This paper briefly describes the formation of kinetic form of solar energy, which we call wind, so I took the opportunity to brief overview of the uses of this energy through the history of mankind. Particular role and importance of the vision of wind power in the future, the type and principle of operation of wind farms. Included in these numbers are significant locations and characteristics of wind power in the Republic of Croatia, and the most significant global wind power. I mentioned the possible variants of ecological accidents related to the operation of wind farms. The paper also highlighted the importance of appropriate measures of disposal of waste generated during the construction, operation and wind power. The paper describes the impact of wind farms on the environment, in particular the impact on soil, air, biodiversity and the ecological network, birds, landscape, cultural heritage. Attention was drawn to the impact of noise on the environment during construction and during operation the wind farm. Mentioned are the advantages and disadvantages of wind power which is also very important for this subject, so the subject of this paper comes down to the question of how much energy as wind power profitable and whether to encourage their development in the future. One thing is certain, wind power does not pollute the environment. Their work does not come to the production of carbon and sulfur dioxide, which are one of the biggest polluters.