Couldn't find the answer anywhere in the forum so I'll put it here and hope you guys can answer. I'm interested in buying some solar panels as a school project (I'm a tech teacher). I have some students that are interested in using solar panels to set up a small kiosk powering station for laptops/phones/tablets as a service project. I know a few basics about electricity, circuits, etc and have been experimenting with small solar panels.
My questions: how many/size solar panels would we need to produce enough voltage to power say 2-3 devices at once? I realize we would