Make your own Photovoltaic Off-Grid System

  • Added:  2 months ago
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    More project information on Instructables:

    Parts list (incomplete, see Instructables for more information):
    100W Solar Panel:
    Solar wire + MC4 connectors:
    Solar Charge Controller:
    12V 100Ah Battery:
    Battery terminals:
    Reed switch:
    LED strip:
    100W Solar Panel:
    Solar wire + MC4 connectors:
    Solar Charge Controller:
    12V 100Ah Battery:
    Battery terminals:
    Reed switch:
    LED strip:

    In this project I will show you how I combined a 100W solar panel, a 12V 100Ah battery, a solar charge controller, an inverter and many complementary components to reconstruct the electrical wiring inside my garage and create a photovoltaic off-grid system.

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    Ecstatic Wave, Jens Kiilstofte

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  • Science & TechnologyScience & Technology
  • Runtime: 7:40
  • solar  panel  system  off grid  off-grid  off  grid  diy  tutorial  how  to  make  project  guide  installation  photovoltaic  battery  12V  deep  cycle  lead  acid  charge  controller  mppt  pwm  wire  wiring  roof  sun  inverter  socket  switch  light  LED  reed  contact  electronics  greatscott  greatscott!  cell  AC  DC  

Comments: 865

  • GrandeCalle
    GrandeCalle 4 hours ago

    Hey kannst du mir bitte schreiben was das für Clips sind die du da zum befestigen der LED stripes benutzt? Ich plane eine Kapazitivefüllstandsmessung für einen 6m tiefen Brunnen und möchte dazu zwei dicke isolierte Kupferleiter parallel nebeneinander an der Wand befestigen. Die Clips sehen dafür geeignet aus.

  • Joey Mac
    Joey Mac 17 hours ago

    I would think you would need a bank of batteries for the inverter and power sockets. Are you getting enough power ?

    DESCENT 2 days ago

    well nice!
    but: your phone app shows 16V.
    isn't that a bit much for a 12v battery? they max out at around 14.6V
    any additional voltage cooks the acid away.

  • george anastasiadis
    george anastasiadis 8 days ago

    may i know the reason why doesnt allow ac and dc cables together?
    and why he used warm and cold white ?for the led strips ?
    i want to build the same in my garage...thank you so much

  • Muffin
    Muffin 9 days ago

    Tolles Projekt, top umgesetzt nur sollte die Garage mal von innen verputzt werden.

  • Tuong Bui
    Tuong Bui 17 days ago

    Your garage door is under the ceiling instead of being next to the wall? Why do you need 3 kinds of wires to connect the led, switches, relays, inverter, socket instead of 1?

  • bleach2427
    bleach2427 17 days ago

    This video is great, im currently doing a call in this. but is was wandering how do you connect it to your distribution box of an home installation? plz

  • Leo Spinoza
    Leo Spinoza 18 days ago

    this is a very creative..

  • Israel Surio
    Israel Surio 20 days ago

    this guy is a genuis, almost everything he wants to create he creates it lol.

  • James M.
    James M. 23 days ago

    that is the neatest hand writing i have ever seen from a fellow lefty.

  • AviAceC130
    AviAceC130 25 days ago

    I have a (probably dumb) question. What is the point of the inverter if everything runs on 12v dc?

  • Ananta Prasetya
    Ananta Prasetya Month ago

    hello, would you like to build a solar power monitor based on ESP8266 (ESP8266-12E)?
    me the esp is an interesting topic and its more flexible because it has
    onboard wifi and we can connect it easy to a wifi and become IoT
    device, so we can monitor the energy of the solar panel with our own
    what do you think?

  • Brad Builds
    Brad Builds Month ago

    can i please send you a tape measure?

  • Speketwome
    Speketwome Month ago

    I would love to see a series of refurbishing the garage. I think it would fit very well

  • Akshat Mullick
    Akshat Mullick Month ago +1


  • DarkCrusader6
    DarkCrusader6 Month ago

    Great Scott: Are you an electrician or an electrical engineer or something because I am studying electrical engineering in college with an interest in solar energy and this video is amazing!

  • Sree  Kumar
    Sree Kumar Month ago

    Thanks. Appreciate the effort.

  • Iboo30
    Iboo30 Month ago

    You should never mount a solar panel completely flat. In addition to a decreased efficiency due to it heating up you will have severe power losses after a short while because dirt and debris and rain will stay on it and won´t be flushed down. It´s like you have a permanent shadow so it´s only operate on 1/3rd of it´s original power or even less depending on how many bypass diodes the panel has built in.

  • Masood Salik
    Masood Salik Month ago

    What type of measuring scale he have?

  • Ramcin TZP
    Ramcin TZP Month ago

    Awesome! =D

  • Morgan Prs
    Morgan Prs Month ago

    just for LED ? And motor for automatic garage ?

  • Herr Mustermann
    Herr Mustermann Month ago

    Why should AC and DC cables be mounted seperately

  • Kourosh Tavangar
    Kourosh Tavangar Month ago +1 where getting 57w out of your panels if you had a space between your panel and roof you will get more power because you have a mppt charge controller

  • WorBlux
    WorBlux Month ago

    The conduit going through the roof ought to have proper flashing, and not just sealed with goop. The solar panel should at minimum be mounted on some standoffs, both for cooling and ventilation behind the panel, but also to allow water to run down the roof unobstructed.

  • TheOnlyBlockHeadFred

    All I heard was "Bitchy Men"

  • Skirmitch
    Skirmitch Month ago

    Hey dude, awesome video as always. I'm curious abour the awesome-looking connectors u used inside the boxes, how are those called?

  • Alexandar AS5
    Alexandar AS5 Month ago

    Can you make some tutorial for volage comparator with bjt

  • Joseph Brendel
    Joseph Brendel Month ago

    GreatScott we thought panels did not like it real hot!?! all the other videos we have seen say to make sure there is a gap for ventilation?

    • GreatScott!
      GreatScott!  Month ago

      That is definitely recommended. I mounted it like this so that others can not see it.

  • Marek Tkacz
    Marek Tkacz Month ago

    What if the hail starts to fall? You said that the cells ale very brittle

    • Marek Tkacz
      Marek Tkacz Month ago

      Thanks for answering :) That makes sense to me now.
      Keep it up with your great job :)

    • GreatScott!
      GreatScott!  Month ago

      cells are brittle but not the panel housing around them.

  • foto1now
    foto1now Month ago

    Conduit should run all the way into the box!!

  • budi isnadi
    budi isnadi Month ago

    such neat and safety conscious work! I've seen several solar panel sloppily installed, it always failed after 6 months.

  • Jeff Pittman
    Jeff Pittman Month ago

    This is one sweet setup!

  • ****** ******
    ****** ****** Month ago

    nice project but why you don't put a 100w LED instead of strip LED is was more efficent because that Le d 100w run on 30v and drau about 3 ah and whith a step-up is was good this just my opinion i m not a big electric inginer i learn everything my self

  • Joe Madden
    Joe Madden Month ago

    @GreatScott Why did you run the conduit up to the junction boxes and leave a gap? Why not run them into the junction boxes for full protection?

  • david
    david Month ago

    Wie es schon manch andere geschrieben haben: du solltest das Panel nicht direkt aufs Dach kleben, da es sehr schnell warm wird

  • Rob H
    Rob H Month ago

    Real guys do it first and work on the fly. If that doesn't work then we look up this guy. :)

  • Willeexd
    Willeexd Month ago +1

    What would happend if u short dc to ac

  • CoolKoon
    CoolKoon Month ago

    Eh, this is quite a nice video about a small solar system. Too bad it just reminds me of the fact that I'll probably never be able to build something like this, because the dirty scumbag utility companies would never allow anything like this near their systems, not even an independent parallel run.....

  • Jean-Luc Coulon
    Jean-Luc Coulon Month ago

    The solar panel would have a better efficiency if slanted (about 40 to 45° in Western Europe) and with a South orientation.
    The difference with an horizontal panel is really huge.

  • Bitelaserkhalif 555

    the only problem is the panel

  • NRC073
    NRC073 Month ago

    Would recommend using same wire size from solar panel to controlled for the controller to battery. Then biggest cable you can add from battery to inverter.

    free advice.

  • didier dlx
    didier dlx Month ago

    Hi . just one question : whats the final price of this project ?

  • Folxs Galaxy
    Folxs Galaxy Month ago

    Why did You used cold and warm LEDs?

  • honza0022
    honza0022 Month ago

    Does anybody know what is the name of the connectors he uses to connect the wires?

  • Daniel's Game Vault

    All those electronics must've cost a fortune - probably would've been cheaper to pay for a connection to the grid :))

  • Brosilio
    Brosilio Month ago

    You should have pressure-washed the entire inside of your garage before you installed all that stuff

  • BrotherBrine
    BrotherBrine Month ago

    why dont you get a tape measure 1:00

  • Michael P
    Michael P Month ago

    I have the same situation in my shed and had been thinking about an off grid solution. This vid demystifies what I thought, was a complicated task. Thank you mate, for making it so simple for us noobs :)

  • mikas samuelis
    mikas samuelis Month ago

    please make video!!! how to make 3s lithium battery charger

  • acynder1
    acynder1 Month ago

    I love your videos, but that solar cell glued on te roof.... yeah I know, its for keep all easy, but I study how to install solar sistems so you can imagine...

    Anyways, I hope that works for you!

  • Ted Timmons
    Ted Timmons Month ago

    I just finished my off-grid shed power. I kept everything at 12v, no need for AC :)

    okay, there's a small inverter to power my portable tool chargers.

  • Month ago

    Hello, could you speak German?

  • tatzecom
    tatzecom Month ago

    Your nearest home improvement store is a Globus Baumarkt, isnt it? :D

  • Orang atang
    Orang atang Month ago

    greatscot turns eco friendly! i dont get why a garage would have an electrical system installed and would not get power.

  • ammarul arrif
    ammarul arrif Month ago

    scott I hate scheaking my dryer if it done.Can you make some thing to know if it done or not AND make it wireless if you can

    if you see this commend and make it thx

  • Ragu Nathan
    Ragu Nathan Month ago

    how to increase power without change the voltage level . Is it possible to increase current without changing the voltage level? plz give some solutions

  • Dylanfoxay gameh
    Dylanfoxay gameh Month ago

    awsome vid by the way :)

  • Dylanfoxay gameh
    Dylanfoxay gameh Month ago

    scot one question..i dont know alot about electric components..well..a tiny it safe to touch the wires...also the conjunction box are made of plastic..wont they catch on fire

  • Will Niendick
    Will Niendick Month ago

    Hello Scott,

    I've worked with an electrician before. He said those orange and clear adapters on the inside of wiring kits start fires. Maybe you should remove them.

    • GreatScott!
      GreatScott!  Month ago

      +Will Niendick I am electrician and my assistant is an electrician and those wago terminals are common.

  • HyTeYT
    HyTeYT Month ago +2

    Hornbach. Yippey YayYay Yippey Yippey yeah!

    • HyTeYT
      HyTeYT Month ago

      Ja sind beides meine LieblingsBaumärkte aber Hornbach hab ich am Preisschild erkannt xD

      D3FTIGE KOST Month ago

      HyTeYT Hornbach bester Markt.
      Aber Bauhaus in manchen Bereichen höhere Qali und Auswahl.

  • leppy
    leppy Month ago

    You Should Go Through Making your own Grid Tie Inverter

  • Peter Turner
    Peter Turner Month ago

    Great Stuff!!!

  • Ashwath K N
    Ashwath K N Month ago

    Make a MPPT charge controller please

  • electronic world
    electronic world Month ago

    sir, you know what? a channel has free booted your videos without​ giving any credit to you.

  • firebird95driver
    firebird95driver Month ago

    Let me live in your garage.

  • embren11
    embren11 Month ago

    How long is the battery life for night use?

  • Makarov Fox
    Makarov Fox Month ago

    i love this type of videos

  • Antonio
    Antonio Month ago +3 this guy is stealing your videos.or you have second chanel called Dorene Mandie?

  • I changed My username

    bitchy-men :D

  • Upcycle Electronics
    Upcycle Electronics Month ago +1

    Now just add a HHO setup with a hydrogen gas separating setup. and use your surplus power to generate a useful fuel source.

  • sucotronic
    sucotronic Month ago

    I'll suggest to add a breaker switch just after the inverter 😉

  • Ondřej Petrlík
    Ondřej Petrlík Month ago

    I like how accurate and careful you are. Do you not tell us any crap, thumbs up for mention of dividing DC and AC into two tubes. I see you have good education. Love your videos.

  • Ethan Turner
    Ethan Turner Month ago

    Why did you have to make it where it only turned on if the garage door was open? What if you wanted to work in there with it closed?

  • valveman12
    valveman12 Month ago

    I like it!

  • Code Junkes
    Code Junkes Month ago

    If you angle your solar panel to the angle = to your location's latitude degree, that will be best efficiency angle for non-rotating solar panel.

  • Arthur V
    Arthur V Month ago

    Just a suggestion: What if you made a video of a li-ion 9v battery with built in charging cuircuit from usb, I want to build one myself 😉
    Keep Up The good video's!

  • Edward Arruda
    Edward Arruda Month ago

    Excellent!! I might even do this in my home. Thanks Great!

  • Raul Cabe
    Raul Cabe Month ago

    Amazing and accurate work! good job Scott

  • Tom Louwell
    Tom Louwell Month ago +1

    Hey Scott, Is it safe to use Modified Sine Wave Inverter on LED TV's, LED Bulbs, Fans? Everytime i plug my TV on my MSW Inverter, it produce little noise at the back of the TV. Btw, I only use my Inverter for 2-3hrs power outages.

  • roop90
    roop90 Month ago +1

    Hey Scott. Watching your videos I came across some ideas. Would a combo of a small 5v Solar panel + 5.5v 4F Supercap be enough to power an 5v or 3.3v Microcontroller (via buck/boost converter) over a long period? Could I also power a small 5v Servo Motor with that?

  • Michael O
    Michael O Month ago

    What kind of pin in that you uses to mark the pipe? I want one!

  • Ian Colquhoun
    Ian Colquhoun Month ago

    Reed switches can be Normally Open or Normally Closed.

  • akshay Kadam
    akshay Kadam Month ago

    please make a video on nixxi tubes

  • vignesh kailas
    vignesh kailas Month ago

    is the zip tie enough for the inverter box

  • Jet Addict
    Jet Addict Month ago


  • Javier Corado
    Javier Corado Month ago

    Would it be better to usea an optocoupler instead of the relay? That way you are avoiding mechanical troubles within the device

  • fischele
    fischele Month ago

    Don't watch unless you want to deal with free energy videos in your recommendations.

  • Hichem Naami
    Hichem Naami Month ago

    Nice work :)

  • Tiago Medeiros
    Tiago Medeiros Month ago

    Loved this tutorial Scott!

    I'm assuming that solar controller you used is MPPT?

  • Effdottelles
    Effdottelles Month ago

    But you did use ferrules on that charger box later on... didnt you?

  • Игнат Артурович

    Here in my garage we have knowledge of wires.

  • OverSoft
    OverSoft Month ago

    Never ever mount a solar panel flat on the roof. Rain water and dust will not run of the panel. Even a 1 or 2 degree angle would be better than this.
    This also helps with the heat.

    Oh, and that bitumen won't hold it, as the frame of the solar panel expands and contracts every day.

  • couldbelaster
    couldbelaster Month ago

    Very nice and useful project!

  • Brendan
    Brendan Month ago

    Hey Mate, I enjoy your videos, keep up with the good work! Cheers from Western Australia !!!!!!!!!!

  • orshemesh1213
    orshemesh1213 Month ago

    Wow. Amazing!

  • sami symbian
    sami symbian Month ago

    Hey scott Great job!!!!! , but whose hands are those ?? who's helping you ??

  • Daniele Vetrucci
    Daniele Vetrucci Month ago

    Is the inverter always on? It can discharge the battery.

  • David Dennis
    David Dennis Month ago

    The materials you use are so different from what is available in the US. Looks like what you have is much easier to work with. Love the Bluetooth feature on the charge controller!!!

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