Hydroelectric power has been used for almost 150 years, but it seems under-utilized. Over 35 years ago a friend and I rigged up a simple hydroelectric generator capable of producing a steady 12 VDC by mounting an automobile generator with a large impeller to a Styrofoam float and pivot arm in the large stream by our fishing camp. A regulator and battery stored the generated power for use in 12 VDC lights in the camp. During our absences the rig was lifted out of the water.

Forward to 2010 when a company proposed testing river-based underwater hydroelectric turbines in the Mississippi River to prove that the technology was feasible.

Why haven't we been researching and using this type of electrical generating capability for decades? I can imagine every town along a river being able to produced their own electricity this way. In fact, a simple water diversion chute and impeller turbine system is not that difficult to design.

Is the U.S.A. just behind the rest of the world in the use of non-dam hydroelectric generation?

http://www.swpa.gov/PDFs/Hydro/2010Meeting/Mississippi-River-Hydrokinetic-Power-Artman.pdf

http://theadvocate.com/home/362421-81/river-turbine-working.html

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