Well, I hardly know anything about this form of motor but from what I've been told by a friend (which I will be looking into in the near future) is a motor called the "Bedini" motor. Apparently I COULD build a motor that would be enough to power my 850w computer + screen, speakers, refrigerator and evaporative cooling for around $300.
From what I can gather, it's very much like a generator that has two magnets slightly offset so that they attract a piece of metal which would turn and generate electricity before pushing the magnets off again as to attract the piece of metal to turn in the opposite direction - if that makes sense.
I don't know if I can nor if it's as good as I've been told it has been but I thought it might be an interesting motor to look into if you're handy and don't want to spend so much of inefficient solar panels.
I'll let you know how I go when I attempt to build mine in the near future.