**5. Conclusions**

As a conclusion of this survey, I would like to once again encourage readers to take up challenges and undertake research in the field of broadly understood wind energy. We can see that this theme applies not only to technical and engineering sciences, but also to natural sciences, humanities, medical, social, agricultural, economic, and possibly even art. What will be the future of wind energy development and its share in global energy production? One possible answer to this question can be found in an article published in the journal *Science* [29]. However, experience shows that simple trend extrapolation does not always produce correct results. Apart from the enthusiastic development of diverse renewable energy technologies, there are also questions. I recently received a challenge to include a bold estimation of the ratio of all energy invested in wind turbines to all energy gained from wind turbines so far worldwide. I do not know a simple answer to this question and possibly someone from the younger generation of scientists will create an appropriate model and be able to estimate this parameter with acceptable uncertainty.

Wind energy is one of the areas of renewable energy; however, it is important to realize that there are no perfect, unlimited sources of usable energy. Contemporary energy based on solar nuclear fusion, i.e., wind energy, hydropower, and photovoltaic, are not a panacea for the risks associated with traditional energy based on raw materials [30,31]. In addition to the development and improvement of renewable energy sources, an equally important issue is to prevent unnecessary dissipation of utility energy. Let us remember this and consciously use the available energy by treating it not as a commodity but as a common good.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The author declare no conflict of interest.
