A couple of possibilities. Piezoelectric generation such as here http://tinyurl.com/y8k7unq. and undershot water wheel with a lot of gearing if setting one up doesn't violate state regulations.
what is the possibility of building a mill wheel in the river?
you can build a nice big one in the middle of the river and step gearing till it spins at generation speeds. used to be the norm for lathe shops not to long ago.
Rebecca Norman wrote:
We have about 3 or 4 foot drop of river height along the length of our land, so one suggestion was a canal or big pipe and then a ram pump utilizing that small head. But all along the river side is a 90 foot sandy and stony sheer cliff right up to the edge of the plateau, so a canal would probably often get dumped over, and a pipe would be prohibitively expensive.
I'm kinda late answering this interesting idea/problem.....
tel jetson wrote:my grandma's place is on a fairly large river. it's about fifty yards wide and ten feet deep. so there's a lot of volume, but it's very slow. probably only drops a couple of inches in the 150 yards of river the property sits on.
any ideas for energy generation or water pumping?