This work briefly describes wind and its potential as a renewable energy source, as well as the growing need for electricity. The division and types of wind power plants are listed and the main parts whose mode of operation, types and purpose are briefly described. Croatian potential in the form of wind energy utilization was considered, as well as the most suitable winds that occur in certain parts of Croatia. Surface protection as an important condition for extending the life of wind turbine blades, but also methods of recycling and disposal of waste generated after replacing old and damaged blades, are described in more detail. The goal of conducting an analysis of the profitability of a wind plant depending on the wind speed within an area of Croatia was to show that wind speed is the key condition when considering where to construct a wind plant. Based on the wind speed measured during one year, it was shown that an area within Croatia had such a low wind speed that it was not found to be a suitable area for the construction of a wind power plant.