If you would like to see how the B-R wind turbine is doing, go to
http://wind-for-schools.caesenergy.org/pagewind.php?turbine=bancroft&period=10min.
Or google Wind For Schools, click on Nebraska, click on Brancroft-Rosalie (yeah, it is misspelled).
The turbine has generated 2176.51 KW-Hrs since it has been installed. The cost of 1 KW-hr of electricity is approximately 12.8 cents.