Originally Posted by first wind
the article about the bicycle bottle didn't mention any energy source at all. it sounded like it was zero human produced energy to give you a half liter of water
in an hour.
It uses solar
cells and a Peltier cooler to condense water
. I've seen a diagram of it before. If you look at the photo
in the link you'll see it has solar
cells on each side. Small ones at that.. When riding the bike the legs will shade the solar cells.
I suspect the 1/2 liter/hr may be a bit of marketing
hype. Probably more like 1-2 oz per hour in high humidity areas, as most of the time one side's solar cell or both would be shaded.