Buying solar panels can be quite expensive and especially if you want to run your whole homes electricity on it. There are ways to Build Your Own Solar Panel at home and steps to be followed to do so are:
1. Purchase the cells first –
There are various types of solar cells to buy today, but the choice will be polycrystalline cells. Buy however many you require for how much energy/wattage you’re looking to produce. The specs should be listed when you purchase the cells. Make sure to buy extras. These cells are extremely fragile. You can buy them online or get them from the nearest hardware store. You may need to dip them in hot water to clean off the wax which was used to ship it.
2. The right tools are required –
if you have got your solar cells now get yourself some important tools like a soldering iron, solder, solder flux for getting the grease off the wires, a saw, wooden board and glasses to protect your eyes while soldering, along with a multimeter to measure voltage. Don’t forget the board to attach the cells to. Measure and cut the board according to the need and leave place to attach the wires.
3. Cut all tabbing wires –
now connect tabbing wire to the back of the next cell in the array. Measure the length of that larger line, you need to double the length, cut them into two pieces one for each cell. You need to solder the tabbing but this step may not be required if you have bought a pre-soldered tabbing. And then heat one end of the wire to attach it to the cell.
4. Attach the cells to the board and solder them together –
Put glue at the back-center of the cells and press them into place on the board so that tabbing wire should run in a single, straight line by every row. The Tabbing wire coming in between the cells and should be free to move, with just the two pieces between each cell. One row will have to run in the other direction to the next one so that tabbing wire sticks out alternatively from both ends.
5. Connect the wires –
in the first row, solder tabbing wire to the front portion of the first cell. Now, solder those two wires collectively with a piece of bus wire, the equal size as the gap between the thick lines of the cell. Attach the end of the first row to the inception of the second with a long section of bus wire which extends between the two far thick wires. Prepare the first cell of the second row with extra tabbing wire, as you did with the first. Continue joining the rows with the long bus wires till you reach the end, where you will attach it with a short bus wire again.
6. Place them in their box –
cut out a container of plywood and paint it with reflective color and place or glue your panel in it before keeping it anywhere
7. Wire the panel –
Get a diode which will produce charge more than your panel will produce and connect it to the bus wire, securing it with some silicone. The light colored end of the diode should be pointing towards where the negative end of the battery. The other tip should be wired to the negative end of your panel. This restricts energy from traveling back through the solar panel from the battery when not charging. Now connect a black wire to the diode and run it to the terminal which you will need to fix on the side of the box. Now take a wire from the short bus and connect it on the opposite side to the terminal block. Lastly, purchase a charge controller and connect the made panel to the controller, making sure to attach the positive and negative accurately. Run the wires from the terminal block to the charge controller, using colored wire to keep track of its charges. Also Buy batteries which will work with the size of the panels you built. Connect the charge controller to the batteries and you are ready to go.
8. Seal it with plexi-glass –
after all that is done seal the front of it with a plexi-glass and mount it on your roof or wherever you think it would be better.