"There are credible reports that a 1MW version of his device, producing many times the energy that it consumes, has been on trial in an industrial plant in Nort

"There are credible reports that a 1MW version of his device, producing many times the energy that it consumes, has been on trial in an industrial plant in North Carolina for months, with good results so far." - This. This is why scientists are skeptical. "Is there a plant" isn't a hard scientific question. We don't need or care about "credible reports". It's there or it isn't. And if you refuse to admit one way or another, you're almost certainly lying about the whole damn thing.