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  • a perfect solution to save more energy! =)

  • @robinclark8989

    Thanks for your guidelines....

  • Hi Dan,

    I've got a couple of 68 Watt flexible solar panels that need to be connected to a solar charge controller. Since each panel will have a pos and neg wire (4 wires total), how do I connect these 4 wires to the pos and neg terminals of the controller? Do I simply twist together the 2 pos wires (likewise with the neg wires) and connect the combined wires to the controller's pos/neg terminals?

    If anyone else who reads this has the answer, I would very much appreciate it as well. Thanks.

  • how many amps of battery do i need for my 40 watts 2.2 amps of solar panel

  • Hello there,

    I was given a photovoltaic module, brand-new. Although the top resin is cracked, it works, but since I am not an expert I need your help. It's a Tyco Electronics, produces 36, 6 Volts, 7.5 Amperes at 238 Watts; it's big. Is it normal that it won't light a 12v car bulb? It lights Led bulbs though. I was thinking of using it indoor under my loft's window, it's as big as the module. What parts do I need to get it working? What size battery and inverter and other things would I need?

  • Wonderful!

  • I'm looking to power my TV, Playstation, laptop, PC, small fridge and a lampshade from solar power. However I'm a complete newbe, is there one specific book that'll enlighten me?

  • at 2:46, the claim was made that the power output is increased because the current increased to 1.5 amps.

    This isnt correct. The power output is actually constant in both configurations (ie when 3 panels are wired in parrallel or in series)

    Power = Voltage times current. (P=VI)

    So for 61 Volts at 0,5 amps you get a power output of about 30 Watts

    And at 21 volts and 1.5 amps you also get about 30 Watts.

    slip of the tongue perhaps

  • watt solar panel since the charge controller can handle 20 amps. while the harbor freight charge controller can only handle 4 amps. I hate to hit you up with all these questions but I don't know anyone local to ask. I wish they had college courses 101 on how to learn about solar for private home use.

  • I wanted to also mention that I got a really good deal on someone who sold me 100 watt solar panel and another charge controller. I placed it up on the roof next to the 3 panels and wired it separately to it's own charge controller and then to the batteries. So basically I have 2 separate kits to one battery bank. I just did this and have hopes this extra 100 watt solar panel will bring my voltage up to 13.5 to 14 volts. Is it ok to do this or should I wire the 3 solar panels into the 100

  • solar panel with only one wire and do I have to run three seperate wires to the charge controller or actually 6 wires with 3 positive and 3 negative. I made the decision to use just one wire 16 gauge to the controller. I have 2 new everstart batteries 29 with each having 125 amp hours for a total of 250. I have noticed that I am not getting the voltage I see from other people who show 13.5 to 14 volts and I am lucky to get 12.1 or 12.2 It won't go any higher. Am I doing something wrong?

  • Hi Dan, I really enjoy your videos and wanted to ask a question. I recently got my first Harbor Freight Solar Panel Kit and put the 3 panels up on the roof but where my charge controller and batteries are at is about 25 feet away. The wires that come with the solar panels aren't long enough to make it - my question is can I cut the ends off the solar panels where you mount to the charger controller, wire them together (positive to positive and negative to negative and then ad the wire to the

  • What would happen if you had them wired in parallel (pos. to pos., neg. to neg.) and one panel got shaded? What would happen if they gave out different voltages?

  • @MacOSJoey hmm,, something bad would probably happen, hopefully nothing at all (aka no power) but since the generate power untill theyre in pitch black darkness I wouldnt try it.

    in series I know the higher voltage panel with damage/destroy the lower voltage ones. :-(

  • positives negatives positives negatives aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

  • Nevermind.  4.5 amps.

  • Correction, I meant 1.5 amps in parallel configuration - brain fart.

  • Whether its solar or wind it is just the input that is changing, the other equipment is the same. HF panels are AS-si. The shade/clouds will not affect them as much. Figure 4.5 amps for each kit (peak). You could run small motors or lights with it. Series would be higher voltage/lower current (see this video). Parallel would be the same voltage (15) at higher current. You would need to hook them up in series to use an inverter. For a 12V system in your camper use a parallel setup.

  • How do you figure out how many of the Harbor Freight kits you need to be able to be off the grid? Say you take your highest electric bill, what do you look at? I would love a video that explains how to figure that out, then how to do a system like that. Say you do everything and then hire an electrician to hook up to your fuse panel? Maybe you have something like that...I'll keep looking.

  • @tyblossom If you want to go off the grid most people will tell you not to use HF panels b/c they are only 15 watts. You probably would want at least 50w and preferably 100-300 watt panels b/c the cost per watt of the HF panels you would end up spending 3 times as much to get the same power per watt. If you buy the HF kits you are at least $3/watt for 45 watts. You want to be between $1-$2 a watt at today's prices.

  • @jhs5150 Thanks. On ebay that the 50W's are so much more expensive than the HF kits. I'm so not of an electric type mind, but watching the videos,the HF panels have made me think I can set up a system. If I wanted to start slowly and as economically as possible, can you help me understand what I'd need to do? Where would I get the best price on 50W panels, what invertor and controller would handle a whole house? What batteries are best to buy?

  • @jhs5150 If I start putting 6 panels up, buy the invertor, and controller, have an electrician hook them up to my fuse panel, and then I can add more panels. So many of the tutorials are confusing to me since I don't "get" watts and amps and all that other stuff. I really don't want to "get" it. I just want a small system that can grow. I did look at my electric bill and we use some months 500 and some 1600(kilawatts?)

  • @tyblossom This guy and Econewpower have the best videos on youtube to watch for info on this. I am going to get a couple of HF kits as kind of a science experiment but plan on getting higher watt panels when I do it for real. I used to work for a solar mfr. so I know a little about it. Look for Amorphous Silicon (AS-si) panels if you can get them b/c they provide power even in cloudy conditions. The other types (mono and poly chrystalline) put out more power but only in direct sunlight.

  • @jhs5150 I've seen those videos and that's what made me think I could do it. I get a little confused when he goes inside and he has things for the wind next to the solar. I'm confused too about hooking them up in parallel, or in series. I saw that if you hook them up and one is in the shade, that can throw the whole thing off. I think I will get a kit at HF and set it up maybe on our land with a camper and get an idea of what kind of juice I can get from it etc.

  • Anyone tried doing this with 2 series and 1 parallel? I guess in this example with 2 X voltage and 1.5 amp?

  • this is not a good video for novices who know nothing about electrical engineering or physics

  • hi dan and all could somebody give feed back on a pure sinewave inverter from taiwan model

    I-p-3000/24v/6000 peak/built in 24vdc charger ps over there they call it true sine wave

    is that a pure sinewave still or just playing on words PLEASE RATE THIS inverter

  • Awesome fountain of information ; these green science people......

  • If You Want To Make Your Own Solar Panels Easy & Fast, Than This Is Your Chance To Change Our Childrens Future And Go Green !

    Enjoy :) squidoo(dot)com/green-future

  • so I have 2 harbor freight kits. total 90 w.

    all negs to one buss bar, all positive to a bus bar.

    What type of wire do I run from each bus bar to my

    controller? Your help would be great.

    btw.. I am charging golfcart batts rigged in series to make the 12

  • Mains power to start elec motor at 1430rpm a series of pulleys and 10 kg flywheel

    the AC alternator brand new 5kw runs at 3146rpm PS it is the same specs as done by Chas Campbell chapter 2-1 free energy devices.When switching from mains power to feed the AC alternator back on to the elec motor it does not work when switching over

    to AC alternator which is running aprox 3100rpm do you have any ideas why Dan? or anybody

    would be appreciated PS keep up the excellent work from Den

  • Hi Dan. What size inverter do I need for a single family home with a 220v well pump? Thanks

  • @TheDigitalWeb Depends on your house kwh per day. For non grid tie double the consumption on the run side not the inverter peak. Buy a few smaller units vs one large, Spreads the cost in case of inverter crash.

  • @TheDigitalWeb What do you mean by "For non grid tie double the consumption on the run side not the inverter peak" ? I'm a newbie also. Sorry to be a nerd, but I'm learning as I go. Do you mean 2 inverters on two solar systems?

  • I want to mainly go GTI but also I want to float charge my small battery bank for when/if the grid goes down. I have 3 PV panels 500W total each running 24V and I will run them parallel to a 30A 12V/24V LCD Display Solar PWM Battery Charge Regulator "CM3024Z". I need to know if I parallel my pos and neg wires from my solar array to the GTI and also to the charge controller that that setup will accomplish 1. keeping my batteries float charged at all times and 2. any excess to go to grid tie.

  • Yeah, it's a series connection to increase the voltage and parallel to increase the amperage(current)...

    Nice video, though...

  • Hey EXPERT, it's called series and parallel, not "positive and negative configuration" and "all the positive to one terminal and all the negative to the other."

  • Dear Brother,

    I have seen you video, and really appreciate for this. I will be very much obliged to you, if you kindly help me to know - what do I need for 1(one) Kw system for my house. Kindly note I am living in Karachi, Pakistan.

    Waiting for your kind reply please.

    Kind regards.

    Your faithfully,

    Yemenifish

  • Dan, thanks, both you and your wife for placing these videos on the web. I really appreciate them and learn quite a lot. Thank you again so much!

  • will this battery work well, XS Power D3100

    with some solar paners?

  • Awesome Video, I have 12v 120 Watt Panel and a 12v 80 watt panel, what do i need to do to have a total output of 12v into my solar controller? not sure on the wireing there..

  • @samcamfilms Tie the positives and negatives (usually Red pos black neg) together from each panel. You want to make a parallel circuit to increase the amps keep voltage the same. Series circuits increase voltage amps stay the same. This is basic electronics 101...Google series circuit and parallel circuit...you want parallel.

  • @samcamfilms Hope you got that right DO NOT TIE THE BLACKS WITH THE REDS KEEP THEM SEPARATE.

  • Perhaps my book "small scale solar energy systems" (lulu website, nr 10542952) can help you to solve this problem. Dont tie the positives and negatives together.

  • Excellent method. 

  • I noticed how you said that it's not good to directly connect a higher voltage pv module to a lower voltage motor... How would you get max current from a pv module without raising the voltage? How would u connect a pair of modules with a total of 34 volts/ .54a max(12-17v each) to a motor that runs 6-12v/.5a??

  • thanks for sharing

  • Thank you i made my rc car solar powerd and the voltege is a little under this well help me alote thumbs up.

  • Can you mix series and parallel wiring if you need to increase both voltage and amps?

  • Can you mix series and parallel wiring?

  • like this video. See my home energy stuff using Rooftop Wind Turbines and solar panels on my roof. I won a Green Design Contest with my product on EarthDay

    PEACE

  • Marry a beutiful Asian lady lushfmlk.info

  • ************ Very Important Safety *************

    But Until Now Most of the Inverter Around the World Still Can't Pass The RCD Most Inverter Are Problem With RCD Safety .I Have an Experiment For About 12 Years Already until Today About 16 Inverter Experiment Most Of Them Are Not Pass Home RCD ???? It Was Unsafe.

    From International Scouting

  • Just subd, great step by step and easy follow

  • In buiding solar panels with the intent of installing byass diodes to prevent hotspots that may occur as a result of shading to a portion of the panel how must the bypass diodes be installed ( pos to negative and neg to pos), and is it enough to count the voltage of the cells that will be bypassed and multiply the amps and voltage, than double to determine the size of the diode? thank you

  • One of the best, and most informative videos on youtube, thankyou for sharing!!

  • hi dan i need your help on buyimg a grid tie inverter, i have 3 solar panel 45 watt ,and 3 wind mill generator ,one is 1 amp and the other 2 are 1\2 amp each if i 'll buy a 300 watt inverter thath wiil be good even to hook it up just to the solar power or both them .and olsao i have 5 ,12 volt batterys if i charge the battery s what kind of grid inverter do i need to buy.thank you .JOE

  • very informative... 

  • Thank you sir you have explained it well.... I learned a lot I`ll try it one day...

  • Say You have 10 100 watt panels, what is the best way to connect them? in series or parrall? ,with a 12 volt invertor. I know its 24 volts to hook 2 together,but is there an advantage to one or the other?

  • For those that know solar... If you were to make 2 solar panels each using 36 mono, 6x6, 4 Watt, 0.5 volt and 8 amp cells, what kind of batteries would you use? Also, how many batteries would you use? Probably 1 battery to each panel right? So if you were using 2 batteries for 2 panels like these what kind of inverter would you use, 24volt? Would appreciate.

  • whats the difference between voltage and amperage

  • @dzgfdg A bad but easy to understand example. Water pipes. Voltage = PSI pressure and amperage = flow or gpm. (Bad example because nothing flows in an electrical wire, just electrons moving along a conductor. Higher voltage will pump electrons into a lower voltage battery. The amount of electrons is your amperage. For power they are interchangeable. 12 volts @ 3 amp = 36 watts OR 18 volts @ 1.5 amps = 36 watts. You change the voltage based on length of wires and battery voltage

  • @dzgfdg

    Power = Volume.

    Pressure = voltage.

    Amperage = amount of electrons.

    Think small hose - high pressure = volume XYZ every hour.

    Think big hose - low pressure = (same) volume XYZ every hour.

  • how can you charge a 12v battery with 18 volts an alternator peaks at 14 volts without damaging the batteries how can 18 volts not damage the battery, think your better off with a regulator between the panels and the batteries going from high volt to 12 to 14v charge,Don't you think

  • Can you hook up higher wattage panels to each other providing that the voltages are the same? I.E.= 1X175 watt 12 volt to a 1X130 watt 12 volt? I thinking in the future that panels will get cheaper and wattages will go up . Thanks

    P.S I'm aware of wiring sizes and OC protection.

  • I have found your videos really helpful so far but this one had me confused. I can't figure out which way you thought they should be linked for just normal use? What I am wanted to see is how you link two of the harbor freight ones together.

  • Hi Dan what i need to know is how to connect a panel wired in series with a panel wired in parrallel.

  • Dan, I have 7 (15W) Solar Panels. Can I link my panels (Harbor Freights 12V) in parrallel and charge my batteries (Two 12V Deep Cycle) in series to properly connect/use with a grid tied inverter ?

  • I would like to know can I run heavy electric appliances like refrigerator and Iron on solar panel, To run a referigerator how many of these panels I need.

    Greenpower science thanks for this interesting video.

  • what is that box thing called that you hook your solar panels into

  • @117boonmoo solar power controller.

  • @117boonmoo charge controller 

  • Can i hook panels up to charge controller in series or is that a bad idea?

  • i hope you can help. i'm building my panels. should, i build the panel to 18v or 12v. i'm told 18v for the panels. what do you suggest?

    thanks for the ear

  • 18 V IS THE GOAL FOR CHARGING 12V

    watch?v=5Zy3ELxwdtE

  • @GREENPOWERSCIENCE Thanks for your valuable informations ,but why 18v is the goal for charging 12v?

  • @mr00engineer I just recently got into solar power, so I may be incorrect. I don't have my battery yet, so I haven't tested this. My solar charge controller needs a minimum of 13 volts to charge the battery. If your panel puts out 18-20 volts in good sun, then it should put out 13 volts in marginal sun. I am not sure if there is any other good reason for 18 volts. From what I have seen, 12 volt panels will go up to 21 or 22 volts in full sun. My charge controller will take up to 22 volts.

  • can i run a charge controller with these specs 30A,40A,45A and the voltage is 12V or 24V auto switch. with a 1500w 12/48 amp inverter

  • It is said that the plastic in these panels has a little developing to do before it's a sound investment. I am very encouraged to see this taking off, however. There will be detractors--but solar is the future.

  • Great Video....

  • i have 2 85 watt multicrystalline and 2 80 watt monocrystalline....but they have the new mc4 conncetors....and they come with one male and two females on the other end...and one female and two males.....they tell me that this is how they do parallel connections...i did that ...and a AA battery was putting out more volts then my four panels.....how can i do it the old fashion way...?

  • @ginostatus I use jumpers in this video watch?v=rpafn-urjrg

    You can buy mc4 to pigtail, or an extender mc4 to mc4, cut and pigtail.

  • Well done! You explained it so well. I got my solar panels with no wiring which made it very hard for me to decide how to connect them. But based on what you said, very simple. I'll connect them in parallel.

  • i cant wait for the vids you mentioned at the end, thats teh kind of stuff i need to know so i can get everything planned without flying by the seat of my pants.

  • Pardon my ignorance, but what is that thing in your hand? Is that a voltmeter? Just trying to be sure. I'm a total newbie when it comes to this stuff.

  • @nomoreremakes It's an AMP-Meter

  • Great video! I am rusty and this video really helped out. Right now I have a Deep Cell Marine Battery and I have a 9Watt and a 1.5 Watt Solar Panel going to a charge controller. I am using a 100 Watt inverter most of the time, and as needed I an using a 400 Watt inverter.

    I am only running a clock radio and charging Nintendo DS, PSP and Cell Phones as needed.

  • ts...

  • Hello, just wondering if you know a 3P - 3P solar inverter? what is the number of panels if you wanted to have 10kva 3P-3P solar inverter.?

  • How many solar panels and batteries would I need to produce 15 KWs per day?

  • aedgin says he uses 90,000 watts? Frick. How many batteries and solar panels do you think he has rigged up at his place?

  • 90 divided x 24 = 4KWh.

    So he would need 10KW system for day night usage.

  • my average in hot months (florida) is about 90 KWh

  • 90 divided x 24 = 4KWh.

    So he would need 10KW system for day night usage.

  • SIR WHAT IS DIY?

  • do it YOURSELF.

  • SIR, NEVER WONDER WHY I SOMETIMES I OPEN YOUR VIDEOS AND I COMMENTED BECAUSE YOUR YOUTUBE JUST AN INTERESTING TO SEE, I LEARN FROM IT. LODEMER cebu city

  • Hello, If you could message me PM like, I was curious to know how many panels or what I would need to power my apartment!? thanks Where can i find more information of how many, how much, or what I need? Thanks

  • Look at your e bill. Let me know what your KWh per day is.

  • cool video!

  • i know lots of people view these videos, i dont understand the whole amperage/voltage thing, can someone reply and explain???

  • would i lose the voltage if i place them in parallel

  • No. The voltage will remain the same.

  • How many would you need to do a house that uses 100 KW

  • 100KW? thats alot, what are you running 10 central A/Cs?

  • nicely done.

    explained, well, didn't see any errors. (had to take three goes at spelling errors)

    gonna watch some more

  • If you catch any SP let me know, greatly appreciated. Annotations I can correct, embedded in the video is there forever:-0

  • you will end up with the smallest panel's voltage and amperage as well the smallest panel sets the pace of the race......

  • Its Actually an altenator in my work truck , So its a 12 volt system , powering an 24 volt inverter. I just want to get this hooked up right before I fry something

  • I just recently purchased a 24volt inverter and am wondering where i connect my generator to what posts. The one being linked between both ?

    Thanks, Tom

  • What is you generator.

  • You Provide some great information Dan. We have been thinking seriously of going Solar either partially or completely off of the grid. I had no clue how the solar systems worked until I saw your videos. You simplify things which helps people to decide what best fits their needs. Thanks for sharing your expertise on this.

    Jeff and Ranay

  • Thank you very much for enjoying our videos and the GREAT COMMENT:-)

  • i seen alot of invertors around but i find that the 24volt is rare and from your vid i found that they are more effecient as i thought i am looking heavly into Solar power as well as Solar Heating

  • to increase the voltage you divide the amps to increase amps you divide voltage the wattage stays the same amp X volt=watt i found this tidbit helpful to understand what hes saying

  • Dan Rojas... YOU EFEN ROCK MAN... Honestly

    Make more videos we love you.. if you make more videos people will remember your name your site and everything about you and go back to you for more info.... DUDE>>> FREE PUBLICITY XD

  • Comment removed

  • I like your video. I would like to point out that connecting the three cells in series DOES NOT increase power. In series: P= i*v = (.5A)( 12v+12v+12v) = 18W in parallel: P=i*v = (1.5A)(12v) = 18W You see you don't increase power. You just increase the current to your load. The power remains constant no matter what arrangement you have them in. I am an Engineer, by the way. good video though
  • Great videos. Thanks!

  • If I hook them in series instead of paralell do you think I can run my inverter? The inverter is designed to run off of 12 volts so I risk blowing a fuse hooking up three 45 watt 12 volt panels in series. If I hook them in paralell I am back to point zero of my problem, not being able to even power an inverter. It basically works out to be a waste of my $240.00 dollars.

  • Hi Dan, your video using the harbor freight 45 watt solar kit prompted me to buy one and I personally think it is shit. I could not run a 450 watt inverter or a 750 watt inverter off the supposed 4 amp 45 watt solar panel setup. Yeah it can run a couple of stupid lights in the daytime and trickle charge a battery but it ends up being a waste of money. I have two 6 volt golf cart batteries that work great with my inverters but it would take the HF unit days to charge them, what gives?

  • i love your vids

  • I know this is nitpicking, but do you have to say "amperage"? That isn't a word. 'Current' is the word you're looking for.

  • he actually can say that because amperage IS a word. Amperage- the strength of an electrical current measured in amperes.

  • What is your source on that definition?

    Is "Current" being retired the same way Electro-Motive Force was when it was when it was replaced with "Voltage"? "Amperage" used to be one of those words only some technicians and laymen would use. If an engineering textbook were to use the word "Amperage", I would feel a bit discouraged.

  • thank you i needed some help and this helped me alot. thanks dude

  • love you videos brother good job I wish I could meet yea you probably have al ot of cool stuff I have some solar pannels from a goverment aution they work the voltage rectafier was fried on them so I replaced them and they are like new they are about 10 years old and still work like they did when I got them.

  • EXCELLENT:-) Know what to look for to fix if I ever fine them at an auction.

    Thank you for sharing.

    Dan

  • i have a solar panel ,can i used direct to the inverter? and for the inverter can i plug some electrical divice? what kind of inverter do you sugest? please i have 20 + volt with mine panel. thank you

  • Buy a small or large deep cycle battery, marine batter. If it needs to be portable buy a lead acid 12v 7Ah battery $19 ebay free shipping. This will flatten out the energy spikes. An inverter will turn on but will also cut off with a small load. What watt rating is your panel?

  • my panel is 20 volt around 75 watt

  • Great video . Nicos

  • Having solar to power you home is a great idea. It just isnt cost effective You wont be saving any money, at all. Unless the price of solar panels go down in price by atleast half, not worth the money. I incourage for people to buy, buy, buy So I will be able to afford them in maybe 5 years.

  • If utility electric rises double (and it will) then solar at it's current price becomes "worth the money".

    Figure future inflation vs. the`falling price compounded by future demand pressure and -now- may be the BEST time to buy, not later.

  • Yeah since I wrote this last comment I was thinking, and came to the conclusion itll be safer to start getting some panels installed, even though it isnt worth it now. If or when either have power outages, or so much instability. Ill be more ready for it.

    Its not good to wait till the well runs dry.

  • From an economical stand point the pay back on panels only needs to surpass depreciation and not orginal costs. You might be able to sell your panels after some time as they will still have real value like land, because they have production power.

  • how many 120 watt panels ?? what size and type of inverter?? what size and brand charger and how many 12v batteries will i need .......to power 400watts ???? also how many hours of direct sunlight will they need to fully charge the batteries??

  • For 24 hour applications you would need roughly 1000 watts of panels to power 400 watts day and night. I would suggest a pure sine inverter with the lower number of 500 watts or more.

    Batteries are measured in ah or amp hours 12V x 50 ah (marine battery deep cycle) 400 watts is 34 amps so each marine battery would last about 1 hour+ with a full charge.

    So for night time use 8-12 batteries in parallel at 50ah.

    the batteries discharge a bit and the inverter 10-15% waste.

  • the beat part of runing the solar panels in series is that you dont need to use heavey er guage wirew

  • yeah, I am burning out my inverter and batteries just running these inefficient 120 volt "energy saver lights". I need 12 volt lighting and LED lighting fast!

  • I happen to have this same solar system installed in my house, along with 3 @ deep cycle batteries, and a 1000 watt inverter, I have converted most of my lighting on the top floor to 12 volt and working on the lower, i am using 12/2 wire for my lines for the downstairs, i have track lighting in my kitchen that i took the transformers out and am using the 12 volt halogen bulbs that was in them , they work fine, one question, i need a reliable source for 12 volt cfl"s, any one know of a place?

  • Hey as any one tried to get a 3/4hp 12v motor and a 10,000 watt power head from habor freights, Northern Tools has the motor for $200, this is gonna be my solar set up with two or more batteries. all my pannels do is provide dc. and im gona get ac

  • two 12v hooked neg to neg and pos to pos, making a stronger 12 v is called "parallel", such as the two 12v in my Ram Diesel. When you hook them "end to end", or pos to neg, adding the 12v so ten of them would make 120v, it's called "in series", to the best of my recollection, although you explained it's function well. In our 1256 IH tractor, it had two 6v in series with a 12v system. Can't give amps enough credit though - put a group 31 in my 76 Chev K20 and it fired off at 28 below zero

  • thanks alot for this knowledge

    really great

    I have 2 pannel of 12v each 1w i wanna

    have little experiments of my self

    wanna know how to calculate how to selct battery and invertor for them

    i mean to method or formula of selction

    of pannels invertor andy battery

    thanks alot for sharing ur knowledge

  • thanks dan...i'm learning a lot by subscribing to your videos. great work.

  • i have got 2. 80 w 12v panels but I  have got 48v inverter do i get one more 80w panel. and do I have to get a 30A 48V Solar Panel Charge Battery Controller Regulator with it ?????

  • i have got 2. 80 w 12v panels but have got 48v inverter do i get one more  80w panel ?????

  • Also tell me what will be the difference if i buy 12v inverter and use battereis in parellel OR if i buy one more panel and use my existing 24V inverter. What will be the practical result difference.

  • Hi,

    You have a nice system created:-)

    It depends on cost and budget, the inverter would be less expensive, 1 more 20/12v panel would do the trick.

    24v is slightly more efficient, if your inverter was expensive, get the extra panel:-) 2x the charge rate.

    If you are on a budget, get the inverter.

  • Dear,

    Your videos helps alot. I am from Pakistan and new in solar energy thing. I bought 1 panel of 125W (12V), 2 VRLA AGM batteries of 100Ah each (12V each), a CONERGY 20A Charge controller Vision SCCC 12V/24V and a Suntechnics pure cine wave inverter 350W 24V.

    Now what i see that my one panel couldnot charge my batteries in series, so I put battereis in parellel. But i have 24V inverter so now what to do. I am manually changing wires everyday. Any idea. and what if i buy 12V inverter.?

  • Nice vid. Constructive observation: I did not hear anything regarding charge controllers, which limit the charge as the batteries approach the fully charged state. Also, from past comments, while you could run a cpf light from a mod sine wave inverter, it may hum and annoy you. Just my 2 cents.

  • good info. and with animation or picture we learned more better...pls more video!

  • Excellent video as always. Keep up your positive work!

  • This guy's awesome.

  • Just a quick semantics observation: batteries and solar panels GENERATE current, they do not USE current. I understood the intention of your comment, but wanted to make sure everyone else did too!

  • A solar panel creates electricity from the sun, but a battery does not create electricity, it stores it! Build a bran new battery in a factory and it has no voltage! Only after charging the battery does it have electricity! Thought you might want to know why your wrong! Have a wonderful day! Stay sharp!

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  • at the end you have some morse code.

    I got the bc, then, ditdit dahdah, which isn't a character then ta0wbc0, what's all that stand for? just curious. Rik

  • thanks again

  • Loving your video on these Harbor Freight systems. I'm going to run some romex thru my crawl space and use this system for some DC lighting. Seems like you can run a few lights all night of one system with a battery. My question is how long does it take to recharge the battery? Is there a formula for figureing run time based on watts or amps used x hours of use? Also I assume more panels equal faster charge? Can I use a bigger panel if they are wired in parrelle?

  • good show, enjoyed it. 5*'s

  • Waiting for part 3. I'd like to make my computer systems GREEN. 1 system runs 24/7 and the other runs about 12 hours a day. Lets not forget the DSL Modem, router, switchs, printers and monitors. I live in So.Cal. with about 320 sunny days a year. I'm thinking I'm going to need a 2,000watt inverter, at least 2 or 3 deepcycle batteries, and at least 2 of these 45watt solar systems from HarborFreight.

  • I will have it soon. Re: Inverter. Consider a Pure Sine inverter unless you are going through a UPS battery backup. Pure Sine inverters are 3-4x the cost per watt but would not be required IMO if you have a UPS system to prevent voltage irregularities. Most modified sine inverters are okay for the most part for lights, radios, and small motors and keep a good clean power flow. Several devices need pure sine wave inverters.