Windpower Guided Tour:About
From Windpower Guided Tour

Summary
The Guided Tour is written for people who want to know a lot about wind energy, but do not hold an engineering degree.
The categories answer most of the questions which students ask - without requiring you already have a degree in advanced math and physics. Starting from the basics about wind, The Guided Tour takes you to the challenging frontiers of wind energy technology as it relates to commercial, large, grid-connected wind turbines.