Sarel Minnaar

The Real Price of Keeping Your Turbine SpinningWhat Counts as Routine MaintenanceThe small wind turbine maintenance cost varies with tower height and rotor diameter. Smaller residential units often require a yearly service that includes lubrication and electrical...

Understanding the Anatomy of Compact Wind Energy SystemsRotor Blade Geometry and Pitch AnglesThe rotor blade is where wind becomes work. In any small wind turbine drawing, the blade geometry and pitch angles determine whether that energy is captured cleanly or wasted....