Free electricity may be a pipe dream, which is understandably dismissed, even IMO (how could you get free energy from nowhere?). But a gizmo which pulls electrical or magnetic energy from the sun or surrounding space by some heretofore unimplemented and unaccepted method is not as much of a pipe dream. However it's just as quickly dismissed by academic physicists as a pipedream even though they don't know what specifically they are dismissing.

So I agree! Keep your confidence if you think you've got an idea that may work, especially when there's a bunch of people who have a vested interest in your device not succeeding, telling you that it won't work.