Interesting to see where this leads... as electronics become more efficient, those picowatts could add up to something.

I've been interested in duplicating some of Tesla's experiments on static electricity and high frequency... I really think there's an answer in this somewhere (I suspect the Galt Motor was Rand's envisioning of someone using this same process), it's just a matter of reinventing the wheel.

Just think, electricity from a can of beer!

The droplets have a high dipole moment, BUT they don't have a net charge, right? So how do they leave a charge when they condense or jump away?

It is interesting. I do not know about where in the "developing world" the weathers and climates would be conducive (or "conductive," ahem), but I agree with Susanne that our own electronics are compelling motivators. Plus our temperate zone is very dewy many mornings. "... size of a camping cooler..." is about right: improved, this could serve camping and traveling. (Just to note, we have two such coolers, one modest, but the other served as our refrigerator for a month until we got new appliances in a house we were renovating. So, the cubicosity differences are measurable: one is carryable, the other is "portable".)