WINDERFUEL

installing solutions to reduce your power bill

www.winderfuel.com

 

residential wind power

featuring the endurance wind turbine

and

solar thermal collectors

for hot water and supplemental residential heating


 

Technical Details - wind turbine

  
  
    Residential Wind Power  

 

    Solar Thermal Collectors  

 

    WINDerFUEL 

 

the Endurance wind turbine - a residential wind turbine for the modern home 

www.windwardengineering.com/Endurance

 

Endurance Wind Power, Inc. – main website

www.endurancewindpower.com

 

Rotor

 

 

Number of blades

3

 

Blade length

2.56 m

8 ft 8 in

Diameter

5.5 m

18 ft

Swept area

23.8 m2

256 ft2

Rotor speed

200.4 - 206 rpm 

 

Operating tip speed

58 m/s

133 mph

Maximum tip speed * 

<71 m/s

<160 mph 

 

 

 

Overspeed Protection

 

 

Power regulation

Stall control (constant speed)

 

Fault or high wind

Rapid, fail-safe brake on rotor shaft

 

Backup protection

Redundant & fail-safe mechanical brake

 

 

 

 

Performance

As Measured 
(high elevation)

Density Corrected 
(sea-level)

Cut-in wind speed

4.2 m/s (9.4 mph)

4.0 m/s (8.9 mph)

Cut-out wind speed

24 m/s (54 mph)

24 m/s (54 mph)

Rated power

3.75 kW

3.75 kW

Rated wind speed

10.7 m/s (24 mph)

10.2 m/s (23 mph)

AEP **

12,010 kWh

12,860 kWh

 * Occurs during primary brake failure, with fully worn pads (on secondary brake), during worst possible wind  
   conditions and generating fault. 
** Net power to the grid based on Class-3 (Rayleigh) wind resource (12 mph annual average) 
 
 

 

 

 
 

 

 

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