Submersible hydro UW100 for sale

Hey Michael, I've got this unit with me in New Guinea.  I should be able to arrange to get it back to the U.S. if you're in the U.S. and you're serious.  Otherwise, let me know if you're somewhere else in the world.  I'd like to email you the original invoice so you can see how much I paid for everything.  It's still brand new, only been used for a few minutes when I tried it out in my river but the water speed just wasn't fast enough (my estimate of the water speed was wrong).  So when you see how much I paid for it, I figure we can figure out a reasonable price.  I'd rather not post my email address on here, but I might have to. I'll see what I can do.

Hi Mathew. Do not understand what you mean by profile---basically have small funds---looking to buy unit at half price---please keep it simple. michael.

Michael, if you click on Matthew's name at the top of one of his posts, it will take you to his profile.  His e-mail appears on that page.

Tom,
Velocity (ft/s) x Area (ft^2)= volume flow rate (ft^3/s), not (gal/min).
If you want gpm, you have to multiply the cubic feet per second by 448.83 to obtain gpm.

Matthew, Where in PNG are you ?

Hey guys, thanks for the ideas.  Problem is I don't have any elevation drop, and when I tried constructing a water trough, even with 12' long sides angled like a V toward the unit, I could still only get about half-power.  That was still unrealistic, since frequent heavy rains cause a large fluctuation in river level, as well as sending debris along the river.  I've racked my brain on this one, and I think our river is just too slow I'm convinced.  I took a risk in buying this during one of my (rare) trips back to the U.S., and unfortunately mis-estimated our river velocity.  Who said set up a water wheel and gear it up?  Yeah, possible.  Still have issues with erosion and the large fluctuation of river level (can be 10' overnight).  But I'm enjoying my solar panels in the mean time!  Much less maintenance...

Sorry man, hoping to get more than half for it. It's still brand new...

The UW100 is the old "Jackrabbit" generator. Its performance curves are optimistic, particularly when you are trying to use it in a river.  It does somewhat better when mounted on a towed barge.

Bottom line is that he would need to get the flow up to about 3 meters a second to get about 60 watts, and something close to 5 m/s for 90 watts. Depending on that rivers flow rate, the effort/cost is probably not worth it. 

It sounds like he is in the lowlands of Irian Jaya (aka West Papua). Based on PNG lowland rivers, I am guessing that he is starting with a flow of l meter/second, or less.

I think Matthew is probably making the right decision to cut his losses.