diy solar

diy solar

Search results

  1. WorldwideDave

    Where to use 2/0 wiring?

    I have not done cuts or crimps on it yet. Just carrying it to my car was a workout. That's some hefty wire. My plan was to lay it out perfectly first. I thought I read in the Victron PDF that this was good for my application as well (THHN) vs solid core or the super thin stuff. Didn't cost to...
  2. WorldwideDave

    Where to use 2/0 wiring?

    I have 2 pieces at 4 feet each. For the DC side if no good, then when I buy an all-in-one inverter in the future, I can use this to go between it and a wall-mounted panel, then (which I already own)?
  3. WorldwideDave

    Where to use 2/0 wiring?

    Home Depot. Thhn is what I got.
  4. WorldwideDave

    Where to use 2/0 wiring?

    We are all talking about 2/0 AWG wire, that is 0.364797 thick, right? Not 2 AWG wire, that is 0.257626 thick, yes? In the example above - a 2000 watt 12v inverter - what low-frequency inverter has posts *that* big? what about a 4000 watt inverter on 24 volts? You saying that for an 8000 watt...
  5. WorldwideDave

    Where to use 2/0 wiring?

    you went straight from battery to inverter - no fuse, no bus - on a 48 v system? Asking because I'm new to all this. When you say moderate inverter, you mean a 5000 Watt low frequency inverter, or like a big 6K wall mount system like the EG4s Will talks about so much?
  6. WorldwideDave

    Where to use 2/0 wiring?

    I know that Will says he oversizes wires and solar arrays often, but I made a mistake. My system design was going to use 2 gauge wire, and I bought 2/0 wire instead. Where would someone normally use 2/0 wire anyway? It is so thick, and hard to bend. Presume between say a 200 amp panel and a...
  7. WorldwideDave

    Giandel inverters

    Heard back from Giandel: "Thank you for contacting our Giandel support team. Sorry, our inverters are all high frequency inverters. If you are interested in this, you can choose based on the actual power demand of the load. Regards, Vince" Nice that they replied. Any other brands recommended?
  8. WorldwideDave

    IntegraRack: Ground Mount with Epoxy Ground Stakes and Ballast Options

    After reviewing their web site, and one or two of the resellers, I could see myself buying these. Although they sell bundles, you don't actually save a dime from what I can see. You can buy 4 at a time, which will support 3 panels. Of course if you have this kit already, and you buy another 4...
  9. WorldwideDave

    Lead acid scares me now

    yes I did look at that page, thank you - I then clicked on each inverter, and even went to many of the manufacturers pages on amazon and did not find anything that discusses high or low frequency. So I contacted at least one manufacturer over email to find out.
  10. WorldwideDave

    IntegraRack: Ground Mount with Epoxy Ground Stakes and Ballast Options

    Anyone have design plans with photos for one of those pergula / roman shade outdoor patio covers made of treated wood that also has mounts on top? I have a backyard that I could paint the ground white and put one of these patio covers up with some panels up top in a low-wind area of the property.
  11. WorldwideDave

    Giandel inverters

    What model of Giandel inverters use low frequency? I think this one is a high frequency. Asked on amazon as well.
  12. WorldwideDave

    Lead acid scares me now

    Is there a list of low frequency inverters that will recommends?
  13. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    Thanks for reply. I don’t totally know how that applies to my situation. Can you dumb it down? You saying that somehow that because the battery voltage did not drop enough in a week that the SCC never asked the PVs for any juice? Or you saying that the voltage of my PV did not exceed that of the...
  14. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    I do have a handheld Fluke and Klien meter to measure amps. You are suggesting that I connect everything back up at night, draw a load from the fully charged battery to run the battery down a bit over night, turn off the loads, then in the morning when the sun is out and the panels turn on, I...
  15. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    what I did was the following patterns to test: have a load in use during the day while the sun was out and charging. have a load disconnected completely during the day while the sun was out and charging. Have a load in use at night when the sun was NOT out and it was NOT charging. Have a load...
  16. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    Here you go. Sequence is wonky. You should be able to see that it was charging and now it is not. I have security camera pointing at them 24/7. More coming.
  17. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    I’m out of town at a tech conference. I’ll look through my pictures later. Just assume for a minute that I did wire it correctly because it was working for a month, and now it is not, and it is either a bad solar charge controller not sending any juice to my battery, the meter itself may have...
  18. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    Thanks for your reply. I think the take away here is that no matter what, after buying a LiFePO4 battery, your first purchase must be an A/C to D/C charger for the battery. You must then leave it connected to the charger for a week or so to get it all balanced. THEN you can connect it to your...
  19. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    No, there is one physical shunt to touch to the negative cable of the battery. Two wires go to the positive and negative posts to power the meter. However, there is one wire on the battery post side of the shunt and another wire on the opposite side of the shunt where the battery cable connects...
  20. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    Should have added this: so I guess for charging, if I saw anything like 13.4 from an inaccurate SCC, then I presume it could be actually 13.6+ volts and be at 100% just fine. So I guess if my new charger is reading 14.4 volts, it is overcharging the battery. But I imagine the BMS in the battery...
  21. WorldwideDave

    Solar Charge Controller with 200 watt panel and more...

    Hello I am trying to diagnose a small DIY system. I think the panels are charging, just not certain. No expensive battery monitor. The SCC has a battery voltage on it, and I have a shunt with 2 meters connected to it - charge and discharge being monitored. The 'discharge' meter shows just fine -...
  22. WorldwideDave

    EG4 18k Consumption question

    Can you send me a link to one? Are these devices that go around the lugs or wires or something? I know what a transformer is.
  23. WorldwideDave

    My 18K PV Experience (Part 1)

    OK, I have no idea what 7/8 of what you said there is. Have you told me there was something for $200 I could buy it was turnkey I would.
  24. WorldwideDave

    EG4 18k or two 6000XP can't decide

    in summary… that, friends, is what happens if you live off grid in the woods.
  25. WorldwideDave

    My 18K PV Experience (Part 1)

    How are you charting this? I want to do this as well.
  26. WorldwideDave

    Where to build my first system? Open to all suggestions.

    Thank you. At my office apartment I will not be any problem. Or I have concerns is when I bring a trailer covered with panels and park it in front of my house. code enforcement might require me to move it every 72 hours which would become a real pain.
  27. WorldwideDave

    Getting hot outside - system sizing question

    what is a 'dump load option' - meaning that you have a lot of solar coming in, not enough battery to store, so dump load by running the A/C so the solar charge controller doesn't overheat/catch fire or something? Thanks. Beginners corner Dave :-)
  28. WorldwideDave

    Where to build my first system? Open to all suggestions.

    I have unique set of challenges. I have an office I am renting. It has a good size driveway and a garage I can use. The office is above the garage. I also have a home that I do not anticipate living in for more than 5 more years. I can park on the street 6 days a week, but one day I cannot...
  29. WorldwideDave

    Getting hot outside - system sizing question

    Seems like the product has been out for a while. What I can tell you is that I have 8 mini-splits (none like this) in various properties that cost around $600 USD each. I can't say that they have been trouble-free on A/C grid electricity. But when they work they work good.
  30. WorldwideDave

    Getting hot outside - system sizing question

    Just read the manual for the EG4. Very nicely written: https://eg4electronics.com/backend/wp-content/uploads/2023/09/EG4-AC-DC-Plug-N-Cool-Solar-AC-Manual-12K-24K.pdf it is for the hybrid model, which is at...
  31. WorldwideDave

    I have a puzzle for YOU

    Thank you @wpns - I have a low cost (free to me) solar charge controller (was new in box) and retails for $25 on amazon, so nothing great there. The battery has a BMS - it is a chins 200AH 12v 2560wh battery - but I have no idea which BMS is in it because it has no serial number on the outside...
  32. WorldwideDave

    My DIY 60 kW 220 panel setup

    great thread. love the pix with the text on them. very detailed.
Back
Top