Abstract: A wind turbine system having a street light having an upright support or post on which is mounted a canopy housing any suitable lighting gear, and a wind turbine mounted above the canopy and operable to generate electrical energy with which to power the light, the canopy being adapted to augment the flow of air through the wind turbine.

Abstract: A blade for use in rotary machines such as a wind turbine blade has a plurality of dimples distributed over an area of a low pressure or suction surface of the blade which preferably extends from immediately adjacent to a leading edge of the blade at least partially towards a rear or trailing edge of the blade.

Abstract: An air handling system comprising an air guide in the form of a convergent divergent shroud and/or diffuser defining a path along which air can flow, such as to generate one or more regions of reduced pressure and/or increased mass flow rate of air within the guide in response to the passage of air through the guide, and a manifold extending from the guide and having an inlet and an exhaust, the exhaust being in fluid communication with the one or more regions of reduced pressure and/or increased mass flow rate and the inlet being in fluid communication with an interior of an air handling unit such as a condenser or air conditioning unit.