How Much Solar Power Do I Need? How to Calculate Your Needs

Connect with me 👉🏼 linktr.ee/understandingsolarp...
In this video, I will cover how to size your solar panels, battery bank, and charge controller so you can build a DIY solar power system that is perfect for you!
SUBSCRIBE to Duet Justus for more awesome videos → / duetjustusvlogs
When asking yourself “How much solar power do I need?,” you first need to know how much power you need to run the appliances that you want.
Online Solar Calculator → www.altestore.com/store/calcu...
------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------
Want to help us for FREE? Shop through our Amazon link → www.amazon.com/?tag=duetju20-20
WE’RE SOCIAL!
Facebook → / duetjustus
Instagram → / duetjustus
Twitter → / duetjustus
EMAIL: duetjustus@gmail.com
------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------
ABOUT DUET JUSTUS
Hi! We are Michael + Jenny Justus. We post videos on our life of alternative + sustainable + healthy living. Our desire to live a more meaningful life led us to concoct a crazy plan: Downsize our belongings, ditch the "9-5," and move full-time into a solar-powered, self-sustainable tiny home on wheels with our two dogs, Chase + Roni. Taking this leap into the unknown has completely transformed our future, so be sure to hit that SUBSCRIBE button, join the Justus League, and follow along to see where the journey take us!
------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------
OUR CAMERA GEAR!
Canon 70d (body only) → amzn.to/2ae3gkQ
Canon 70d Vlogger Kit → amzn.to/2a9Tpkt
Takstar SGC-598 shotgun MIC → amzn.to/2ae3pVB
Windscreen → amzn.to/2ae4VGW
Ravelli tripod → amzn.to/2ae3Zmg
Dolica Monopod → amzn.to/2ae3sAN
LimoStudio Soft Box Lighting Kit → amzn.to/2dZW0fz
LanParte 3-Axis Motorized Gimbal → amzn.to/2dEIFs3
------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------
MUSICAL CREDITS:
Music by Joakim Karud / joakimkarud

Пікірлер: 298

  • @DuetJustusFam
    @DuetJustusFam6 жыл бұрын

    Hey guys. Hope you enjoyed the video. If you know anyone who is interested in DIY Solar Power, it would really help us out if you shared this video and spread the word on what we're doing. Thanks a bunch and we'll see you on the next one! 😎

  • @dragonfly1414

    @dragonfly1414

    6 жыл бұрын

    All I know is winter I used 6.78 kilowatts and summer 7.5 kilowatts, please tell what I need for my inverter and batteries bank, thanks

  • @mwemu

    @mwemu

    5 жыл бұрын

    On the online calculator you used, there was this part '3 String Configuration' in battery connection. What does it mean?

  • @amaodemmy

    @amaodemmy

    5 жыл бұрын

    hi, I'm interested in DIY SOLAR POWER asap. Thanks for the previous uploaded videos.

  • @amaodemmy

    @amaodemmy

    5 жыл бұрын

    How can I get your contact information?

  • @kevinnguyen8612

    @kevinnguyen8612

    5 жыл бұрын

    Wouldn't it be easier to call the electric company to get the monthly usage over 1-2 years and average it out?

  • @tedeljames3356
    @tedeljames33565 жыл бұрын

    I knew next to nothing about electricity and solar power when I found your videos. I had just researched enough to know what watts, volts and amps stood for! That and the basic components of an RV solar system, panels, controller, battery and wires. Your video explanations are so clear that I learned what I needed to know to make a wise purchase when I am ready to do this. I know that I will not install it myself, but I wont be in the dark as a consumer. You are a born teacher! Thanks so much for taking the time to share what you learned from your research and experience in installing your system.

  • @randomspirit
    @randomspirit4 жыл бұрын

    At last! Someone did a video that explains things in the absolute simplest and DETAILED terms. Thank you!

  • @eyewonder3052
    @eyewonder30526 жыл бұрын

    I am currently trying to determine if I can do this myself and your videos are immensely helpful! Mucho thanks!!

  • @BarkatAli-pp9gt
    @BarkatAli-pp9gt4 жыл бұрын

    I highly appreciate your comprehensive explanation! It is very smooth. You are a very good Teacher

  • @bravo20ghost27
    @bravo20ghost275 жыл бұрын

    Seriously, the best videos by far. Biggest thank you.

  • @dallaspierce988
    @dallaspierce9886 жыл бұрын

    Dude, best video ever for newbies (Like me and my dog-Rascal B. Ornery) understanding this!!!! You Rocked this one! yes, you did do it Justus!

  • @TheSevenstrong
    @TheSevenstrong3 жыл бұрын

    I'm working on installing solar on my RV I just bought and your videos are such a big help. Thank you so much your videos are helping tons 😊

  • @Organicarivu
    @Organicarivu5 жыл бұрын

    This is what exactly I was searching brother.. Thank you so much

  • @klouism1
    @klouism16 жыл бұрын

    Very helpful. Prior to this I thought that one would just have to guess what to use if you were not a solar installer. Thanks for the video.

  • @DuetJustusFam

    @DuetJustusFam

    6 жыл бұрын

    Awesome! Glad it helped 😊

  • @joehaney1002
    @joehaney10024 жыл бұрын

    Thanks for all your solar videos that has been very helpful.

  • @duathlete827
    @duathlete8276 жыл бұрын

    I don't need any of the information in this video but have to say you did a great job putting the video together. Looks like the work of a professional. Well done.

  • @lauradutson23
    @lauradutson233 жыл бұрын

    This video is the best info I’ve found. Looking to solar power a tiny home. I’ll be using this!! Thank you!!

  • @spudthegreaterusa8386
    @spudthegreaterusa83866 жыл бұрын

    just wanted to do a shout out on how good your videos have improved, you can tell the last three years have weathered your confidence levels well, your instructions are really informative and i think realistic and not contrived like a bad reality tv show series. I look forward to your January start and the places you two end up going too. I predict that you two will hit 100k subscribers by this time next year if you keep up the good quality video that we've been accustomed to watch. Have a great Christmas with your family and happy trails next year....

  • @Love_I_am
    @Love_I_am5 жыл бұрын

    WOW! This video was very useful! THANK YOU!

  • @ryant2324
    @ryant23243 жыл бұрын

    Very helpful!!! I actually understand this stuff within a day by watching this video

  • @billbrumley1875
    @billbrumley18755 жыл бұрын

    I really like your videos as you make it easy to understand. Thank you

  • @flyingfalafel7748
    @flyingfalafel77485 жыл бұрын

    Thanks heaps mate!!! This would have to be the best explanation on solar set ups and needs on the net. You have a sub right here :)

  • @hamhai0
    @hamhai03 жыл бұрын

    The best way to get the KW reading is to read your house electrical meter, it will show you the amount of energy used. In summer it will show for a household 1KW and in winter it may show 2 or 3 KW as per your heating of the house.

  • @larsturner310
    @larsturner3105 жыл бұрын

    Very thorough instructional video. Nice.

  • @DANIEL-ls5ku
    @DANIEL-ls5ku4 жыл бұрын

    ahhhh the Metric System, simple precise and beautiful!

  • @animesonghits2307
    @animesonghits23073 жыл бұрын

    Thanks duet justus for teaching us how to compute.

  • @llwscott5720
    @llwscott57205 жыл бұрын

    The second of your solar videos I've watched and just want to say you're the best! You make everything so clear I don't feel overwhelmed anymore. Thank you and keep those videos coming!

  • @prizantsproducts4u
    @prizantsproducts4u6 жыл бұрын

    Very thorough/interesting - I think I could DIM! Thank y'all and God bless!

  • @DuetJustusFam

    @DuetJustusFam

    6 жыл бұрын

    You absolutely can. I believe in you 🌞

  • @lickilious2000
    @lickilious20005 жыл бұрын

    Awesome video. Thank you for your help in understanding what I need to do prior to buying solar

  • @pobo6113
    @pobo61135 жыл бұрын

    Thank you for this video. I understood everything you covered ( which is a first). Now I feel like there is hope for me yet.

  • @lustraveller717
    @lustraveller7176 жыл бұрын

    Wow that really helped me understand how to figure my solar needs. Thank you. I'm really looking at flexible solar panels because they weigh so much less but I understand that they are not as, should I say, reliable as the rigid panels. Hopefully that will improve.

  • @Windkisssed
    @Windkisssed6 жыл бұрын

    That was a wonderfully informative presentation! I had already began my list and this video gave me some good ideas to simplify it! Great website also! I love how simple you made it....ANYBODY should be able to figure out their needs! I have a Toy Hauler, so a generator certainly is an option, HOWEVER there are too many times (& places) that I don’t want a noisy generator interrupting my peace. You did a great job putting this all together! I look forward to the upcoming videos!!! Thanks bunches Michael (and Jenny for “taking one for the team”!) Lauri

  • @DuetJustusFam

    @DuetJustusFam

    6 жыл бұрын

    🌞🌞🌞

  • @tonymorisause1631
    @tonymorisause16314 жыл бұрын

    Thank you. Very easy to follow. Appreciate it very much.

  • @fajardorafael64
    @fajardorafael644 жыл бұрын

    thanks a lot for your comprehensive explanation.

  • @jasonwidegren3211
    @jasonwidegren32112 жыл бұрын

    Wow! That’s great advice for how to think about what size of system you need. Thanks!

  • @virginia_in_the_rearview
    @virginia_in_the_rearview3 жыл бұрын

    This information is so valuable to newbies like me. Thanks so much for the great video.

  • @southkoreavideo
    @southkoreavideo2 жыл бұрын

    Fantastic, so well explained. Thank you so very much.

  • @takayama1638
    @takayama16386 жыл бұрын

    Good, Duet! I need to do it.

  • @AKRichardM
    @AKRichardM6 жыл бұрын

    I ended up with 400W or solar and 430 AH of battery and only ended up starting the generator once over 3 months. And that was to run the A/C. The cost for solar is modest though if your rig already has a generator that runs off of the vehicle tank, then the convenience of solar may not be there. Even though we ran a lot of stuff off of the battery including electric appliances and an induction burner, it was rare for the batteries not to be fully charged by mid afternoon. Of course, this was during the summer. I'll be interested to see what you chose for components. Good job on the video.

  • @offgridsolarpr2336
    @offgridsolarpr23364 жыл бұрын

    Interesting information and very instructive.

  • @VictorDiaz-gv5uf
    @VictorDiaz-gv5uf4 жыл бұрын

    Very informative need to watch more.

  • @Lex10999
    @Lex109995 жыл бұрын

    Fantastic video and information. Thanks :)

  • @gabbystephenson2784
    @gabbystephenson27843 жыл бұрын

    wow great video,thanks for the easy step breakdown. i'm new to this so this was a great introduction.

  • @aboiayockaboi5754
    @aboiayockaboi57542 жыл бұрын

    This is very helpful....thank you so much.....

  • @59Wanders
    @59Wanders4 жыл бұрын

    Fabulous i love it. I have subscribed to your channel after watching few videos of yours.

  • @PullipKisses
    @PullipKisses5 жыл бұрын

    This is great! Liked and subscribed

  • @shutthegate8232
    @shutthegate82325 жыл бұрын

    Thanks mate. Great vid.

  • @stephenscott1518
    @stephenscott15185 жыл бұрын

    I love your video explaining solar sizing and set up. I took so many notes. I'm in the design stage of a bus conversion and a concept I've come up with is a tilting mechanism for our many roof solar panels while we are boondocking. My question is whether, in your opinion or any research you have done or come across, of the added benefit of tilting 8 to 10 panels to more directly face the sun vs. a flat fixed location on the vehicle roof? Thanks for your time and again, your videos are very informative!

  • @laminkoroma7801
    @laminkoroma78014 жыл бұрын

    Its good and thanks for helping out.

  • @artbyfaith
    @artbyfaith3 жыл бұрын

    Great information. Thank you.

  • @aaallami
    @aaallami4 жыл бұрын

    Awesome video, great information

  • @DianaSFNg
    @DianaSFNg6 жыл бұрын

    Very informative. I have been wondering how RVers know what they needed in solar panels, batteries, inverters, etc. You have made it quite simple in this video. Thank you!

  • @user-td6rq3oe6g
    @user-td6rq3oe6g6 ай бұрын

    Great teacher

  • @eliakimcharles6931
    @eliakimcharles69313 жыл бұрын

    Very very useful!!!

  • @blendonwhite352
    @blendonwhite3523 жыл бұрын

    Very nice and need every information

  • @gerardhaubert8210
    @gerardhaubert82102 жыл бұрын

    Excellent source of information

  • @DuetJustusFam

    @DuetJustusFam

    2 жыл бұрын

    Thanks for watching!

  • @foretravelman67
    @foretravelman676 жыл бұрын

    Great video Michael! That sizing chart will help for sure. Still deciding between another 5k gen for the fiver and a full set of solar. Decisions, decisions!

  • @DuetJustusFam

    @DuetJustusFam

    6 жыл бұрын

    Decisions, decisions indeed! If it helps, we absolutely LOVE the freedom of solar. Good luck.

  • @rogerkern
    @rogerkern6 жыл бұрын

    Very good info. When I started learning solar I kept combing back to one issue. Battery weighs approx 75lbs times four. And you can only drain it to 50% so I’m carrying around half a battery I can’t use.. so search was on for life of battery and excess weight that’s useless cost compared for that and extra fuel used. In 15 year period about 5 grand so after meeting a solar expert we talked about one batter and 48 volt system with charge controller etc 12k and 25 year battery life I can drain to literally 0 and can run the a/c 4 hours a day on solar or not run it and can last four days with not needing to charge that one battery. Yea a ton more $$ up front but long term much cheaper

  • @larrybland007
    @larrybland0072 жыл бұрын

    This tutorial was very realistic for me I can clearly understand that I am throwing money and energy away in my home. Using an off grid solution is exactly like planning for a life at sea where there can be no room for excessive consumption.

  • @anthonyrichardson7543
    @anthonyrichardson7543 Жыл бұрын

    Very informative

  • @jandupreez367
    @jandupreez3674 жыл бұрын

    Thank you this is a great video and very helpfull

  • @Bigrell0326
    @Bigrell03264 жыл бұрын

    Thank you EXCELLENT, just found you!!!!

  • @Poncho758
    @Poncho7585 жыл бұрын

    Your the best. Thank you much

  • @dominicsanthuff
    @dominicsanthuff3 жыл бұрын

    Thanks super helpful subbed since you're from mo too 🤘

  • @allanlindsay1330
    @allanlindsay13303 жыл бұрын

    Hi Guys, Very interesting thank you for making the great videos 👍

  • @edt2378
    @edt23784 жыл бұрын

    Thanks Great Video!

  • @sulemanalakeel3886
    @sulemanalakeel38863 жыл бұрын

    Very useful and clear. Thanks. Greetings from Saudi 🌹

  • @ranjan_v
    @ranjan_v2 жыл бұрын

    Thank you

  • @TomandLoriRVLife
    @TomandLoriRVLife6 жыл бұрын

    Awesome videos! Very helpful as we put ours together! :)

  • @raheemh.9891
    @raheemh.98914 жыл бұрын

    Bravo! Thanks .

  • @honestyfaithful
    @honestyfaithful6 жыл бұрын

    Just found your channel AWESOME!!! We are newbies to the solar world but want to go totally off grid. We do not use any 220 lines in our house no TV,cable ect. Getting a sundanzer freezer. So basically lights and kitchen appliances will need power. We use wood yo heat. Trying to figure out what we will need. Of course the solar company in our area is pushing the biggest most expensive system.... what do you think ? We are in the south western county of NC in the mountains. Our house faces south on one end. Panels will work on the roof...... thank in advance

  • @GEMINIBD
    @GEMINIBD4 жыл бұрын

    good day this video is very helpful to me. to learn what system i will be needing for off-grid system. the next step is cost and budgeting

  • @annetterose8631
    @annetterose86314 жыл бұрын

    Hi love your videos easy to follow, Can you use different size solar panels to make up your wattage

  • @mobinarghandewal7044
    @mobinarghandewal70443 жыл бұрын

    thank you for your lecture and how i can find that above software that you solve the example

  • @lisas7389
    @lisas7389 Жыл бұрын

    Very good video

  • @fodcade40
    @fodcade405 жыл бұрын

    Thanks brother

  • @abiarani4985
    @abiarani49855 жыл бұрын

    Thank you! At least I have now idea.

  • @donaldpaivu6901
    @donaldpaivu69013 жыл бұрын

    Best, i just subscribed.

  • @barrellcooper6490
    @barrellcooper64903 жыл бұрын

    I realize this video is 2 years old, so don't know if it's getting much attention. I wanted to share what I did. I came at the sizing approach from a different direction. I have 5kW generator that will run all loads I have except HVAC, Water Heater, Range. Etc, Basically the only 240 V I want to be able to power is the well. I could run everything including the well with the 5kW generator. This gives me an idea how big the inverter needs to be. By turning off the big loads and taking electric meter readings I could come up with an actual daily use without looking at every little load. I ran between 4 and 5kWh day.

  • @michaeltina3866
    @michaeltina38663 жыл бұрын

    VERY NICE VIDEO

  • @rcdoodles6214
    @rcdoodles62144 жыл бұрын

    My current Excel Energy utility bill shows my daily and monthly kwh data so I presume going through the spreadsheet exercise is not necessary, but very interesting to see how to calculate. Thanks.

  • @maninavan.2043
    @maninavan.20435 жыл бұрын

    Hello. great video. I have three s/panels 180w combined - a 2000w inverter and 5 batteries 410ah. I power a tv. DVD and l.e.d lighting... Q. am I over doing it a little? I live full time in a converted long wheel base van all yr round in the UK.

  • @drakesshion3174
    @drakesshion31744 жыл бұрын

    Thank you for this video but I realise everything everything u running are DC what size inverter will I need for this will it be the same amount of total wattage per day used?

  • @consawareness1959
    @consawareness19595 жыл бұрын

    Its very useful

  • @wasswajimmy7720
    @wasswajimmy77202 жыл бұрын

    Yo the best boss thanks much

  • @ZuhairAlsagar
    @ZuhairAlsagar5 жыл бұрын

    thank you

  • @olaniyankehinde309
    @olaniyankehinde3094 жыл бұрын

    Hello. I love this video. It really great.. Buy I have a i question.. The calculation above. Please how many batteries do you derive to? In rate of 12v/200ah..

  • @eyuelteshome5012
    @eyuelteshome50124 жыл бұрын

    thank you very much for sharing the ideas. but i cant get the solar calculator.please help me how to size the components manualy?

  • @HikerBiker
    @HikerBiker5 жыл бұрын

    Being new to RVing and diving into it by building my own van conversion I literally have know way of knowing how much power I'll use per day. My biggest power draw most likely will be my cooler/fridge, computer and TV all of which I hope to run on 12DC. My plan is to live full time and I will be solo but since my activities include various mountaineering activities year around as well as self contained bicycle touring i'll also be traveling/staying in all weather/temperature conditions. So since living in an RV is not the same as unlimited power usage in a house I'm lost right off the bat. My best guesstimate based off watching KZread videos would be around 400W panels but I'm not sure if I'll have the room on my Transit van, any suggestions?

  • @kulkiikan8643
    @kulkiikan86433 жыл бұрын

    I like your eplaination... think it will help me later.

  • @rikujkoivisto
    @rikujkoivisto5 жыл бұрын

    Hi! You are the dude, i want to ask.. I'm going to buy fev 285w PERC- panels, they told me, Perc-panel is the best. Is that so..? I'm beginner, but very exited to learn more about solar power! Could you help me..?

  • @shamaaljanabi6940
    @shamaaljanabi69408 ай бұрын

    Hi do you have any information about sizing pv system based on intelligent techniques used to labview

  • @joehaney1002
    @joehaney10024 жыл бұрын

    I am just getting into the solar panels which I have four panels 25 watts each Hundref Watts total wired in series I believe each panel has it's own wires which plug into a 4 way that plugs into my controller. When i install my four 6 volt batteries in series and parallel then connect my modified inverter to plug in my 30 amp RV will I do any damage to the inverter in the RV? My inverter is a 1000 watt. Right now before I got solar I just hooked up my 1000 watt modified inverter and plug my RV into it and leave my truck running to run coffee pot and tv in mornings

  • @reymartmanablug2965
    @reymartmanablug29654 жыл бұрын

    Hello im your new subscriber. I have question.what is the best connections for 5k t 100 kw design? Is it series all over or parallel or series parallel. Thanks

  • @megsman4749
    @megsman47495 жыл бұрын

    For home use, looking at the electricity usage on my bill would give me the total per day.

  • @emmanuelkafui4291
    @emmanuelkafui42914 жыл бұрын

    Good afternoon Can you please advice me on what will be required to install a 150kwp, 50kwp and a 3kwp each solar power ? How many inverters, solar panels, batteries charge controllers and other requirements? Counting on your advice and quick response Thank you.

  • @admiralrob777
    @admiralrob7776 жыл бұрын

    Hi ok I need to make a appointment for 3yr from now on the solar

  • @fionawright2512
    @fionawright25123 жыл бұрын

    I am trying to work out my solar needs for a camper conversion. In the spreadsheet should I be finding the Watts for the chargers or the devices themselves? They have different values. Help!

  • @ineelengmotlalekgosi5264

    @ineelengmotlalekgosi5264

    3 жыл бұрын

    Fiona Wright chargers, unless devices are plugged directly without chargers, eg 12v bulbs

  • @areusure7551
    @areusure75516 жыл бұрын

    Hi, Awesome series that you have here, so thanks for your efforts really well done. I do have a question or 2 if possible, hope u can help. If i wanted to run a Computer system for 24 hours a day, my computer system has a 1000W power supply. The thing is i have a 1000W power supply but i am not maxing out the Power of that supply, My power meter is only reading under 450w. SO my question is, Should i still calculate of the MAX potential Watts of my PSU or what my computer is actually using. This is the same for the battery bank? My other question is, If i want the Bank to power my PC through out the night and recharge throughout the day, do the panels need to produce double the watts needed during the day so it does the recharge? For example uses 400w meaning panels need to produce 800w during the day to power PC and charge batteries for nights usage. I hope this makes sense, Thanks again

  • @DuetJustusFam

    @DuetJustusFam

    6 жыл бұрын

    Hey 👋🏼 send me an email (duetjustus@gmail.com)... this numbers sound astronomical for a computer. Make sure you are looking at the output wattage on your power supply. An iMac is 217W max and our MacBooks are 85W

  • @rey_nemaattori

    @rey_nemaattori

    4 жыл бұрын

    @@DuetJustusFam Depends on your machine. I used to own a 2 cpu / 12 core gaming rig with two MSI R7970 graphics cards which, if ran at full power, easily pulled 800+ watts. The PSU was rated for 1200Watts, as the motherboard actually had room for 2 more gfx cards, never got to install them though. It actually heated the room it was in to unbearable levels during summer... But it's very unlikely you would run that 24/7 in an off-grid setup / camper van anyways.

  • @jackmason7518
    @jackmason75182 жыл бұрын

    Good Morning. I’m going to install 2 new 200W solar panels. The question is Parallel or Series. I have heard the Series is not as good because of shading you lose some of your power. Yes the Amps are around 10Amps with 40 Volts and Parallel the Amps are higher at about 20A and the Volts are lower at 20V . All so I read some ware the solar panels need to have a voltage around 20 to 30 volts above the battery voltage Do you have any thoughts on this. Thank you Jack

  • @abdimalikosman2434
    @abdimalikosman24346 жыл бұрын

    thanks for your help i really enjoyed and waitin your nex vedeo if Allah says

  • @ajhall9718
    @ajhall97183 жыл бұрын

    Hi.. I need help please. I'm a tinyhouse person, I didn't build it. It's grid tie exception is toilet. I'm planning on getting 5 x 480w panels, I have an eccoflow delta 1300 to power the house (fan, fridge, occasional lights) how can I put the panels up and wire it to my house w/o pulling out the current setup? Also I'm thinking of doing 48v sys

  • @laychanrithy5387
    @laychanrithy53875 жыл бұрын

    Hello I want to install my solar 12v 50watts to my battery but I don’t know how many Ah of battery 12v I should use . Can u tell me it the best one ? How many ah that 50watts can charge in a whole day ?

  • @flame-on-3
    @flame-on-32 жыл бұрын

    Hey am I missing something here, On the load charts presented in the output wattage column, it's like he has been presented with the correct wattage first and worked backwards on the P=VI formula with all different voltages except the voltage will be fixed at what ever voltage the system is -240v/110v/24v/12v