diy solar

diy solar

Search results

  1. murmeister

    Series and parallels

    Sorry, I just read your message again. I have AIO (all in one) on my brain.
  2. murmeister

    Series and parallels

    Are you sure about the specs on your inverter? Only 54.4 volts input on the MPPT? Also, how many strings can connect to your inverter and what is the max amps limit per string?
  3. murmeister

    Solar PV wire sizing

    When you're right, you're right. For me, it's future proofing against pulling 8awg later because you wished you'd done that up front. Kind of a "wish I'd known then what I know now" kind of thing. I appreciate your activity in this forum and I enjoy reading your posts.
  4. murmeister

    Solar PV wire sizing

    I recommend 8AWG PV wire - even though you're using conduit. Wiring is something you want to do once and forget about it. There will be many other things that come up with your system and your wiring shouldn't be a concern. Also, your needs may grow over time and pulling new wires through 300...
  5. murmeister

    Ghosted? Another article popped up with example(s).

    I think anyone taking on a solar project should expect to be ghosted. Here's what I mean. My electrician neighbor was exceptionally helpful in replacing an electrical panel in my shop. I sent him a text about my planning on doing a solar project, I've not heard from him since. Call that the...
  6. murmeister

    Dad Jokes (let's hear your worst! ;-)

    I'm currently trying to formulate a punny reply.
  7. murmeister

    Dad Jokes (let's hear your worst! ;-)

    I wouldn't touch that comment with a 20' pole! :)
  8. murmeister

    Dad Jokes (let's hear your worst! ;-)

    Decepti-Con-gratulations on that outfit!
  9. murmeister

    Dad Jokes (let's hear your worst! ;-)

    What do you call it when the line of men gets shorter?
  10. murmeister

    Dad Jokes (let's hear your worst! ;-)

    Trying to inject some humor with that font?
  11. murmeister

    Smaller gauge solar panel wire?

    The PV cables are made to be quite durable and UV/weather resistant. All the cables I have say they can be direct buried. Expensive? I don't feel that way, considering the quality.
  12. murmeister

    Dad Jokes (let's hear your worst! ;-)

    Isn't there a punatentiary on the Barbary Toast?
  13. murmeister

    Smaller gauge solar panel wire?

    I ran my PV wire about 150 feet from my array to my house. I figured with enough voltage, I could use smaller wires with minimal voltage drop. Ultimately, for peace of mind and never wanting to dig that trench again, I ended up using 8AWG wire. Interestingly, I had an issue I needed to...
  14. murmeister

    Off grid in suburbia

    I'm sure your dad has forgotten more than I ever knew about electrical systems for the house. With that in mind, I offer that PV systems are a new beast and require knowledge that isn't readily known to many "old school" professionals. DC wiring requirements differ enough from AC that my local...
  15. murmeister

    EG4 PowerPro or Ruixu for 18KPV?

    They are heavy - no argument there. However, ASFIK, there is no requirement that they mount physically under the 18Kpv like the diagram shows. Some marketing person made that image for a cleaner look. While you CAN mount it like that, you can also mount it further away. It will just require...
  16. murmeister

    Connected two EG4 PowerPro's, but 18kPV not seeing them

    Make sure the communication settings are properly set. I used Lux (whatever that number was) for the CAN protocol and EG4 for the other. You have to revert the dip switch settings to 0, recycle the power on the battery, then hold the ENTER button for a few seconds to pop up the protocol menu...
  17. murmeister

    EG-4 18kw pv inverter, generator won't with it

    Gotta give a huge shout-out to @EG4_Jared! What a trooper. He rolled my firmware back so we can be operational again. Hopefully, things will be ready in the near future to get back onto 1919's successor.
  18. murmeister

    EG-4 18kw pv inverter, generator won't with it

    Well, we experienced the same behavior today. Switching the PV input setting didn't solve our problem. Looks like we're rolling back until we can get more info about what's going on. Jared from EG4 has been helping us and said he'll pass along our data to the engineers for review. No idea how...
  19. murmeister

    EG-4 18kw pv inverter, generator won't with it

    We already had one flicker and beep (it's all the UPS systems in the house that beep) before I switched to no PV inputs. Generally, the inverter just shuts off the PV inputs once the batteries are at 100% SOC. This morning, the flicker caused the inverter to pull from the grid and the PV was...
  20. murmeister

    EG-4 18kw pv inverter, generator won't with it

    I'm going to go change the setting right now and see if my "flicker and beep" problem goes away today. I'll report back..
  21. murmeister

    EG-4 18kw pv inverter, generator won't with it

    ::scratching head:: I thought that would cause the inverter to disregard PV inputs. Is that not the case? Granted, I just followed the advice of SS in choosing all three strings independently and I didn't research this setting. I "thought" I understood what that option was controlling.
  22. murmeister

    EG-4 18kw pv inverter, generator won't with it

    Don't get me wrong. I really like the 18Kpv. When it's working, it's amazing - albeit somewhat loud. When it doesn't work right, my anxiety level rises and SWMBO starts asking questions for which I have no answers. If things hadn't already been working, I'd still be in "configuration" mode and...
  23. murmeister

    EG-4 18kw pv inverter, generator won't with it

    I ran two tests and the generator does charge the batteries as expected. The SOC values for start and stop were honored. The PV problem is intermittent, and seems to only happen when the batteries are full. However, the inverter also randomly decides to switch to grid only mode during the...
  24. murmeister

    EG-4 18kw pv inverter, generator won't with it

    I'm traveling the 18Kpv/Generac road, as well. After finally getting it to remote start based on SOC, I found that it would NOT charge my batteries, but would supply load to the house. Upon urging from SS, I updated the firmware to 1919, now my Solar input faults regularly and the system...
  25. murmeister

    December PV starting off crappy again.

    Didn't know where else to brag - but I'm so excited - I have generated MORE PV input than consumption in about two months - in the winter! We only had 6 (out of 32) panels hooked up with no batteries for a few weeks. Today, we surpassed consumption with production. A banner day to me. Now...
  26. murmeister

    Wondering why're many people still building 12/24v system ?

    I've been thinking about your lead-in question. After pondering for a while, I will admit that I originally thought 12V was the only way to go. It wasn't until I got more into this forum that I considered other options. Even then, I thought 48V was way beyond my comfort zone. It took a while...
  27. murmeister

    Wondering why're many people still building 12/24v system ?

    I'm going through just this problem right now. While I admire your solution (and the buy-in from your wife!), my needs are beyond a simple 12v system. I could do without the AIO headache, though.
  28. murmeister

    How to prevent backfeed?

    I can confirm that the 18Kpv does, in fact, back feed (micro export), at various times. There is a "Zero export" option that you can set. I thought that would be sufficient. After a few days, I noticed I had exported 0.1kwh of power. Not significant, but also not zero. There is also an "Off...
  29. murmeister

    Dad Jokes (let's hear your worst! ;-)

    I have 18 solar panels. I divided them into two teams for a competition. I call it the:
  30. murmeister

    EG4 18kPV Q+A general thread

    That's good to know. Thanks for that tip!
  31. murmeister

    EG4 18Kpv + Generac 7171 10KW

    I'm having a very similar problem with my Generac. I ran a test tonight with the settings shown in my images and the generator powered the house but never charged the batteries. If I have a frequency problem, how can I tell, and furthermore, what can I do to remedy the problem? I noticed the...
  32. murmeister

    DC water heater.

    While I honestly believe people are genuinely trying to be helpful with the myriad of suggestions, I think one point is overlooked. You've put in a TON of work already and you're clearly doing this as an experiment and learning experience. I, for one, salute your tenacity and hard work. The...
  33. murmeister

    DC water heater.

    I agree with this. Having just powered up my house with solar, I start eyeing a way to get power to my shop when the batteries are full and I start exporting to the grid. You may wonder what to do with the extra solar power once your water is hot and the sun is shining brightly in the sky!
  34. murmeister

    Generac Eco-Gen 15kW (2020) to Growatt 12kW -> 2-wire-start-stop dry contact problem

    I reread all of your post again and removed my original reply. Seems like my situation was different than yours after all. My problem related to Evolution v1 vs v2. Good luck.
  35. murmeister

    Hi from Queensland Australia

    I chose ground mounts for similar reasons. While I don't need to worry about snow cleaning, I do have to worry about bird droppings! Also, and this may wear off over time, I do enjoy walking amongst my arrays and gaze at that which I have constructed! I also heard somewhere that roof mounted...
Back
Top