Okay here it goes. One of the ways that it would be possible to get free energy is that when 2 plates a face to face with nothing between they are atacted to eachother. Even if you could get "free" evergy from this it would need massive plates and bepretty small. why dont we just use gravity. The only reason we cant get energy from gravity(well we can like hydroelectricity) is because we always have to push and object back up to get it to give us evergy again. but if we could find a way to use it without having to put in energy we could get massive amounts of energy we cant use yet because we cant harvest it.