This is a specification page. Better Generation do not sell this product.
The Windtronics turbine is a gearless wind turbine that loosely resembled a bicycle wheel encircled by a cowl. Unlike most turbines, which generate power at the hub, this device has a a series of magnets positioned around the outside of the rotor. They are aiming at the rooftop wind turbine market. By the looks of it, Windtronics have done well on their marketing and press coverage and seem to have a distribution deal lined up with US DIY chain Ace hardware. Only available commercially from Spring 2010.
The Honeywell Wind Turbine has a blade diameter of 1.80 metres. This means it has a swept area, or capture area of 2.54 square metres. This is all important when comparing wind turbines, since it directly relates to the amount of passing wind energy
the turbine blades can intercept.
Honeywell Wind Turbine power output curve
The graph below shows the power produced (in watts) for the Honeywell Wind Turbine at different wind speeds, based on
data supplied by the manufacturer.
The green line shows the actual output that the wind turbine achieves at the given wind speed,
according to the manufacturers.The dashed line in the graph shows the theoretical maximum energy that this turbine could extract from the wind,
according to Betz's Law (59.3%). At a typical wind speed of 5 m/s, the Honeywell Wind Turbine is extracting
111 Watts of power from the wind, which is an efficiency of 56.74%.
Wind turbines can only convert some of the energy in the wind into electricity. The graph here shows how efficient the
turbine is across the range of wind speeds you might get.
The orange line in the above graph shows the efficiency ranging from 0 to 1. The grey line is the previously mentioned maximum efficiency - The Betz Limit. If this limit is exceeded, the manufacturer's claims are not to be trusted!
While these graphs give an indication of the instantaneous power and efficiencies you might expect from the Honeywell Wind Turbine turbine, working out annual power production is more complex.