Guide to building your own solar panel

Tired of seeing your electric bill go up and unable to move to a more sustainable model because of the price of the panels? If this is your case, there are alternatives, like making it yourself. With these simple steps, a nearby DIY store and the Internet to buy your missing materials online, you don’t have to be a solar expert to get your own home system. Doubts about installation of solar panels there are a lot of them, so we try to erase them.

Guide to making your own solar panel.


Before you start making the panel, you will need several materials. The good news is that at any home improvement store or on the web, you can buy them without difficulty. That’s all you’ll need for a panel like the built-in one this project. The total price is surprising: just over $ 211. With that, a system with two solar panels, an inverter, and a meter would cost around $ 440.

  • 28 solar cells.
  • 2 sheets of glass.
  • 6 amp rectifier diode.
  • Aluminum frame 30 x 30 x 3.
  • 5 mm flat cable.
  • 2mm tape.
  • Silicone.
  • Tile spacers.
  • Connection box.
  • Welder.
  • Terminal block.
  • Heat-shrinkable sleeve.

To have the complete system, you will need to add the inverter to the list and, if it does not have a performance meter, a power consumption meter.


1. Get to work.

Now that you have everything, it’s time to get down to business. To do this, you can start by soldering the cells following the series diagram, until you have your panel. In the case of this example, a four-band module was chosen, with seven cells in each one. However, you can adapt the shape according to the characteristics of where you are going to place it.

Then add a little silicone on the back of the cells and stick them on one of the glass sheets. Add glue if you want to strengthen the bond.

Once it dries well, place the panel on the other side and install a tile cross between each of the cells if you want to give the system more rigidity. Then apply silicone around the edge of the glass and glue the other sheet, so that the cells are between them.

of them. Drying process.

After the construction phase is complete, you will need to wait for the panel to dry for at least a day. If there is a gap between the two crystals, you can now take the opportunity to close it with more sealer, although you will then have to prolong the drying process, which can take up to three days. Finally, if you want to protect the glass of the panel, you can place an aluminum frame around it which will further strengthen the structure.

3. Mount the connection box.

For everything to work, you will need the system to be connected. So in this step you will need to install a junction box on the panel, preferably at the back. The positive and negative of the module must be there, so that it can be connected to the inverter (next step). To prevent the current flow from being directed to the panel when it is in production, a diode can be included between the positive of the panel and that of the inverter which, precisely, will help in this goal.

Four. Inverter and performance indicator.

The next step in completing the home system is to obtain a compatible inverter that adapts to the amount of energy you expect to harness. As you can see, for the original project, a system with a capacity of 100W was enough to convert a good part of the energy captured by the three designed panels.

If the inverter is not equipped with a performance indicator that helps you know the current output, you can purchase a power consumption measurement system which, although designed for electrical appliances, will also be used for solar panels.

5. Start-up.

If you’ve followed all of these steps, all you need to do is put your panels in the best location you have and start capturing and converting the energy. Check behavior regularly And, if you see that the maximum output voltage of the panels has been reached, everything is working and your home system is operating at the ad level.

The question of the useful life of the panel remains to be clarified, which will become clearer over time. Until then, the savings on manufacturing versus purchasing will help you pay off your investment much faster.