There are two kinds of solar panels you can make at home. If you are looking for a school project to demonstrate how solar panel technology works and want to make your own solar panel from scratch, then read our DIY solar panels post. If you are looking for a way to make your solar panel from silicone solar cells to save some money on solar panel assembly, read on.
So far the cheapest way to get a good quality solar panel is to solder one yourself. You can purchase all the materials required for cheap and then spend some time soldering individual cells. Going this route allows you to get solar panels for as low as $1 per watt, while if you buy ready assembled modules, you’ll pay at least $2-$3 per watt and often even more.
How do you start with home made solar panels? First of all you will need all the ingridients and equipment. Buy solar cells, PV tinned interconnection ribbon and soldering iron (if you don’t have one). You will also need some wood, acrylic glass and transparent silicone (to make a weather protection for your solar panel). First you solder one line of solar cells together (make sure you solder them in series, so their voltage adds up) after that you solder your rows of solar cells together to act as one solar panel (you can connect them either in parallel or in series depending on what output voltage do you need).
If you soldered everything correctly you should have a bunch of cells soldered together in a rectangular form. Take it outside in a sun and test output voltage. You have to make sure your home made solar panels work, before you enclose it in a protective case. The last step is to make a box out of wood, put your soldered cells there, place acrylic glass on top of it and seal everything with transparent silicone. This will make sure water and snow don’t damage your delicate cells. Don’t forget to leave positive and negative connections to hook up your homemade solar panels to your electrical system.
