The growing economic development of the world countries and high demand for energy resources as a main driver of modern society tempts states and businesses to provide urban and rural areas with these resources. Energy resources involved in many essential life processes of modern human being. Starting from electricity that humanity us on a daily basis and ending with fuel types that is used transportations energy resources are used in all fields of our life. This is well known fact that as much as energy resources are important in our life still they are the main causes for pollution of environment and climatic changes and cataclysms. Moreover, the depletion of energy resources that are not renewable tends to make them scarce and costly and people start to think how to cope with this global problem. The idea of this research is to investigate the current situation in the world countries according energy resources and how alternative energy resources are applied by countries, which policies are implemented. The research is based on applying Alternative Energy sources in our world and why modern world needs it. In this topic, the role of oil in modern society, what are advantages of using renewable energy sources and which states are use more green energy and which less was discussed. For the research quantitative and qualitative data was used. For collecting this data secondary data information has been collected. The information that used in research is taken from several main sources like books, articles, publications, news portals and electro-news portal.  Also, some criteria as actuality, quality, credibility, accuracy of information; reliability of sources were applied when searching any information. After gathering all information, prediction was made about how it would develop in the future. After, the investigation moved to the cases of different countries with various stages of development. There were reviewed which alternative energy they use and the percentage of usage of it. States as Azerbaijan, Sweden, USA, Israel, India, Japan and China were considered. The graphs, charts, statistics, wanted to raise public awareness and show these simple but high-priority questions. In the paper the importance of switching to alternative energy and which states have already begun to save their country and the planet as a whole were described. At last, all points were summarized and references for the deep exploring were added.