I saw Woof's complaint of no one posting rants! Ok, here goes!
Seeing Dan's new crossflow/banki turbine got me to thinking. I live in Pa., a low wind state, however it has many currently no longer utilized low head dams, as do many Eastern states. Left over from olden times, formerly used for milling grain or weaving. Whether turbines, or old fashened wheels, for ambience and power production. Now with the thousands of them in my state alone, just think of the untapped megawatts just waiting to come back to life!
Just as Habitat for Humanity, Adopt a Road litter cleanup and such, volunteers could drop pipes over the dam breasts ( with safety screens of course) and siphon varying ammounts into generators. Ten kw here, 20 there, thereby reducing the strength of undertow hydrolics that claim a few lives each year, making neighborhoods safer as a side benefit. With Community colleges and Tech schools combining resources to figure the best units for each Dam....
Tree huggers should have their input of course and such, but the environmental damage was done decades ago. The money made from production could be put to rehabing the towns, or nearby communities, whatever... only costs involved should be the materials used.
Add the Dams used for recreation and drinking, that are required to discharge x ammount daily to keep streams below them flowing, with a much higher head, and the numbers of kw's drastically could be upped ( the discharge pipe is already in place).
Could these resourses be tapped economically? Definately! With proper safeguards and co-operation from the required Federal, State, and local Governments, and power companies. Will this happen? Doubtfull, until the wife of enough people in power flip on an appliance and no juice is there to run it!
I'm sure each state has untapped resourses of some type just waiting to be used(drooled at the thought of putting a turbine in the irrigation pipe flowing off the mesa to Grand Junction for example). It's just a matter of enough people wanting to do the right thing, and coming together to get down and dirty!
Now back to reality..... Gary D