Auto news on Youtube Sep 11 2017

how to make a homemade solar panel this is the first in three videos of a solar

DIY project everything you should know to build a 100 watt solar panel at home

in order to charge a 12-volt battery with solar energy a solar panel with 18

volts is required so to build a solar panel capable of charging a 12-volt

battery you will need 2 millimeters of tabbing wire and another of 5

millimeters solder wire is a must have a flux pen strapping tape also known as

short tape regular tape a solder arm between 60 and 80 watts and multimeter

one that conveyor of both voltage and current silicon paste preferably

crystalline with UV protection epoxy resin the best and easie way to do it

yourself to encapsulate the back of a solar panel this epoxy resins have

excellent adhesion to glass and acrylic plastic and ethoxy hardener here the

measure is two to one ratio and of course last but not least the solar

cells here is up to you you can purchase preet absolu cells they have tabbing

wire already attached it will cost a bit more but will saves you a lot of time

and work in video description below you find links to everything you need to

start building your solar panel let's get started the first set we have to

take is to measure the length of the tabbing wire between two cells grab two

cells and join them close to each other like this two or three millimeters

between them is enough with one cell face up is the negative side and face

down is the positive side measure the length of the tab wire along both cells

the job here now is to measure and cut the tabbing wire for all 36 cells for

your solar panel to make this task less tedious cut the

tabbing wire to one row of nine cells at a time and after that you can start cell

during the tabbing wire on the negative side of each cell to do this

first pass along each conduct line the flux pen this will prevent beading of

the solder Arum and also helps the cell to flow cleanly position the tab wire on

the cell and start soldiering from top to bottom in a continuous movement

soldiering is not so hard you get it right very fast but get prepared for a

couple hours of work so this type of 6x6 polycrystalline cells usually has three

connecting bus lines we have to weld 36 cells on the negative side first where

next it must be welded on the positive side that is the back of each cell

creating a string of 18 volts the needed current to charge a 12 volt battery one

of the best and strongest materials to use in a solar panel is tempered glass

three millimeters are more than enough for strength and durability being also

the ideal surface to start cell during your solar cells start by giving a good

cleaning

now with a clean surface we can start put things together but first let's

again see how a solar panel works the first cell in this row is the negative

side of the solar panel that will be welded to the negative bass wire

becaming this way the negative pole of the solar panel and continuing with the

next three strings of cells all welded together from front to back of each

other making this way a total of 36 cells of 18 volts

another thing to note is that solar cells are very fragile for this reason

and almost guarantee you will break one or more cells even if it is a very small

crack you can use regular tape and repair it easily now that you know how a

solar panel works it's time to connect all cells together to make this task

much easier here are some tips you can use to do this correctly

it is convenient to use a type off tweezers or even a way to hold the wire

in the correct place to weld Here I am using a scissor which works very well

another useful tip is to use normal tape to hold the cells in place in this way

they remain aligned helping you to weld more easily and quickly and if the

tabing wire is a bit long simply cut off the loose ends when you finish the job

now with all cells tab together it's time to clean again the glass surface

now with the glass clean it's time to position and secure the cells in place

by measuring the string of cells closest to the edge of the glass we find the

margin on all sides of the panel then with all cells in place we need to keep

each string of cells tightly attached to the glass first with normal tape and

next with short tape

now pass the short eight from top to bottom between each string of cells and

at the same time it is convenient to double check for any broken cells even

if there is a slight crack the cause affair is the encapsulation will pass

through it and the epoxy resin will eventually yellow over time

now with all cells secure in place let's proceed by cell during the string of

cells into the bus wire start by cutting a five millimeter wide tabbing wire to

the width size of the two middle cell strings and secure the bus wire with

regular tape

cut the loose ends of the cell tabbing wire and you're ready to solder the two

middle rows together here I will weld the tab wire from the positive side of

the cell to the bass wire which will then weld to the negative side of next

string of cells eASIC as you will see right away now is to do the same for the

other two row of cells on the top of the panel and then it ends with this two bus

wires which show the positive and the negative poles

and after this with a string of 36 cells connected to the positive and negative

bass wire we have to test if we have a promising solar panel with the panel

facing the Sun measure the voltage with a multimeter and make sure that it

produces at least more than 18 volts here I tested on a spring morning keep

in mind that solar panels always lose tension in the hottest hours depending

your region you should get about 18 point six volts during the peak Sun

hours now back to the office we going to proceed by soldering two copper wires to

the poles of the panel here you can choose to use the 5 millimeter bass wire

2 also to be connected to the junction box in the bottom middle of the panel

did I choose a pair of copper wires does the same job and I am not using a bypass

diode because I will use a PWM charge controller which protects the solar

panel and the battery from reverse current and overcharging respectfully

among other useful features watch the next video where we continue with this

extraordinaire solar panel see you there

you

For more infomation >> DIY Solar Panel - Build Homemade Solar Panels from Scratch - Part 1 of 3 - Duration: 10:36.

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DIY Solar Panel - Build Homemade Solar Panels from Scratch - Part 2 of 3 - Duration: 10:02.

As we left the previous video on how to build a 100 watt solar panel now we're

going to continue by preparing the solar panel for the encapsulation the first

step we need to do is by placing the silicon on the edges of the glass

this will prevents the resin from spreading out of the panel

epoxy resin is one of the best ways to keep solar cells from a home made solar

panel away from moisture for a panel of this size you will need about 40 ounces

about three pounds or one kilogram is enough it's not cheap but it is the best

choice over the eva film to encapsulate a solar panel made at home to know where

to get this type of clear epoxy resin follow the links in video description

below and of course epoxy hardener here the blend should be two times the epoxy

resin for one hardener

and mix these two compounds in a plastic container and mix it slowly mainly to

avoid getting air into the mixture

after about two minutes mixing the resin with the hardener mix it again in

another container to obtain a faster and stronger curing finish this second

mixture must be made to obtain a perfect and well cured resin

now what we have to do is to pour the mixture on the back of the panel to do

this simply pour the EPOC see resin from top to bottom in a constant movement

and after 12 hours you will have an encapsulated solar panel

now is time to make the panel frame get three l-shaped aluminum profiles two

meters long and at least three millimeters thick you can also go with

wood it all depends on your budget and how much you want to spend with your

panel this part can be done at the beginning knowing the size of the glass

the panel frame can be made and then with the glass attached on the panel

frame with silicone proceed with the welding of the cells and the bass wires

until finally the encapsulation is made but always put the silicone in the edges

of the glass before doing the encapsulation now I'll leave you with

the images on how to make the frame for your panel measuring the length of each

side of the glass mark each profile with a marker leave at least two millimeters

of cutting edge

next to cut the profiles you can use a cutter holder with a 90 degrees angle

but it is best to use a miter saw

an angular ruler can also be used to check the cutting angle it is also

useful to keep the profiles in place during assembly

and the best thing to attach the glass and frame together as to use stainless

steel brackets and screws for this panel I use 12 brackets 8 to support the glass

and 4 to join the profiles position the brackets in place mark and drill the

holes and now join each frame together

as I mentioned earlier we can make the frame before starting putting things

together we can make the frame and attach the glass with silicone then

start soldiering the solar cells the bus wire and in the end with the

encapsulation so add the silicon to the inner base of each profile then attach

the glass to the frame next put the brackets in place add the junction box

and then the 100 watt solar panel it's finally concluded so now we assemble a

frame and the encapsulated panel together

and now we put the brackets in place but if you decided to add a back sheet like

this one on the back of your panel do it before making the holes of the frame and

then proceed by putting the brackets in place Here I am NOT using the back sheet

and the reason is for you to see how the back of a solar panel looks like

and now glue the junction box with the same silicon paste make a hole to pass

the pole wires and you have a solar panel in your hands and now watch this

next part to see the voltage and amperage test

thanks for watching and I'll see you there

For more infomation >> DIY Solar Panel - Build Homemade Solar Panels from Scratch - Part 2 of 3 - Duration: 10:02.

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let's build a sand castle with a watermelon on top (Minecraft Bedwars) - Duration: 31:48.

For more infomation >> let's build a sand castle with a watermelon on top (Minecraft Bedwars) - Duration: 31:48.

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Implement Consult - Build a Business in 90 Days - Duration: 2:01.

It has really been exciting to work with this new way of doing things

I have been employed in SKAT for more than 10 years

And this is probably the most fun work I've ever been part of.

In addition we have developed so many new products from this.