No funnel propless wind turbine and retrofit method

A method of retrofitting a fluid stream turbine onto an existing propeller turbine having propellers mounted to a propeller shaft and that is supported by a multi-legged tower, the fluid stream turbine comprising:

• a vertically-mounted vertical rotational axis post supporting a vertical rotational axis post bearing;
• a horizontal flywheel comprising a wheel and a plurality of blades which protrude outward, the horizontal flywheel being rotatably mounted horizontally to the vertical rotational axis post;
• and
• a wind-blocker housing rotatably mounted to the vertical rotational axis post, wherein the wind-blocker housing comprises:
• a curved side wall configured to cover a portion of a radial periphery of the horizontal flywheel;
• a top horizontal wall configured to cover a portion of a top side of the horizontal flywheel,
• an adjustable rudder disposed on the top wall and configured to cause the wind-blocker housing to rotate such that a front of the wind-blocker housing always faces directly into a fluid stream;
• a first diverter scoop disposed at the front of the wind-blocker housing and configured to direct a first portion of the fluid stream toward the plurality of blades;
• and
• a second diverter scoop disposed at a rear of the wind-blocker housing and configured to direct a second portion of the fluid stream toward the plurality of rear blades at the same time, the method comprising:
• removing the propellers from the propeller shaft;
• and
• operatively connecting the fluid stream turbine to the propeller shaft.