This study analyzes the various regulatory state promotions (i.e. governmental programs) and marketing (governmental and non-governmental) programs for grid connected PV systems worldwide in the context of the demand factors and supply factors.. The final mission of this study is to analyze the effect of these programs in terms of "Market transformation“ in reference to the process towards a self sustainable market. This study also serves to document the largest and most influential PV promotion programs and extract crucial success factors to help design new strategies.