Hope someone can help me, I have built a home made hydroelectric system. However I don’t seem to be able to produce enough power to charge my 24V AGM batteries. My main power is from Solar , but I live in N Spain where I can’t rely on the sun .
So I live in a mill , which has a 3 M water shoot from a canal . The water is flowing enough to turn the wheel 15rpm . I have another wheel that has cogs ,that then turns a small cog wheel 11-1 ratio.
Attached is a 42 toothed bicycle sprocket.
I’ve taken off the blades from a 24v 800w wind turbine generator. On this I’ve put a small bicycle sprocket, with a ratio of 4-1.Giving me a total Rpm of 660.
It is 3 phase Ac , which passes through a charge controller converting to Dc .
With no load it rotates faster giving me a 3 phase V of 36v
So as soon as I put it on the load it slows to the speed I have mentioned, and only produces 20v .
From my description does anyone have an idea , what is wrong ? Quite possibly it’s me a novice at all this ! Or another cause ! From my research 660rpm should produce enough power to charge the batteries.
I can’t speed the water wheel up anymore, the only thing is to change the gearing if that seems the problem!
Look forward to seeing your comments, and ideas
Steve Spain