How To Build A Solar Panel - Part 15 - School Series Part 2

Visit http://www.solartechtown.com to view the full video.

In this video I'm going over the following topics:

-What is current and voltage and how those two work together.

-How current flows throughout the solar panel we built in these series of videos.

-How Ohm's Law works, and how to use different equations from Ohm's Law.

-Why I needed an analog amp meter for my syste.

-Proving that the amps is what is effected when you break a solar cell and not the voltage.

Category:

Howto & Style

Tags:

• how to build a
• solar panel
• solar energy
• diy
• robert smith
• solar cells
• solar tech town
• bus wire
• tabbing wire
• do it yourself
• ohms law
• current
• voltage
• amps
• analog amp meter

[fybelectric]

i want to build a 270 watt panel i know that my cells are 1.75 watts ,and 0.5v ,143 ohm 3.5 amp i am having troble with starting to figure out my volts as my starting point so my know,s are 270 watts and my per cell info can you help

[RobertSmith3]

@fybelectric

Well to produce 270 watts, if each solar cell is rated at 1.75watts, you are going to need 154 solar cells.

So since you know each solar cell is rated for .5v, you can just do the math which is:

154(solar cells) x .5v = 77volts if you are hooking it up in series

[tedohho]

Thanks again Robert. Now I know I am gonna make an "A" in 101 solar by Robert.

You are a teacher and a dar n good one. Man you are going somewhere and we are following you. May God Bless you and keep it up.

[RobertSmith3]

Thanks for all your comments, I've read them all, I really appreciate it

:D

[rayofminneapolis]

Thanks for teaching all this good knowledge! You do a good service to humanity.

[bokuwahimodesu]

I'm an electrician and I learned the Ohm's law equations on a prayer wheel, but your pyramid is a far easier way to remember them. I've just watched all of your videos up to this point in one sitting and I'm not finished yet. You're doing a good thing here. I was looking for some DIY solar panel info and you did not disappoint. Nice attention to detail. GJ Thanks

[jezalino]

Wow I could have just watched this vid instead of paying that money for electrical school..

[monicapttrsn]

Robert thank you so much for teaching us. You are great! You built the panel in a manner that most of us would in terms of learning as we go, simplifying each step. Your lack of sophisticated educational techniques is what has helped so many of us to actually learn to build a solar panel. Please keep teaching. Many in the world would appreciate some electricity.

[toklaut7]

Hi Robert, i got lost in this video. How did you know that it produces 63W and 18v? Thank you

[lgsr1]

Questions: 1) Could you have glued cells directly to the treated plywood? It looked like the peg board was only used for the holes the use of tile spacers? 2) Did you paint with white for any specific reason? I know white would be coolest as a reflector of heat and black would be hottest. GREAT series!!! Watched all 15 parts. A lot of time and editing! Good job!

[KjeftA]

@fybelectric

If you build a 77volt panel, you dont really have anything you can use it for. what you can do is to build multiple panels for charging a 12volt battery, and then use a >270watt inverter to power your applience (stereo, computer etc..) on120 or 230v, or whatever you need.

if you build 4 of the63w panels Robert just made in the video, and then connect them to each other in parallel, then you get 18v, and 315 watts. (more is better) Then you need a power manager able to handle it.