The basic problem of the Screw turbine its the low RPM and often the need to have multiplying gears to attain the necessary RPM, which can be problematic. The
Adding to Max message: Small hydros, in this case, where the charge controller allows the turbine to operate at its peak ( producing voltage several times
SUSAN: I have several articles that cover SCREW design, construction , use if you are interested. Nando ... From: susankaveny1 To: microhydro@yahoogroups.com
You can avoid a DC to DC step down converter and charge the battery directly form the hydro, however: (a) it will be rather inefficient (b) it will operate
QUESTION 1: Yes and NOT -- Mostly NOT - For the turbine to operate properly, the load needs to allow the turbine to rotate to its best RPM -- in this cases