solor panelling? Answered

How do you store the energy you get from solar panels. Tell me what device or part i need to connect to the solar panels to store the energy to use it later on in the day aftter the sun is out?

Question by dorotheabrown37   |  last reply


need solar panels

Need solar panel contact if you have any extra laying around, may be willing to pay depending on price asked

Topic by singhjr 


Solar Panels in Parallel? Answered

I know that you can wire solar panels together to combine the amps. But I've only ever seen this done with 2 identical panels. Would there be any problem with wiring up 2 panels with different A values? More specifically these 2 panels. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item;=390312612951&ssPageName;=STRK:MEWNX:IT#ht_10141wt_1165 http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item;=320381449459&ssPageName;=STRK:MEWNX:IT#ht_10175wt_1165

Question by madmanmoe64   |  last reply


Solar Panel Construction

Hello Everyone, this is my first forum post!I had a question and couldn't think of a better place to turn to than this.Basically, I am constructing, or planning to rather, an outdoor picnic table. I want to add some gadgetry to it and make it more multifunctional. Sorry to be vague, but a lot of it is still being worked out and since I'm going to post the project on here anyway, I'd like to wait to present the entire project as a whole.My question involves the use of solar panels as a table top surface. I have a basic understanding of how to create a solar panel powered system (http://www.rain.org/~philfear/how2solar.html or https://www.instructables.com/id/Solar-Power-System/). But my question is this: does covering the solar panel with a piece of acrylic hinder its power collecting abilities? I'm thinking of covering the entire table top surface of my table with solar panels. Aside from the obvious downfalls of people using the table and blocking sun, I thought there would be enough time when its not in use to collect power. But obviously I can't have people eating right on the panels and damaging them. Any guidance would be GREAT! I just want to know if I should even entertain this design idea or separate the panels from the table altogether. Thanks!

Topic by jchorng   |  last reply


Solar panel question

Hello i am long time lurker of instructables.com and i love the site and its inspired me to build a few things. that said onto my question.  i was at my local Dollar Tree Store (Dollar Store) and noticed the solar powered walkway lights. so i bought a few and decided i could salvage the solar panels.. so a few screws and some applied pressure later i have some small cells 35.6mm by 29.6mm with a model number (SC3630S-4N) and everything so i googled it and i get this website as the only one listing voltages and mA's but there are two sets and i am unsure which set i need to be aware of and exactly what it all means. http://www.aliexpress.com/product-fm/432233432-solar-cell-Embeded-Modules-Outdoors-wholesalers.html so any one can explain to me what the 4 values mean i know (V) is voltage and (mA) is amperage but why list them twice.

Topic by jgosselin   |  last reply


Arduino with solar panel

How can I charge 12V Li-ion or lead acid batteries using a solar panel? I also wish to interface the three, i.e. the Arduino, the solar panel and the battery, together so that the Arduino is basically driven by the battery but as the battery discharges, the solar panel would charge it. What circuitry do I need? Also tell the specifications of the solar panel.

Topic by DeepayanB2 


Diy solar panels Answered

I saw the power4home.com has simple solar panel instructions, but it is an expensive book. I did not see his dvd series on youtube, but if you can find that that seems easiest for me. If there is something close enough online free I will appreciate those links also. THANKS

Question by jbaker22   |  last reply


Protective Cover for Solar Cells? Answered

I have a commercial solar panel that has burned out cells.  I figure this is a great candidate for overhauling.  I notice that the cells are protected with what appears to be clear silicon with a clear plastic covering, Tedlar or Kevlar?  Anyone know where to get large quantity of silicon for large pour of covering?  It would appear to me that after the cells are assembled the silicon would be poured and then the plastic cover placed on top and the some sort of rolling pin or squeegy to smooth out, this would be better than plexiglas laid over the cells,  hail could hit it and not break anything.

Question by Foxtrot70   |  last reply


Charging a 70Ah 12volt battery with solar panels

Hi seen your ads on google very enlightening. Was wondering if you could advise me. I have 2 strip lights that i run off my 1000w invertor poweredby a 12v car battery that dies after a while. My kids bought me 2 x 20w solar panels12v. Can i just join the negs and positives together from the panels and connect straight to the battery neg and pos or is more involved. I also have another battery I can join too,Would i need diodes and a controller also? thanks in advance Dougie

Topic by DougieD4   |  last reply


Can you run an electric motor off solar panels and in turn produce more electricity than the solar panels can???

I want to know if it is possible to run a one horse power electric motor 120 volt off a solar panel and in turn it runs a generator that would produce enough electricity to make a difference on my bill. The solar calculators say I can only save about $60 a month.... off my 3 to 4 hundred dollar bill. The motors I am talking about is the type used for turning water pumps ... they last for years...   

Question by inquestof   |  last reply


I want to run my well pump completely off solar panels

The well pump is currently hocked to a designated 15 amp 220 breaker in my main panel the pump specs mention that the maximum amps required  is 59. I wanted to run solar power to a dedicated panel box with breakers etc the line for the  pump would be 15 amp 220 as it is now WHAT SIZE SOLAR PANELS WOULD BE REQUIRED plus what other materials are necessary??? Thank You

Question by solarbat   |  last reply



please give me project ideas on solar panel & solar cells for exhibition project.

Please give me ideas &procedure; to construct a solar panel & solar cell which can produce more electricity. Tell me how it works and also give me list of necessary parts required for construction with circuit diagram. Also tell me where can i get those parts easily & also tell me alternative methods and alternative parts that can be used.Please respond with your ideas immediately so that i can construct it effectively for my exhibition.

Question by vamsi srinivas   |  last reply


From where i can get speakers or solar panels or any other kind of used things for free?

I want some things that work and reused things i mentioned in question.

Question by coolathul.12   |  last reply


Where can I get inexpensive solar panels?

I want about 10 square feet of solar panels.  I don't see any way out of spending at least 300 dollars.  Do any of you know where I could order small flexible squares of solar panels which i could wire together to meet my own needs?  

Question by Noblenutria   |  last reply


Solar Panel 12V regulator

Currently i am working on a 12V solar panel. the solar panel will be charging up the battery of 12V7AH. The problem is that by using the solar panel,the voltage often to be fluactuating down until 10V. How can i make the voltage remain constant at 12V?

Topic by haizad86   |  last reply


Magnifying Lens and Solar Panels! Answered

 Would a magnifying glass/lens increase the amount of solar energy to a solar panel/cell? or would it just block the rays? i'm a bit confused because people haven't done it before and because people put glass (and silicon) in front of solar cells all the time.

Question by Houdinipeter   |  last reply


solar panel and rechargeable battery

If i must using 17.5volt solar panel to charging battery 12v 72ah, what should need to apply between both of the item?

Question by fboll   |  last reply


Solar Panel Charging Station

Hello everyone, I am doing a project for my class and it is a solar lamp project. I was wondering if anybody knew how to make a simple solar charging station. I want to use  3 of 1.5 W/4.5 V solar panel from radio shack as a charging station. I was just wondering how I would connect this together and charge the rechargeable batteries from the solar panel charging station.

Topic by RedXNaruto   |  last reply


What is the structure of the solar panel?

Hi Guys, Would anyone able to help me understand what is the structure of the solar panel?? I am wondering what is that blue or even sometimes black sheet where a certain lines that look likes a aluminum or silver is? Is it the Silicon or not?? Guys help please. Thanks Best

Question by mitchiko   |  last reply


6v solar panel for charging

Is a 6v solar panel (260 mah) enough to charge 4 AA NIHM battery? The four batteries in serie amount to 4,8 volts, and  fully charged they can amount to 5,5v. I'm planning to add a diode, that can drop the voltage by 0,2v.

Topic by jemor143   |  last reply


Voltage regulator for solar panel

I have built a solar panel as a fun little project, now it has come upon a big problem. The solar cells that I am using seem to have a higher amperage output and a lower voltage output in high intensity sun while having a high voltage and low amperage output in medium and low intensity sun. This poses a problem as my batteries were able to recharge during late winter and early spring but now are not able to recharge when there is the most energy to be captured during the summer. The average voltage during high intensity is about 11 while the voltage during medium or low is around 12.5 and 13. I want to know if there is a way to create a transformer to step up the voltage or create a voltage regulator that can withstand 13 amps so the battery can recharge properly. A link or any suggestions would help.

Topic by menace 


how to make a solar panel?

I want to lear to make a solar panel for a science project

Question by muzaib.khan   |  last reply


Solar panel diode and battery ? Answered

Hello, I have 5V solar panel which will charge my 18650 3400mah Panasonic 3.7V battery. I will use Voltage step up to 5V and I don't know which diode should I use between panel battery? I have all these diodes. IN4148 Diodes IN4007 Diodes  IN5819 Diodes IN5399 Diodes  FR107 Diodes  FR207 Diodes IN5408 Diodes IN5822 Diodes

Question by muratm7   |  last reply


POWERING ATOMIC REACTOR CLOCKS:LASER SOLAR PANELS:USE LASER LIGHT NOT SUN

USING LASER SOLAR PANELS(NOT SUN LIGHT LASER LIGHT) INSIDE ATOMIC REACTOR COULD MAKE REACTOR FIRE SAFETY WITH USING FIBER OPTICS THAT HOLD LIGHT ENERGY TO TRANSFER ENERGY IN AND OUT OF ANY ATOMIC CLOCK: FIBER OPTICS CAN MOVE LIGHT THROUGH ANY BEND OR SMALL TO REACH PLACES AND THEN TRANSFER ITS LIGHT TO ENERGY WITH THE FOLLOWING IDEA. BY SHINING LASERS ON SOLAR PANELS THAT ARE INSIDE ATOMIC AREA DEVICES TO GIVE THE PANELS ELECTRICITY FOR REACTOR CLOCK AND REPLACING ALL DANGEROUS WIRES THAT SEND ELECTRICITY TO ATOMIC PARTS OF NUCLEAR PLANT. WITH NEW FIBEROPTIC WIRES TO SEND PHOTOVOLTAIC WIRES THAT SEND ELECTRICITY WITH LASER LIGHT. VERY SAFE COMPARED TO WIRES THAT WHEN CUT MAKE SPARKS OR FIRE. FIBEROPTIC WIRES ARE SAFE IF CUT ONLY NON DANGEROUS LIGHT WILL BE LOST. AND COULD REDUCE RADIATION FROM CROSSTALK THAT COME FROM REGULAR COPPER WIRES. One more idea can you charge a solar panel battery recharger by shinning laser beam on the solar panel cells in places were there is no sun light using laser light which can charge a device from a range of up to a football field if needed. This might be used in caves or evenin drilling for in off shore oil rigs were there really is no light in deeper water. And all other light sources of light would be distortedby reflection from the water. Only a laser beam could recharge aelectronic device by using photovoltaic in deep water where sundon't shine and only a laser will not have all of its light reflectedbecause of the water's reflection property, you would only be able touse laser light properties has less water reflection than normal light. BY HUME SCIENCE INTERNSHIP FIBER OPTICS TO SEND LIGHT INSIDE ANY TYPE OF ATOMIC AREA AND CONVERT IT ONCE INSIDE CORE INTO ELECTRIC POWER AND SAFELY DECREASING RADIATION PROBLEMS. THIS IS GOOD BECAUSE LESS COPPER WIRES ARE NEEDED.(ONLY LIGHT WOULD BE TRANSFERED IN CASE OF WIRE IS CUT ONLY LIGHT WILL ESCAPE MUCH LESS DANGER. USING FIBER OPTICS TO SEND LIGHT ENERGY ONTO SOLAR CELLS INSIDE REACTOR/THIS IS A GOOD SAFETY TOOL BECAUSE IF FIBER OPTICS ARE CUT ONLY LIGHT WILL BE EXPOSED AND NOT DANGEROUS ELECTRICITY WHICH WILL CAUSE RADIATION PROBLEMS. TO SEND ELECTRICITY INSIDE THROUGH OUT REACTOR//: INSIDE ATOMIC RADIATION AREAS. THERE ARE NO NEED FOR ELECTRIC WIRES. IF ELECTRICITY IS MADE INSIDE REACTOR CORE, BY SHINING INFARED ON SOLAR CELLS OBJECT NOT SUN LIGHT ONLY INFARED LIGHT ON THEM PANELS. THIS LIGHT HAS TO BE LASER OR INFARED BECAUSE IT CAN BE CONTROLLED USING INFARED LIGHT THIS ALLOWS IT TO BE MORE CENTERED THAN SUN LIGHT CAN. REDUCING ATOMIC RADIATION IN ATOMIC REACTOR CLOCKS. AND NOT USING WIRES. A ATOMIC REACTORS CORE CLOCK HAS TO GET ELECTRICITY. THIS CAN BE DONE WITH SOLAR PANEL CELLS PLACED AND CONNECTED TO THE CORE'S CLOCK. THEN BY SHINING LASER LIGHT OR INFARED LIGHT ON SOLAR PANELS THAT ARE INSIDE THE CORE CAN GIVE AND GET THE LIGHT ENERGY POWER IT NEEDS TO RUN TRANSISTERS AND COMPUTER CHIPS. FROM SOLAR PANELS THAT ARE CONNECTED TO THE CLOCK INSIDE THE CORE. AND ARE BEING GENERATED BY CONTROLLED LASERS THAT ARE ALLOWED TO BE AT VARIABLE DISTANCES. CAN ELECTRICAL ENERGY BE TRANSPORTED BY A LASER. SURE JUST SHINE IT ON THE SOLAR PANEL AT NIGHT AND YOU WILL GET A LITTLE ENERGY, SURE IT WORKS. CAN A ATOMIC REACTOR GET ITS ENERGY VIA LASER LIGHT INSTEAD OF WIRES DOING THE TRICK. NOW WITH LASER OR FIBER OPTICS. WIRELESS ELECTRICITY CAN BE SENT WITHOUT WIRES.ELECTRICAL WIRES COULD BE THE PRODUCER OF STATIC RADIATION. WIRES DO SEND ENERGY INSIDE THE CORE AND GIVES ENERGY FOR THE CORE'S REACTOR. CAN THIS IS ALL DONE WITH NO WIRES INSIDE THE CORE; IF WE ALLOW ENERGY TO BE SENT VIA LASER LIGHT TO A CONVERTER OF SOLAR PANELS COULD CREATE ELECTRICITY IF THOSE SOLAR PANELS WERE DIRECTLY SHINED ON TO BY LASERS. A GREAT DEAL OF WIRES COULD NOT BE NEEDED. SENDING POWER TO CORES WATCH OR CIRCUITS IS POSSIBLE. BY SHINING A CONTROLLED LASER ON THE INSIDE OF A CORE'S SOLAR PANEL CAN BE ACHIEVED BY FEEDING THE SOLAR CELLS INSIDE THE REACTOR WITH LASER PHOTO ENERGY LASERS WOULD SIMPLY SHINE ON INTERIOR REACTOR SOLAR CELL COMPONENTS. ONLY DIFFERENCE IS INSTEAD OF SUN LIGHT CREATING THE ENERGY IT WILL BE A HIGH POWERED LASER SHINING ON THE PANEL SOLAR CELLS. USE LASER LIGHT WHICH IS MORE DIRECT AND IS MORE FOCUSED OVER A LONG DISTANCE. LESS RADIATION AND LESS WIRE WASTE IS THE FINAL RESULT. HAVE A GOOD CLEAN DAY. THIS IS A NEW FORM OF TRANSFERING ELECTRICITY TO EXTERNAL LOCATION. USING FIBER OPTIC LIGHT AND SENDING IT AND THEN RECIEVING IT ACROSS A DISTANCE WITHOUT WIRES. THIS SEEMS SAFER TO ME BY USING THIS METHOD. REMEMBER THIS; WE ARE NOT USING SUN LIGHT IN ANY OF THESE METHODS ONLY LASERS OR FIBER OPTICS. THIS IS INFORMATION FROM A SCHOOL PROJECT OF MINE AND IF YOU CAN GIVE MORE ON THIS SUBJECT PLEASE DO. PLACING SOLAR PANELS INSIDE BUILDINGS NOT JUST OUTSIDE, AND CAPTURING OFFICE LIGHT 24 HRS MORE PROJECTS THAT I WOULD LIKE TO EXPERIMENT A INTERNSHIP WITH! PLACING SOLAR PANELS INSIDE BUILDINGS NOT JUST OUTSIDE, AND CAPTURING OFFICE LIGHT 24 HRS

Topic by humexavier   |  last reply


Solar Panel Battery Charger

I'm doing a solar panel cell phone battery charger project for school using a 9V, 3.3W solar panel that I bought from here: http://www.ebay.com/itm/3-3-WATT-9-VOLT-SOLAR-PANEL-3-3W-9V-Monocrystalline-Solar-Panel-/130612072684?pt=LH_DefaultDomain_0&hash;=item1e691610ec (I can get around 8V under a light bulb and 10.5V under sunlight.) The circuit is shown in the picture with four, 1/4W resistors because the output is going to a USB cable. The regulator I tried at first was a 7805 from radioshack I noticed I was getting exactly 5V on the output, but only getting 1.5mA of current on the output of the regulator. I've tried the MURATA 78SR, Fairchild LM317T, N.S. LM1804IS, and a few others specifying 5V and 1-1.5A of current but I still only get 1.5mA of current on the output (I need at least 500mA). The phones I'm testing will charge, including a ipod classic, but I'm afraid that the 1.5mA of current is far too small and will damage the battery. I have yet to try using 3W or 5W resistors but I still don't think it would help, I'm also considering using a boost converter to get the current up (also the voltage) and then feed that output into the 7805. Am I doing something wrong? Can I get around 1A of output current from the 7805 by doing something else?

Topic by dan1133   |  last reply


Arduino using solar panel?

Hey guys. Im trying to have a fading led that only turn on when there is no light sensed by a solar panel that would probably be attached to an Analog Input. I'm trying to figure it out but I just can't seem to find a way to make it work. I also need to figure out how I'm supposed to plug a solar panel into an arduino UNO since it is not like a battery and only has a + and - wire. Heres my program: int light = A0;    //light acivated part int led = 9;           // the pin that the LED is attached to int brightness = 0;    // how bright the LED is int fadeAmount = 5;    // how many points to fade the LED by // the setup routine runs once when you press reset: void setup()  {   // declare pin 9 to be an output:   pinMode(led, OUTPUT); } // the loop routine runs over and over again forever: void loop()  {     // if there is light, dont run code   if(analogRead(light) == 0){     // set the brightness of pin 9:   analogWrite(led, brightness);      // change the brightness for next time through the loop:   brightness = brightness + fadeAmount;   // reverse the direction of the fading at the ends of the fade:   if (brightness == 0 || brightness == 255) {     fadeAmount = -fadeAmount ;   }       // wait for 30 milliseconds to see the dimming effect      delay(60); }    }

Question by the_joker_   |  last reply


Solar charging

Hi, pls suggest me for the following A 20Watt ( 20V , 1000 ma) solar panel is connected to charge a 12V, 80AH battery . What is the value and wattage of a Current limiting resistor to be added?

Topic by khhrao   |  last reply


9V Solar Cells (Parallel) to DC to DC USB Booster: Will it "fry"?

Hi all. Here is my question. I want to take 3 Solar Cells (9V, 500mA) wired in parallel (1.5A output) and run them through a DC to DC USB Boosting Circuit (5V) Now I know this circuit will boost up to 5V, but what if 6-9V comes in to it? Will it just limit to 5V running through, with no boost, or will it "fry" it? One more question: What if I wanted to have the 9V, 1.5A of the parallel solar cells route into a Mini-USB port that can take 2 amp in? Same problem, or no problem? Any help is appreciated! Thanks!

Question by yamata45   |  last reply


solar question

Do solar panels have to be in direct sunlight? I'm looking to make a "Sun Jar" and was wondering if it would work on my balcony. The only thing is our balcony doesn't get direct sunlight to it as it's inset into the building and covered by the above apartment's balcony.

Topic by mrshow555   |  last reply



Low Voltage Disconnect diode anyone please help. Answered

Dear Fella's I'm having problem with my Solar Panel charger, because I made a solar charger but in times of bad weather, my battery charge keeps losing out. I have known about the function of the LOW VOLTAGE DISCONNECT which requires a particular diode or something that has  to be connected to the panel in series towards the battery charger. Can anyone please help me find out what particular diode should I use in order for me to have the LVD function. Guys your help would mean a lot for my experiment and hopefully I could post it here as soon as it is done. Thanks in advance...

Question by mitchiko   |  last reply


Solar engine for a solar boat Answered

 Here of some of my queries.  we need to run a solar powered boat on a 1.4meter long water track in a shortest possible time( max time 5 min given)........ so i would be glad if u let me know the correct solar engine circuit to it..( i mean the capacitor selection , solar panel specifications etc etc) also there are many slar engine circuits online..which one do u prefer (1381,FLED,millers,zener based etc etc)           waiting for ur reply....... thanx in advance........

Question by abdul moiz   |  last reply


Solar light?

I want to build and install three lights about 10 watt each in my house garden. Powered by solar panel (80w),100ah dry battery. Instead of using energy saver bulbs , i want to use LEDs.one LED of 10w or more which give light equal to one LED. Can any gentleman help me to design this system with 8 hours battery backup. The lights should be turned at dawn.Thanks

Question by Sarfraz ahmad   |  last reply


Is this solar setup flawed? Answered

I have a 12V 10W solar panel that I'd like to use to charge a smartphone and/or a battery pack (5000mAh-15000mAh). I realise it's not a large panel but smartphones aren't that greedy and my use would be moderate. I was hoping that I could just attach the panel I have to a car lighter receptacle and use a double USB plug that I already have. Is this a sensible arrangement? The advantages, to me, are that all I'd need is a $5-$10 receptacle and I'd have a very simple setup (no inverter or charge controller, well, I suppose the USB plug would be a controller, perhaps). Would this system work? Even if it did work would it be an efficient set-up? Would there be any danger of damage to smartphone or panel? Also: will I need to earth anything or are the devices I charge capable of earthing? Would I need a diode to stop charge flowing back to the panel when there was no sun? Thanks for reading, I'd really appreciate any input on these questions.

Question by faintingcabbage   |  last reply


how can charge batteri with solar panel?

 i want a circuit to charge batteri 3.3 volt with solar panel

Question by liliv   |  last reply


How can I make a solar panel?

Question by    |  last reply


small solar panel, motor and propeller

I have constructed a desktop solar helicopter that I have on wire3d.com  I am trying to make a small very light solar helicopter that I can fly on the desktop and is tethered on 4 corners. I will make it out of very light plastic or styrofoam or bulsa wood. I need to find the right panel, motor, and propeller. Any suggestions will be appreciated.   bob

Topic by solartoys   |  last reply


damaged solar cells?

I have constucted a solar panel however I am getting no volts out. I have inspected the cells and I have found a few that are split across from one side to the other and I was wondering if this is effectively a break in the pos neg circuit?

Question by smiler84089   |  last reply


where can i salvage decent solar panels from?

I need to knw where can i salvage decent solar panels from or where i cn get CHEAP but EFECTIVE solar panels....but i can't buy it of the net.any household items that use it?

Question by Mo Vo   |  last reply


Solar "Generator"

Since I've always wanted to do something like this and I found this site, it's about to happen! I found a smaller version with what I wanted to do at Popular Science but I want to do something on a larger scale. I do have some questions though that I'm hoping someone can answer or point me in the correct direction.I'm going to describe what I'm doing with what and what I have questions with.I'm going to be buying this solar panel and charge controller kit. Sunforce Solar Panel With Charge ControllerA deep cycle 115 AMP Hour 12 V marine battery from Wal-Mart with Plastic Battery caseSalvaged wood Toy BoxMeter Question: How to meter how many amp hours I have left or how charged the battery is? What kind of meter to buy? Where? (not too expensive <20 bucks or so) how to hook it up.A 12 V accessory outlet with on off switch Question: I'm putting an inline fuse before the switch, 15A the line fuse goes on the + (positive) side correct?A 700 Watt 6.25 AMP DC to AC converter with 4 outlets connected to it. Question: can I put a breaker or fuse between the 4 outlets I'm going to be plugging into on the outside and the plug being plugged into the DC to AC converter? If so how?USB ports for charging with on off switch. Question: how do I convert the 12V to 5V in an easy way? I've seen some creative ideas on here for charging VIA salvaged USB ports but I don't want to have to hook it up to my power inverter if I don't have to. Cooling/ventilation for the entire thing. Any ideas how I might cool/vent it? Currently I'm thinking of using old computer fans and put them on both sides of the toy box and have 2 blowing and 2 blowing out. Having the fans run off of the solar panel during the day and either have a switch to change it to battery at night (if it's too warm in the house) or maybe photo sense it? Temp sensor to turn it on and off? Or a switch to turn it off completely. I'm just looking for idea's to keep the battery (and to expand to be more than one battery) cool/ventilated. If you have examples or detailed description on how to do it that'd be great. I'm not one to steal ideas so I'll credit the idea's I'm given if I use them =)I'm going to see how much I can run off of this and how long. Hopefully save some big time energy also!Thanks all!

Topic by oddie1212   |  last reply




how do i build a solar panel regulator?

I needed a schematic diagram of a solar panel regulator

Question by    |  last reply



Solar panel and battery charging/discharging

Hi, I am trying to power some LED decoration from a small 6v solar panel. However, I would like the LEDs to be also on during the night, so working from batteries during night time. I have connected in parallel 3 x AA batteries (800mAh each) to my solar panel (6v, 500mAh), with a diode in between to avoid the battery discharging to the panel. Voltage is fine, and LEDs are working, but I am not sure if during the day, the solar panel is powering the LEDs and charging the batteries, or if the batteries are discharging all the time. If the solar panel is providing more current than required by the LED, does the excess current go to the AA batteries? Is it harder to charge AA batteries compared to AAA, apart from the capacity (mAh) being higher and therefore taking longer? Do I need more mA to charge AA batteries? Thanks, Seb

Topic by SebastienO   |  last reply


Reuse a solar panel from calculator? Answered

I have a solar panel from an old calculator, I'd like to use it to make a motor spin to make a junk bot.  It doesn't spin the motor when I hook it directly to the motor like I would a battery.  Do I need a capacitor or other electronics to make it work?   I used a multimeter and the panel shows 2 volts in bright light, the motor does spin with a 1.5v battery.

Question by rachl009   |  last reply


Making a Inverter with 12V Solar panel.

Hello There, Some One Tell me how can i Power Up my Desktop PC with 12Volt Solar Panel that is rated Max Current Of 10Amps, so i want to make a DIY Inverter with i can Ran my Desktop PC , The load of PC is  Approx. 500 Watts. I know how to Convert DC to AC but the Problem is Power(LOAD). How can i Make it to work With Max power of 500 watts? Help me  Plz Regards, AB

Question by asattark.solangi   |  last reply


Not getting an amp reading from panel?

I am a newbie, I built a panel and I am able to get the voltage but I am not able to get a reading for amps.  Any help will be greatly appreciated. Natalie

Question by Kumachun   |  last reply


Solar Concentration?

I wonder if anyone has tried this, using either a solar cell, or joule thief powered LED in something like a torch head fitment  with a solar cell capping the end of the torch head such that the maximum amount of vsible light is falling on the solar collector and none is going any where else. Although direct sunlight may be ok to power a PV, because of local weather it could still be described as diffuse and tricky to get a constant intensity of light where it is needed. If it were possible get a gain in efficiency this way it also could mean that you are not constrained by the amount of area you need to lay out panels to catch sunlight, the collectorsand lights could be stacked vertically in enclosed units.Apparently PV'sare most efficient in the visible light spectrum which reduces concerns of radiation (UV or IR) If efficiency and power could be increased in this way small units could be joined in series or in gradually  increasing size to power requirements.

Question by Nowandthen   |  last reply