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/* Introduction */
* Renewable energy is also called "clean energy" or "green power" because it doesn’t pollute the air or the water. Wind energy is one such renewable energy source that harnesses natural wind power.
* This report presents a brief summary about wind energy and present day technologies available for horizontal wind turbines.
* A detailed taxonomy for horizontal axis wind turbines is presented covering parts of the turbine, control systems, applications among others
* A detailed landscape analysis of patent and non-patent literature is done with focus on Doubly fed induction generators used in the horizontal axis wind turbines for efficient power generation
* Existing products' information of major players in the market is compiled for Doubly-fed induction generators
* Existing market and future market prediction for wind energy based power generation is presented
==Brief History of Wind Energy==
