




Axowind 10 kW Power Calculator



Move the sliders to see the how changes affect the average energy output


Average measured wind speed




Wind speed measurement height




Wind turbine tower height




Altitude above sea level






Daily Average Energy Output 












Calculated Output for the Axowind 10 kW Vertical Axis Wind Turbine


Wind Turbine Hub Average Wind Speed



Average Output Power




Capacity factor (average power compared to peak power)



Average Daily Energy Output



Annual Energy Output






How
to use the calculator. If you know the average wind speed for your
area then adjust the slider to suit.
The wind speed measurement height is also important. The wind speed increases with height above
ground level and this calculator can allow for the difference between wind
measurement height and wind turbine tower height.





All
wind turbines need a windy site. A wind turbine is best suited to sites
which have an average wind speed higher than 5 metres per second. If your
site cannot achieve this average then a wind turbine may not be the best
option. Very small changes in average wind speed can have a large effect on
power output. If the site is marginal
then installaing an anemometer to measure wind speed may show the difference
between 4.5 or 5.5 metres per second.
This slight difference represents a 50% increase in annual
output. Also It is a false economy to
install a wind turbine on a short tower.
The recommended tower height for a Axowind turbine is 17m tall.



Each
location has its own special conditions. This calculator assume standard values for
wind shear, turbulence and Weibull distribution. The best way to make sure that the energy
predictions are accurate is to do wind measurement at the proposed location
for a period of 3  12 months and compare this with statistical data for the
area. This is combined with the power
curve of the wind turbine based on ACTUAL performance testing to give an
accurate prediction of annual power output.
Please contact us if you need more information.






