diy solar

diy solar

Recent content by Dauntless

  1. Dauntless

    Array Grounding and Components Grounding

    Watching the video and reading all the comments above, everyone seems to be saying the same thing as I understand it. Both the video and comments above could be more clear however. One of the confusing issues is that people will sometimes refer to DC negative as a ground. Not the same thing at...
  2. Dauntless

    Problem charging battery with MPP Solar LV5048 inverter

    Screech has explained this the problem very well. When first encountered it after installing my inverters, I attributed ot to the inverters not having an Absorption mode. I set a manual time for my batteries and that solved the problem. Other than that, and that they needed to be OFF to use...
  3. Dauntless

    Solar south

    This is the best way; then at solar noon, I paint the shadow on the ground. Without knowing the time or anything, you can also put a stick in the ground (vertical) and the smallest shadow, will be solar noon.
  4. Dauntless

    Grounding off-grid system in my house. Hold my hand please.

    And the answer is? I'm doing much the same with an on-ground array mounted on wood.
  5. Dauntless

    Has anyone else realized how far we are away from running civilization fully on wind and solar?

    We need to go back to nature. Everyone just needs to go to sleep as the sun sets; wake up when it rises and all will be perfect.
  6. Dauntless

    Average Consumption?

    We're in south Texas, near Austin and running 1400 to 1800 kWhr per month. That's in a big 3,500 ft2 house, running two A/C units, but I try to keep the house pretty warm, like mid 70's. Also two fridges/freezers and large 25,000 gal pool with variable speed pump which is new and makes a big...
  7. Dauntless

    Looking for light weight racking material to build my own racking system.

    I am interested in the same, but probably 30+ panels. Anyone have any thoughts???
  8. Dauntless

    MPP LV2424MSD Run inverter and charge simultaneously?

    Just says don't connect if you have any short circuits. Works fine connected to shore power and inverting and charging as needed.
  9. Dauntless

    Understanding MPP Solar charge settings for LifePO4 batteries

    This, resetting the Float is exactly what I must do, if I want the batteries at 100% Normally i don't though, so I am happy to set Float to 13.3v, which is where my MPP 1012 stays when connected to shore power, which is most of the time. So the only "fault" I see with the MPP is that once it...
  10. Dauntless

    Hybrid LifeP04 - FLA advice

    Not clear to me why you want a second BMS. Why not just do as the first article you quoted and be done with it? Why make it more complex than it is? having said all that, I added 200AH LiFePO4 to my SLA battery bank last spring. It has worked exactly as described above. I did not add any extra...
  11. Dauntless

    MPP Solar fan noise in living room

    I have the 1012 and the fans are loud by any measure when they are on.
  12. Dauntless

    MPP Solar fan noise in living room

    The fans run speed seems dependent on inverting power, not battery charging by solar.
  13. Dauntless

    Lithium Charging w/alternator

    No. You need to protect the Li . So set up for Li and the LA will be fine.
  14. Dauntless

    Update on Solar Conversion for 53' Trawler (32V)

    You're planning on living on the boat, right? I think you are vastly underestimating the amount of energy you will need to just to make your living area function without feeling you are living on small boat using a cup of water to shower in and washing dishes in salt water. People who live in...
  15. Dauntless

    Update on Solar Conversion for 53' Trawler (32V)

    Just a few observations because most on this forum know more about SP than I, but here I go. I like your getting 10 3.2v cells. I have one 200ah 12v LiFePO battery in parallel with my SLA, since June. This hybrid system has worked extremely well and I like it. So, I would try to keep your...
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