Following the 2005 Kyoto protocol, developed countries made commitments to reduce the emission of greenhouse gases, mostly by integrating renewable energy technologies into their power production systems. It is a more challenging procedure for third world countries, including Lebanon, that have limited means and potential to achieve such goals. This paper assesses the status of renewable energy systems in developing countries, and concentrates on the solar photovoltaic energy production due to its abundant availability in these countries relatively to other clean energy production methods. Comparisons of developing countries׳ achievements and goals each according to their economical, political and social considerations are conducted. Projects ranging from small scale standalone systems such as microgrids and minigrids to large scale energy production stations will be presented by dividing the countries into categories that share similar constraints and limitations in the integration of such installations. Furthermore, the paper analyzes the state of energy generation based on photovoltaic systems in Lebanon in contrast to other developing countries.