[mchannon]

If you remember back to the perpetual motion machine, that was supposed to produce more electricity than it consumed, you'll capture the mindset detractors like myself have.

But look, our PMM is producing this many volts! And it works great on paper too!

I haven't seen any data or reports to show this competition actually tested built units and measured both their water output and energy consumed, and did so in a variety of climates. In areas where the mercury has gotten below freezing, for instance, there is no water in the air, and yet, we're supposed to believe these snake oil machines are producing 2000gal/day for $0.02 each, even there.

[drewm1980]

RE "no water in the air blow freezing", that's not true. In the mountains you can hang your towel up to dry at night. It freezes, then dries through sublimation. Ever seen funny smooth ice formations?

[mchannon]

This sounds like a koan:

"If there is a frozen towel in the mountains, is there water in the air if there is no one there to measure the humidity it produces?"

Assuming there were millions of frozen wet towels in such conditions, any sublimated towel ice would rapidly drop back out of the air as frost.