What impresses me most is how accessible this is. Even a child could operate this solar panel. I also feel you don't need many specialized skills to build it

What impresses me most is how accessible this is. Even a child could operate this solar panel. I also feel you don't need many specialized skills to build it from scratch once you have the schematics. We need more ideas like this. [edit]: FrojoS' links show they do have more ideas like this.