solar home -DIY – Home Solar Hybrid – Standalone – Grid Tie – Done!!

December 2, 2012 – 6:29 pm

** Well, I think I’ve finally finished my home solar project. After doing a lot of reading, I believe I have an otherwise decent and safe. I tried to draw around Article 690 of the NEC as well as “practice.” I have added other components, and changed a few things around. It ‘was a learning experience pleasant and helpful. I read “free” books on design, operation and maintenance, and security, with reference to the National Electrical Code in relation to PV systems. After playing with my new Grid Tie inverter, I am convinced that it is a good addition to any system that produces 500 + Watts of power. My system is not the best and my way is not the only way to implement a home system, but I hope my ideas helps someone along the way. For those who really want to learn Stand-Alone PV system design etc, the following are excellent free books I downloaded and used: 1) Stand-Alone Photovoltaic Systems – (by Sandia National Labs) 2) maintenance and operation of stand .. -Alone Photovoltaic Systems (Sandia) 3) Working safely with PV systems (Sandia National Labs) 4) photovoltaic And the 2005 NEC: .. practices suggested just google the titles and download the pdf, and your good to go. Good luck, and have fun. Last Diagrams: (expanded system) (initial system) Other useful links; Video Rating: 5 / 5

** This week I had the rest of the fitting and the house painted. Follow us for more information on Google, Twitter, Facebook and Tumblr. ✔ Google+ ✔ Twitter: ✔ Facebook: ✔ Tumblr: We live 100% off the grid. Our power comes from solar panels that capture the sun’s energy. All the energy we collect goes in series battery where it is stored for future use. We are building a house designed by Rocio Romero LVM. It is a modern design with a small footprint and features a double-wall construction. I also have a lot of nature in my videos, so if this interests you please stay. Part of the network to full screen.

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  1. 48 Responses to “solar home -DIY – Home Solar Hybrid – Standalone – Grid Tie – Done!!”

  2. Thanks for your comments, I cleaned up my setup considerably from this video and I replaced an inverter. For now I believe I’m done, the system does what it needs to do. everything else is…. just extra I guess. Take Care.

    By rhandsom on Dec 2, 2012

  3. WOW !!! talk about growth.. beautiful set up..are you really done though, lol seems like enough is never enough your a insparation …thanks for sharing

    By chalkhill714 on Dec 2, 2012

  4. After a year and half, I can tell you the fans were excessive, the grid-ties are not necessary for a backup system. If I had all of the same types of panels I could have used 1 charge controller and not 2. I also should’ve purchased an inverter/charger combo instead of just an inverter. So if you stick to the batteries, a good inverter, charge controller, and get all panels of the same type, buy appropriate disconnect switches and fuses, you should be good to go.

    By rhandsom on Dec 2, 2012

  5. Thanks for the video. Please explain how you connected the inverter to your transfer switch. I’m very interested in setting up a backup power using a battery bank to the house.

    By vmeas on Dec 2, 2012

  6. There are inverters that will allow you to connect to Solar, Wind, or Batt. Just be aware that you must keep the unit cool to prevent overheating. I have one connected to a 24v system. And I typically run it in sunny conditions for 4hrs. It averages around 470w per hr * 4 = 1.8kW. A lot of pwr is lost due to heat. I don’t run it all the time or when I’m not at home and I use an external fan blowing in and around the unit to keep it cool. it’s a 12v – 30v GTI, so far no problems for almost a yr.

    By rhandsom on Dec 2, 2012

  7. Hello. I was told it would ruin the inverter connecting straight to the batteries. Have you been running it that way for a long period of time? Also what is the voltage you have going into the inverter? I was thinking of setting my system up in a similar way. I need no more than 2 KW going into the grid. The electric company doesn’t have net metering here in MS so I need to generate no more than I use. Thanks for info and g
    reat job on video.

    By mrbugman on Dec 2, 2012

  8. No problem glad to help.

    By rhandsom on Dec 2, 2012

  9. Thanks for the links!

    By pv48volts on Dec 2, 2012

  10. Thanks for your comments, wiring the fans in series would’ve worked. I didn’t think of that at the time. I have since removed the DC fans and rearranged my setup to be neater.

    By rhandsom on Dec 3, 2012

  11. You should have just wired your two 12 volt fans in series across your 24 volt buses. That would have saved you a shitload of time and money.

    By LPenney709 on Dec 3, 2012

  12. No problem, I’ll update the link in the description.

    By rhandsom on Dec 3, 2012

  13. All of your videos are super informative and I really appreciate you for taking the time to share. Thanks ! Your updated drawing would really be helpful to me, Im having trouble accessing it. Can you help?

    By gurlblu2001 on Dec 3, 2012

  14. I’ll try and see if I can see about connecting one of them to the load side of the charge controller without frying them. Thanks.

    By rhandsom on Dec 3, 2012

  15. I see the grid tie seems to give you more watts connected to battery bank but you can only run it for 3 to 4 hrs. Would you be better off to connect grid tie to a charge controllers dump load comming from battery bank, so your batteries are always full and you would then have your grid tie on for longer periods? 450 watts is good but say 300 over 6 hrs is better, and you wouldnt have to watch it! Just a thought, really like your vids and hope you keep them up. Thanks

    By mag7mm1 on Dec 3, 2012

  16. Thanks for your comments. Actually, the GTI’s are run during a sunny day for 3 or 4 hrs. Around noon they are turned off and the batteries are fully recharged to full capacity in approximately 2 to 3 hrs. The Depth of Dicharge is generally not more than 10% during that time. I generate 1.5kW or more during that time. Optima AGM’s are generally good for 5 years if taken care of, a 10% DoD shouldn’t hurt them. Think of what a car alternator and battery does everyday it’s driven to work.

    By rhandsom on Dec 3, 2012

  17. Thanks for your comments. The mppt charge controllers for this 24v system support a max of 400w, 70v & 15A per array. Each panel array is connected in series and doesn’t exceed the limits. Each array without the CC will not generate more than 8 or 9 amps, hense the higher volts for the mppt’s. The fans are there to keep the units cooler during the summer months to prolong life, overheating is not a problem with these. The 2 controllers are there because the arrays are different.

    By rhandsom on Dec 3, 2012

  18. Was wondering if your grid tie is connected to battery bank your battery bank will never fully charge, could this damage your batteries and how could you get around it? I agree that connecting the grid tie to batteries would make the grid tie more effective.

    By mag7mm1 on Dec 3, 2012

  19. did you ever think your charge controllers are to small maybe you can loose the fans in you upgrade your charge controllers.

    By ambrose361 on Dec 3, 2012

  20. Thanks, 2 other viewers were thinking along the same lines. At the time that idea didn’t occur to me, and I know it would’ve worked. But in any case, my current approach also gives me some additional flexibility. Take Care.

    By rhandsom on Dec 3, 2012

  21. Just a thought. You could run those two fans in series on the 24v, without converting to 12v, and running them parallel.

    By davidtwillis on Dec 3, 2012

  22. You can do that, you just need a voltage switch, that turns on a relay when the batteries are full, then shuts off when they start getting low.

    By davidtwillis on Dec 3, 2012

  23. I’ve never heard of anyone doing it either, but it made sense rather than dumping any excess current to something like a heater.

    By Brown969 on Dec 3, 2012

  24. I don’t know if you could wire a dump load to the charge controller. Seems like it would be an excellent way to handle excess power if it works. But again, I’ve never tried it so I wouldn’t know.

    By rhandsom on Dec 3, 2012

  25. Would you know if you can wire the dump load from your charge controller to the Grid Tie Inverter? That way when your batteries are full, you are exporting the energy you’re still producing. Thanks for the tour.

    By Brown969 on Dec 3, 2012

  26. After months away from YouTube I’ve come back to such a huge change; I’m in awe from the progress you’ve made. I hope all is well, and keep up the hard work, it’s great to see all your efforts are paying off!

    By dtader on Dec 3, 2012

  27. Hello! Thank you for this helpful video. By the way, I notice many people keep on talking about Xobotano Home Energy (do a google search), but I’m not sure if it’s good. Have you tried using this alternative home energy known as Xobotano Home Energy? I’ve heard several awesome things about it.

    By Willie Williams on Dec 3, 2012

  28. Yeah we have a very funny cat. He wants to get into everything. Yes, this house is our house I’v been building by myself. I’m planning to have it finished sometime this winter,

    By 2Humans1Dog1Cat on Dec 3, 2012

  29. I was planning on trying that. I hope so. Maybe they’ll do it once they make a new queen and swarm again. I’v always wanted to have my own honey.

    By 2Humans1Dog1Cat on Dec 3, 2012

  30. If you set up boxes wouldn’t they move in and probably stay

    By lovicportryls on Dec 3, 2012

  31. Wow, the house looks great. Love the color :D 

    By LadybugGirlShow on Dec 3, 2012

  32. I love how cat follows you and watches you paint.. so is this ur house that you build youself ? that going move into

    By wolfgirl167Jess on Dec 3, 2012

  33. They did. I guess the tree is hollow up there because they found a hole and moved in. They are about 60ft up and not in the way of being disturbed. I am actually happy they are here. These are honey bees and in the spring they’ll help pollinate our fruit trees. I’v always wanted to have several bee boxes. This is the next best thing.

    By 2Humans1Dog1Cat on Dec 3, 2012

  34. You bet! It will be a big relief to be finally finished. Then I can move on to other things

    By 2Humans1Dog1Cat on Dec 3, 2012

  35. Thanks.

    By 2Humans1Dog1Cat on Dec 3, 2012

  36. Thank you

    By 2Humans1Dog1Cat on Dec 3, 2012

  37. Love the Color …Hope those Bees are not thinking of setting up shop there.

    By TrejoTard on Dec 3, 2012

  38. You have worked on it for so long, I am sure that you will be glad when the house is finished?!

    By b3thann3 on Dec 3, 2012

  39. nice work on the house u been workin real hard keep it up! thats a lot of bees scart

    By jennifer D on Dec 3, 2012

  40. Awesomeness!!

    By uri johannson on Dec 3, 2012

  41. Thanks Terry. It is looking better all the time.

    By 2Humans1Dog1Cat on Dec 3, 2012

  42. Thank you

    By 2Humans1Dog1Cat on Dec 3, 2012

  43. Hmmm, eggplant…It’s more of a dark burgundy color in real life. The areas that are still white in the video will be silver corrugated metal paneling

    By 2Humans1Dog1Cat on Dec 3, 2012

  44. Thank you! The end is finally getting closer

    By 2Humans1Dog1Cat on Dec 3, 2012

  45. Thanks!

    By 2Humans1Dog1Cat on Dec 3, 2012

  46. Wow. The house is looking great.

    By TheTemplemans on Dec 3, 2012

  47. Interesting….. impressive.

    By LordDeff07 on Dec 3, 2012

  48. I like that eggplant color

    By Flexmeister on Dec 3, 2012

  49. Amazing. The house is coming along great and your videos are fantastic as usual. Thank you!

    By ScandinavianMom on Dec 3, 2012

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