How to make efficient homemade photocells?
The word “efficient” is interesting here, since even commercial solar cells aren’t very efficient. Oh well. That’s another topic. Here’s a Wikipedia reference to solar cells: Solar cell – Wikipedia, the free encyclopedia You really can’t build the solar panels from scratch. The materials (most often silicon crystals) are too high-tech. You can buy pre-built solar panels and assemble them on a roof or something similar. You also need equipment to connect the power to the power grid, if you plan on using the power it that way. It’s also nice to have something to detect bad solar panels as they do not have an infinite lifetime.
