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Re: Re: +Just wondering about them mini hydro turbine units+
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Posted by Mike D. on October 21, 2002 at 13:46:27 from (126.96.36.199):
In Reply to: Re: +Just wondering about them mini hydro turbine units+ posted by screaminghollow on October 21, 2002 at 13:10:14:
There is a guy with a small operation in B.C., Can. He sells very well made Peltons for $500.00.
He has had many years of use with his, and has worked out the bugs from a firsthand point of view. He offers tech help with sizing a system.
The real risk with bad weather is flow. Couldn't that be solved with a large gate valve near to the point of contact with the water source. It is my understanding that you don't need a lot of head if you've got fall. The system I've looked at uses 1 1/2" PVC and the drop is over 40 feet from the source with a 200 foot run of pipe. At the turbine there is another valve that will divert water from the turbine if needed. The turbine uses from 1 to 4 adjustable jet nozzles.
I think there is a worth to the system. The battery banks that enable the invertor to do its thing have to be maintained and in near peak mode.
But from what I can see that isn't much differant to energy systems on offshore sailboats. Heck, those rigs have been in place and operational for decades now.
I agree with you on the hot water expense. I run my supply pipe from the pressure tank around our woodstove flue. That way the water get preheated some before it gets into the electric hot water heater. A reservoir tank for water to circulate is my next project on that front, but a ways off.
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