In recent years, there has been a strong interest in new approaches to wind generation, with particular attention to technologies able to be profitable in small scale and reduce the visual impact linked to traditional wind turbines. Because of their relative constructive simplicity, among the various proposals many are based on aeroelastic phenomena grouped under the name of Flow-induced Vibrations, which are oscillations generated by the interaction between fluid and elastic structures. However, although these phenomena have long been studied in some areas of engineering because of their destructive effects, their actual potential for energy conversion is much debated. In this context, the aim of the thesis is to investigate the characteristics and potentialities of these fluid-elastic interactions in energy production, focusing in particular on two phenomena: vortex-induced vibrations (VIV) and galloping.