This research is constraining on wind power, particularly studying the horizontal wind turbine and its efficiency. The wind turbine is considered an important method to convert wind’s kinetic energy to electric power for humankind’s benefit. An ordinary wind turbine has a design point which means that the turbine will not achieve its best efficiency until the wind velocity reaches the designed point. In other words, the turbine will not be able to convert a maximum amount of wind energy if the wind velocity lower or higher than the design point. However, wind turbines cost a lot, and the outcome does not make this cost reasonable. This research is searching for untraditional solutions to increase wind turbine efficiency. The smart wind turbine blade concept with the changeable surface model is a new method to increase wind turbine efficiency. Two smart blade models have been analyzed during this research, and the results show that both blade models can increase power extracted from the wind. Using smart blade models with the changeable surface will create a new path of increasing wind turbine efficiency.

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