diy solar

diy solar

Recent content by uzernaam

  1. U

    60 Amp 48V Charge Controller

    I have a MorningStar 60A 48V MPPT charge controller that I purchased brand new this summer. I installed it with a separate inverter, but decided later to go with a larger all-in-one unit when I had the funds to do the bigger project so I no longer need it. Product link...
  2. U

    Solar Design Attached / Comments?

    I can help you. I was looking for a way to send you a private message directly but does this website allow that?
  3. U

    SPF Growatt 5000 ES System. Design review and suggestions

    I'd like to remind everyone in this thread that if you have a breaker on your midpoint transformer and it trips, you will have a "lost" or "floating" neutral and your service panel will be feeding your 120V phases in series at 240V. Depending on what you have running, your 120V appliances could...
  4. U

    Question about Growatt AC IN

    I'm speaking to you from beyond the grave. I was electrocuted, and then I exploded.
  5. U

    Question about Growatt AC IN

    So I got off the phone with some tech guys at Signature Solar, and they say I can run 240V split phase into the N and L1 AC input terminals without a problem. I'll post an update if I die or explode.
  6. U

    Shed Solar - See any mistakes?

    I had the fuses and fuseholders left over from my car stereo days, and decided that rather than take up space in a toolbox, I should put them to use. I'm looking at DC breakers, but so many of them are made with iffy quality these days but I know 100% a fuse will blow on a short. Can you tell...
  7. U

    Shed Solar - See any mistakes?

    smoothJoey - I have new fuses coming in the mail. My loads are nowhere near 5kw anyway and I've lowered the charging rate limit on the inverter. The battery cables are a pair of 4 AWG on each terminal, equivalent to 1 AWG. Updated Diagram:
  8. U

    Shed Solar - See any mistakes?

    Johan, you found a mistake in my diagram! Yes, that's exactly how it is. I'm going to have to redo my schematic. acdoctor - I only had 60A fuses on hand (more coming in the mail soon hopefully), so I set max charging on the growatt inverter lower than that.
  9. U

    Shed Solar - See any mistakes?

    The transformer is wired directly to the buses, no breaker in between. I figure that since the transformer is a simple, large electronic component it has a low failure rate, and if anything does happen to it the output breaker (not pictured) inside the inverter or the input breaker on the panel...
  10. U

    Shed Solar - See any mistakes?

    Good eye. That was an older photo. Oops. Updated.
  11. U

    Shed Solar - See any mistakes?

    So this is my first solar install. I'm no expert, just a DIYer. I have 10 Heilene 320w panels on top of my shed. Cables run down to a combiner box, then DC runs out from that through an underground conduit to the house. I'm using a Solar Edge midpoint transformer and a Growatt 5000 ES...
  12. U

    Assistance with inverter choice Growatt 10k?

    The output power (amps x volts) of your panels are stated under test conditions. Life in the real world is less optimistic. I make my calculations at 80% of rated power or thereabouts. My panels are rated at 9.5 amps but at high noon on a crystal-clear day I've only ever seen about 8, and...
  13. U

    Sol-Ark needs a serious Change!

    People talk about using sufficient gauge wire for ground, but what is really "good enough?" I use a 2 AWG cable for my ground, but the distance to the ground rod is 40 ft. Any other route is impossible or longer due to the layout here. I do have the Midnight Solar MOV surge arrestors on the...
  14. U

    Question about Growatt AC IN

    Bud Martin Option 24 is in regards to AC output. My question is regarding AC input: What happens if 120VAC is fed into the "N" terminal (and 120VAC of opposite polarity on the "L" terminal) ?
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