Is this a good set up for a series/parallel configuration? when I test it with a multimeter the voltage was around 2.5 v each cell produces 3v@40ma. so something is wrong here.
Question by dominick.j.pezza 4 years ago | last reply 4 years ago
Hey, does anyone has an instructable on how to make a nano crystalline solar cell? i am currently interested on doing it, but do not know exactly whereto make a good start, especially with the materials. So, can anyone help me out? Thank you very much.
Topic by brainwash 10 years ago | last reply 9 years ago
Lets say I have a solar panel that gives off 5 volts at 30mA. if I were to put a ten ohm resistor in series with it would There be basically no effect because a 10ohm resistor woulkd limit it to half an amp, which is way more. Or does the solar panel act like ~ 167 ohm resistor, and adding a ten ohm resistor will limit it to 28mA?
Topic by guyfrom7up 11 years ago | last reply 11 years ago
Hi Guys! A few weeks ago I found an auction on ebay, bid, and won myself some big old pack of solar cells. Now these panels are wafer thin, no coating or covering. Additionally, I need to put the wire collecting ribbons on myself. The only problem with these is that they are incredibly fragile. What can I coat them with to protect them? Is there any spray or acrylic or resin that you use to protect them? Thanks
Question by transistorguy 6 years ago | last reply 6 years ago
I am trying to make a somewhat portable solar panel with (3) 3 1/4" x 6" solar cells mounted on a durable fabric, but what I'm wondering is how to mount them. I am thinking of using glass super glue to mount the cells on or sandwitched between two peices of glass and having that sit in a plastic frame to be riveted on the fabric. what I want and haven't been able to find is a low profile license plate type plastic frame that would fit the glass perfectly. I only want to spend around $1 per frame, so custom isn't going to cut it. Does anyone have an idea of a plastic or even aluminum frame that would fit these specifications? Thanks!
Topic by tinstructable 7 years ago | last reply 7 years ago
Question about solar cells. Since solar panels are encased in glass or polycarbonate, does exposure to the elements degrade solar cells? And if so, in what fashion? Corrosion of the traces? water infiltration? etc. etc? Or is it a matter of the fragility of the cells?
Topic by Tool Using Animal 9 years ago | last reply 9 years ago
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 8 years ago | last reply 8 years ago
Hello, I am looking to build a solar charger in a 4x3x1.6 inch (or smaller) box to be as portable as possible. My only problem is, I would like to mount the solar cell on the box. However, all solar cells are far too large to fit this box, I plan to use a rechargeable 9v battery for power storage. I was wondering if I can use a 6v solar cell, and still use a standard LM7805 5v Voltage Regulator to drop 6v to 5v, or if someone could find a 2.5x3.5 inch solar cell (9v) online somewhere (for cheap) that would really help (I've looked everywhere...) Thanks.
Question by Tuckoguy 4 years ago | last reply 4 years ago
Does it matter what thickness I use to encapsulate my solar cells? I have gone with a 0.23 mm sheet and the sales rep is trying to get me to buy the 0.4mm sheet which is more expensive saying that the lighting conditions will be better off than on the thinner eva. I don't really believe that the thicker sheet would allow the solar cell / panel to increase the power generation but i have no experience in this nor could i find a forum that discusses this topic. What have you guys found? does the eva thickness matter? Thanks!
Question by Poloman 5 years ago | last reply 5 years ago
Hi everyone! i want to build solar powered charger... i already build ups system using old computer system ups... configuration : 650va ups with 12v 35ah battery. The battery is deep cycle one and should be charged in 8 hrs of good sun light.... so how many solar cells i need to buy and describe the calculation? Best online shop to buy a cheap and best cells ? Thanks in advance...
Question by arshanmugam 6 years ago | last reply 6 years ago
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 9 years ago | last reply 6 years ago
Hi All, Instructables is a great site which offers lots of handy tutorials. While searching for ways to make solar panels I came across many tutorials that explain how to make a solar panel from solar cells. I'm looking for a tutorial on how to make these solar cells at home as I don't want to purchase them. Anybody has an idea? Thank you. Ciao Frank
Topic by cShellPro 7 years ago | last reply 7 years ago
Here I have 2 questions inside a question. 1. How to connect 2 or more solar cells/panels; series, parallel or some other, third way so....for example if I have 3 solar cells that give 5 Volts each, I connect them in some way and in the end have 15 Volt coming out... My question is hot to connect the solar panels to the the output described??? 2. Now that I have, for example 15 Volts coming out from these 3 small panels, I need to store that electric energy somewhere...So would a diode just to ,point, the electricity and a ultra capacitor to store it ,or does it have to be a circuit that involves rechargeable batteries and a special recharger circuit.
Question by comodore 10 years ago | last reply 7 years ago
Hi, I would like to make a lightbox and charge it from a Solar cell . I saw a 5v ledstrip online , but I am wondering wich battery and wich Solar cell I have to buy? I mean how much voltage en watt does this ledstrip need? Wich diode do I need? Another question: I want the Solar cell to charge during the day and I need it's power during the night , do I have to do something special with it ? I mean in the most cases you will have the energie richt away, that is not my plan .... I rather not use an on and of switch , I want to use it automaticaly. I just started with the diy adventure? Forgive me :) greetings deborah
Topic by DeborahM8 3 years ago | last reply 3 years ago
Question by snakdimen 9 years ago | last reply 9 years ago
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 7 years ago | last reply 7 years ago
Question by Rajesh_Sahu 3 years ago | last reply 3 years ago
What should be done to make a dynamo . where can i get the parts required, suggest me necessary parts to make a solar cell and solar panal easily
Question by vamsi srinivas 9 years ago | last reply 9 years ago
Of the various renewable energy sources out there, solar and wind are among the most popular. Already windmills are springing up in various parts of the country. This got me thinking, what if you used some of that space on the windmill to harvest some energy. For example, what if you attached solar cells to the windmill rotors of tower to harvest extra power. What do you guys think?
Topic by purduecer 10 years ago | last reply 10 years ago
Solarbotics sell a tiny solar cell. A dollar each, but postage doubles the price.Does anybody know of a cheaper source, preferably in the UK?I have already googled, and failed.Alternatively, is it possible to cut or break up a normal solar cell and still use the fragments?
Topic by Kiteman 10 years ago | last reply 10 years ago
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 9 years ago | last reply 9 years ago
What is the difference between a 6v 80mA solar cell and a 6v 830mA solar cell?I am trying to make a solar phone charger and need to know. Thanks!
Question by DELETED_MakerNinja 3 years ago | last reply 3 years ago
Question by dianapieri 10 years ago | last reply 10 years ago
Will super glue hold this piece back on ?And if the chipped part of the cell is put back in place will the cell work and function as a whole as if it were never broken and generating power = to a new unbroken cell?
Question by snakdimen 9 years ago | last reply 9 years ago
Hi everyone, I would like like to power a circuit that requires 6v from a battery charged by a solar cell. Could someone recommend a battery & cell specs? Would like the circuit to run at night for at least 3 hours. Battery needs to be quite small. I've picked Powerfilm solar cells, just need to know what voltage & amperage to use for a small 6v rechargeable battery. Thanks!
Question by BlondeJamesDean 4 years ago | last reply 4 years ago
I have no idea so plzzz give idea about this....
Question by gagankhandelwal 8 years ago | last reply 8 years ago
Question by sanket_gahlot 9 years ago | last reply 9 years ago
I occasionally see questions from people wanting to know if they can make their own solar cells.Previously, the answer was "no".Now...The latest issue of Science in School contains a "how to" for making organic solar cells from dyes instead of silicon, that produce useful amounts of electricity.Link to "how to".Also in this issue...The archive of back issues is here (can you find my article?).If you browse the magazine, and like it, you might consider passing the URL on to friends, colleagues and potential advertisers. Previously funded by an EU grant, the print magazine is distributed free. The website is funded until October 2010, but the print magazine needs finance (sound familiar?)Anyway, if you are part of, or know of, a company that would like to target their advertising to science educators across Europe, point them at http://www.scienceinschool.org/advertising or contact them directly at email@example.com
Topic by Kiteman 9 years ago | last reply 7 years ago
I see you need spacing between your cells and the frame the cells are encased in. So what do you use after you have strung all the cells together and before it is mounted in the frame?
Question by donaldfrey 9 years ago | last reply 9 years ago
The sun's energy may be free, but solar panels can be quite expensive. Still hoping to get off the grid? VIRON has a great Instructable, How to make PV solar panels, teaching how to make your own from broken or surplus solar cells! From the introduction: In essence, this involves ways to connect cells, which may produce more or less than one volt, and not only try to increase power output but also decrease the load, that is, efficiently conserve the energy whether it is meager or significant. For example, even the weakest solar panels can run watches, calculators, radios, charge batteries, and if a computer were specifically designed to, it would be as solar-powerable as a calculator. Check out the Instructable for info on finding and foraging usable solar cells, instructions on preparing different types of broken cells, tips for getting more power out of your panel, and instructions for wiring the whole thing up to power your devices. Inspired? Planning to try piecing your own solar panels? Already off the grid, and planning something even better? If you do, be sure to post an Instructable so the rest of us can learn something new. This post has been sponsored by Pepsi. The Pepsi Refresh Project celebrates the people, businesses, and non-profits with ideas that will have a positive effect on our world.
Topic by canida 9 years ago | last reply 9 years ago
Hello everyone I have an idea to build a solar power suppl for a laptop using a 12"x12" solar cell. M question is this, if I solder the leads from a power inverter to the solar cell, it should be able to power or charge a laptop correct? Is there something else I would have to do?
Topic by DaMadProfessor 11 years ago | last reply 11 years ago
Can anybody help me to find a seller of monochrystaline or polychrystaline solar cells in the uk. there are some on ebay but none offer a gaurantee. i would like to buy in person if this is possible. many thanks for reading.
Question by john.the.plumber 8 years ago | last reply 8 years ago
i came up with this idea after looking at a lot of instructables on solar cell phone chargers all using a usb port and thought that having a 12v port would be a more flexible charging device for more than just a usb type device.I got the idea after looking at this schematic http://i27.tinypic.com/n4xq4x.jpg and thought that lithium ion battery would be a better idea (lighter weight and more powerful)than AA batteries I'm planning on using three 3.7 Li-ion Nokia cell phone batteries wired in series in conjunction with a 12v solar cell ,a blocking diode, battery pack then a cigarette lighter receptacle to plug a car phone charger into see attached illustration
Question by inotnrml 8 years ago | last reply 8 years ago