The subject of my research is the dynamic loads acting on structures in energy engineering as consequences of such natural phenomena as wind or ice shedding from the structure. The research considers vibration problems of conductors on overhead transmission lines, and the vibration of wind turbine blades. The methodology of research involves the construction of numerical and experimental models in order to understand the influence of these phenomena on the conductor, on the blade, and on other elements of the structure. This study is the basis for the development of methods that reduce the undesired effects of vibrations. The application of such methods contributes to avoiding that these dynamic effects reduce significantly the range of operation and lifetime of the structure.