resistance? This seems way off yes?
  • Safety Check as I cross the finish line here.

    Got all my panels mounted. Going to be wiring a copper wire between them to ground them. But when it comes to the battery, it seems I need 1 * 4 AWG wire but I can't find that right now. Can I safely use two 6AWG battery wires per pole instead? I also have only one 70AMP fuse and it says max...
  • I have my system finally working. But when I use a outlet tester to check safety. I get an open ground message.

    For context I have the SPF 3000TL LVM-48P I have continuity between the ground port of my outlet and the grounding rod. But the tester is showing open ground. Can anyone advise?
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