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less than $1 a watt DIY Solar Panel Part 2 Make your own solar panel series connection Bus Wire
Posted under solar panel power by soloarpowerhomeadminThis is part 2 and covers the basics for beginners + The cells I am using are all broken cells I purchased for a discount from Ebay. They were all fully pre-tabbed cells. They are the long tab or fully tabbed NOT the clipped tabs. This panel will cost about completed and requires about 1-3 hours of work + resin embedding cure times which are best applied overnight. Part 3 will detail the embedding process and adding an optional blocking diode. How To Build A Solar Panel. Part 1 : www.youtube.com DIY solder foil: www.youtube.com
Dan and his wife are so cool and I love all the green videos. thank you .
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my green lipp sync video
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Dan please finish part 3 I really like The resin idea. Love the channel.
Great video. I’m excited to see part 3.
this is freaking awsome!!!!!
can you do a video on lasers on solar panel and one with different colored light filters or a prism … i just was read a science fair project report saying that longer light wave lenghts created more power
I like how simple the instructions are.
us noobs understand what you r saying
Can’t wait for part 3.
if you where to make 4 panels like this, would it be possible or easier to make 4 extra long panels skipping the bus wire.
@eirpcalc In the uk solder is pronounced with the L, and lets face it, its english so its not wierd, you are.
The shadowing will definitely cause heating of the cells which can exceed 110 degree Celsius sometimes, and as you are doing makeshift lamination,this temperature will destroy it. Easier option is to use junction boxes with in built diodes but i guess you will have to change the “F” shaped bus bar scheme to may be a parallel one. where end rows are together and the middle ones are together, and then they go into the junction box.
@GREENPOWERSCIENCE Nice video buddy. I am studying solar energy engineering… As you are having two string of 18 cells each , I think its better to add reverse current blocking diodes on each of them. They are cheap also. It will prevent messing up the performance of whole panel in case of shadowing. So if you have 36 cells in series without the blocking diodes and there is some sort of shadow on even 2-3 cells, it will drastically limit your output current. (see above comment as well)
Great video, I love how your taking it step by step starting out at the nitty/gritty bear bones of it all - and even saving broken cells. But, is there any kind of wiring diagram that you can post or point to that illustrates the circuit layout? I understand the front and back as separate circuits and stacking to increase the voltage, but I’d like to understand more clearly the final bus strip connections that finish the circuit. I’m a bit lost with DC stuff so I’d appreciate it. Thanks!
Gee Dan, now I feel really dumb not having saved all those drips of sliver solder that always got swept away into the trash. But isn’t that the type of silver bearing solder used to sweat/join copper/copper and copper/brass plumbing connections? And although it can be used and obviously works, are there any specific characteristics (i.e: a higher melting temp, strength, conductivity, etc.) that make the lead-free silver solder more ideal than the electronic grade lead/tin rosin core solder?
@OcRefrigeration Well with your battery experience it should be obvious why you use a charge controller then. Watch the video again, he clearly states the reasons, there’s even an extra annotation.
If your not satisfied have a look at all the existing commercial solar units and charge controller spec’s. They will state anything from 17.5v upwards, do you think any manufacturer wants to make a charger that kills batteries? think of the warranty claims alone.
12 Volt Batteries are not made for this type of Purpose.
They Should be using 6 volt Deep Cycle Batteries for this Application.
When ever you Want to Live off the Grid. you use Trojan 6 volt Deep Cycles.
2-6 volt deep cycles in Series add up to 12 Volts.
Then you do, Battery Banks in Parallel for Current Consumption.
@ruuman in My Experience with Building and Servicing Electric Vehicles, Being a Battery Charger Repair Man,Etc in my younger years,Dealing with Alco Battery Factory,Trojan Batteries etc.So, you are saying, since Someone else makes a solar Panel to charge at 18 volts. they Can’t Be Doing it wrong? Hmmm, sounds illogical to me. Voltage still sounds too High. i Might go with 16 Volts max. But thats it. A 12 volt Battery Meters out at 13.2 Volts Period! Why are they not using 6 volt deep cycles?
@OcRefrigeration did you not watch the video? Dan clearly explained it at 2:40. Even commercial 12v battery charging solar panels you buy off the shelf come out at 17.5v -18v. The important part is “open voltage” as Dan stated, add a load it drops to the magic 12-14v zone. The charge controller then protects the battery from over charge when the battery is pretty much full and the load drops off.
In the World—Cars are 12 Volts.The Charging System of Car Should Never Exceed 14.5 Volts.I will Have to Check With a Battery manufacturer, but i Believe they Would not Like 18 Volts Going into their Batteries.Each Battery Cell is 2.2 Volts.6 Cells in a 12 Volt Battery.Metering out at 13.2 Volts for a Fully charged Battery.You Can Boil a Battery if you Put that kind of Voltage into it.Shortening the Life of your Batteries By Probably Half. Standard Battery Life is 4 years.
Why are you Looking for 18 Volts to Charge a 12 Volt Battery?
Thank you for taking the time to do these. It’s the best ones I have seen on YouTube for a DIY solar panels!
thanks for spending time on these videos
THAnks DAN=]
@onekeypianoplayer if this is to vauge for you then you should buy them. Because this is as simple and basic as it gets. I am guessing all the other people who thought is was helpful where “Ordinary” also.
@Den0Q I will once we are building. The key to building these things is to do it in an area that has no building codes. Yes there are counties in almost every state that dont have any building codes. Here in WA there are 3 counties. I and some of our friends are buying land in Stevens county. about 80 acres. We will be building a 4 acre aquaponics farm. Our goal is to produce enough food to feed our selfs and make enough money to provide a small living for our group.
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