The investigation was conducted to explore the opportunities of wind- and photovoltaic energy systems in Austria and People's Republic of China. In this study, a technical report about the state of the art of the mentioned technologies was made. Moreover, the Austrian and Chinese market opportunities were reviewed. Finally, four case studies were conducted, one for each technology and market. The paper is investigated by two methodologies. The first two parts are described by the means of a literature review. The third part is investigated via case studies. This thesis presents an exhaustive review of these research fields. The results reveal that in recent years the cost of wind- and photovoltaic systems dropped in Austria as well as China. However, the market review and the calculations of the case studies suggest that the Chinese market offers more opportunities than the Austrian market. It was found that if policy makers would like to push the technologies and the markets forward there is still some room for improvements in both countries investigated. Implications of the results and future research directions are also presented.