World Power Technologies' Whisper H40                                Installed near Bismarck, ND 

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Whisper H40 on one site. 

Turbine Specs from Manufacturer 

Swept Area  40 square feet 

Startup Wind Speed 

7.5 mph 

Peak Output 

900 watts 

Site Information 

Tower Height 

42 feet 

Wire Size  

2 AWG Copper 

 

Here's a set of graphs on the power, rpm and tip speed ratio for this turbine.

Here's a graph showing the hourly wind speed and wind speed distributions for this 42 foot tower and the taller 84 foot tower on this site.



Copyright © 2004 Michael A. Klemen                                                Site Table of Contents