The Eco Whisper Turbine 650 is a horizontal axis virtually silent small wind turbine.Key features• Silent, sustainable, superior wind technology• 6.5m blade diameter ~ 21.1m height• 20kW rated silent wind turbine• 30 blades extending outwards from a centre hub• Dynamic slew drive eliminates requirement for tail• Solid structure maximises visibility of turbine to birdlife• Switched reluctance generator and reactive inverter• Hinged pole design• Three patents pending