The Endurance Turbine
- Fiberglass Blades
Fiberglass blades use high-performance airfoils designed specifically for insensitivity to roughness (bugs and dirt), low Reynold's number operation (low speed) and stall control (constant speed operation), making the Endurance one of the quietest running small wind turbines in the world.
- Rotor Hub
Rotor Hub is a sandwich construction for high strength and long life, with taper-lock bushing connections to the main shaft for easy alignment and high torque capacity.
- Dual pneumatic brakes
Dual pneumatic brake calipers operate independently to ensure redundant, failsafe protection against over-speed, making the Endurance safe for residential, agricultural and corporate uses.
- Large 16" brake disk
Large 16" brake disk provides high torque capacity, and is located close to the turbine rotor for maximum safety.
- Main shaft bearings
Main shaft bearings were selected following detailed engineering analysis for extreme loading, maximum deflection and extended life. Bearings are housed in pillow blocks for self-alignment and ease of serviceability.
- Induction generator
Induction generator delivers grid-compatible power eliminating the need for an inverter, batteries or any other power electronics, thus improving efficiency, increasing reliability and lower product costs.
- Gearbox
Gearbox is an inline helical with a 9:1 gear ratio, a high service factor (2.4) for long life, and a hollow shaft for direct connection to the main shaft (no couplings).
- Tail
Tail orients the rotor upwind of the tower using free yaw, thereby minimizing yaw error operation and eliminating tower shadow noise.
- Solid state relays
Solid-state relays to control the electrical connection to the grid are neatly housed in an easily accessible control panel from the ground, making maintenance and servicing quick, convenient and easy.
- Tower
Tower is available in tilt up 63', 84' and 105' tower heights, designed for installation and maintenance convenience and safety (Lower heights are custom designed to suit individual needs - higher height towers produce more wind and thus more energy).
- Slipring
Slipring feeds output power to four high-voltage wires (hot, hot, neutral and ground) running down the tower connecting directly to the home and electric grid via a breaker panel, similar to any large appliance.
- Turntable yaw bearing
Turntable yaw bearing is a 4-point contact ball bearing designed for high overturning and thrust loads and oscillatory motions.
- Anemometer
Anemometer senses cut-in (4 m/s) and cut-out (25 m/s) wind speeds, providing additional levels of diagnostics and monitoring for optimum performance.
- RPM sensors
RPM sensors for both the rotor and generator offer redundancy for increased safety.
- Onboard control system
Onboard control system continuously monitors and manages turbine operation, conveniently located at the tower base in the control panel.
- Nacelle cover
Fiberglass nacelle cover and nose cone keep the weather out and provide a sleek appearance.
- Wireless remote monitoring unit
Wireless home unit provides remote monitoring of turbine with display of wind speed, power output and other useful information, and allows the owner to stop and start the turbine from the comfort of home for maximum convenience and safety.
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The Endurance
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