How To Make A Solar Panel
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This is part 3 of a three part article on how to make a solar panel. For part one, see Homemade Solar Panels, and for part 2, see How To Build a Solar Panel.
When we make solar panels, we like to use a good exterior oil based primer and a few coats of paint on all wooden parts to get the longest life after installation. The paint job comes out best when you paint the individual pieces before assembly and then apply a final coat on the finished product before installing the cells and plexiglass. This might be a bit of overkill on my part, but so far I think it has paid off.
The face of the solar panel, which faces the sunlight should be covered with plexiglass to protect the cells and keep the weather out. You can often find scrap plexiglass for free or very inexpensively, but make sure it is in good condition and doesn’t have excessive scratching or any sort of coating.
The plexiglass can be pre-drilled around the edges and then screwed into the frame, but be careful not to break it when drilling or screwing because the screw holes are going to be vey close to the edge of the sheet. Plexiglass is much more sturdy than glass but it is still somewhat brittle and can crack around the edges.
When we make solar panels, we like to use a good exterior oil based primer and a few coats of paint on all wooden parts to get the longest life after installation. The paint job comes out best when you paint the individual pieces before assembly and then apply a final coat on the finished product before installing the cells and plexiglass. This might be a bit of overkill on my part, but so far I think it has paid off.
The face of the solar panel, which faces the sunlight should be covered with plexiglass to protect the cells and keep the weather out. You can often find scrap plexiglass for free or very inexpensively, but make sure it is in good condition and doesn’t have excessive scratching or any sort of coating.
The plexiglass can be pre-drilled around the edges and then screwed into the frame, but be careful not to break it when drilling or screwing because the screw holes are going to be vey close to the edge of the sheet. Plexiglass is much more sturdy than glass but it is still somewhat brittle and can crack around the edges.
To attach the actual solar cells you just solder the tabs on the underside of each cell to the connection points on the next cell. You continue this pattern to complete the row and then tie the completed row to the next. Its actually pretty simple.
There are different options for attaching the cells to the panel. You can glue the cells in place with a small amount of clear silicone caulk in the center of each cell and then press lightly in the center so it sticks to the field panel. Just don’t use an excessive amount of caulk and only attach it with 1 dot in the middle of the cell. This allows it to be somewhat unrestricted so it can expand and contract independent from the panel it is attached to, (which will also move and swell over time) and prevent cracking.
Depending on the type of cells you are using and the location of the tabs and contact points, you may be better off attaching all the cells to the panel first and then soldering them together after they have been anchored.
There are different options for attaching the cells to the panel. You can glue the cells in place with a small amount of clear silicone caulk in the center of each cell and then press lightly in the center so it sticks to the field panel. Just don’t use an excessive amount of caulk and only attach it with 1 dot in the middle of the cell. This allows it to be somewhat unrestricted so it can expand and contract independent from the panel it is attached to, (which will also move and swell over time) and prevent cracking.
Depending on the type of cells you are using and the location of the tabs and contact points, you may be better off attaching all the cells to the panel first and then soldering them together after they have been anchored.
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The entire unit needs to be wired to the outside for final connection. Personally, I like to test completed panels for amps and current before putting them into service. This helps me determine how much power I can except from the panel. Your panels can be mounted onto a stand, or a roof and usually need to face south.
This concludes our article on how to make a solar panel. Please see our other articles and reviews in the menu area. I hope you found this information helpful.
This concludes our article on how to make a solar panel. Please see our other articles and reviews in the menu area. I hope you found this information helpful.