A friend tested their homemade micro hydro generator this weekend, and everything worked according to plan. You can see the system in this YouTube video:
He recorded 46VDC (open circuit voltage) and 2.6 amps at 12 volts when connected to a deep cycle battery. It charged a battery from 12.1 to 13.7vdc overnight. “We will tweak it to see if we can get 5 amps which may be the max for the PMM I am using”.
At 2.6 amps and 12 volts he is producing 750 watt hours per day, everyday and of course, about double that amount if he can get the output up to 5 amps with a bit of tweaking.
This system is setup at a family off-grid cabin and the output is all they need to run the cabin lights, stereo, etc.
Will see if we can talk Doug into creating another video to show the workings of his homemade turbine….
Update: pipe is now dug in and buried and the power is connected at the cabin to the batteries. Owner indicates there wasn’t much loss in the wire. Now he’s looking to increase the size of the pipe – sounds like a boat…always looking for something bigger.
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Filed under: Grid