Free electricity how to make a low cost opensource hydraulic turbine for 40$

THE TECHNOLOGY WE NEED FOR
THE FUTURE WE WANT
For less than $50 you can build a very low cost hydro turbine that produces a medium current with little head.
It can be used in any water current and is made only of recycled materials that are easy to find in stores, and ordinary tools.
The goal is to produce 200 to 500 watts of power / 5-12kWh per day from a 2m drop and around 50L per second.

#renewable #energy #DIY #turbine