The main idea of this paper is to develop an intelligent decision support system for decision support of green energy producers, anxious to participate to liberalized energy market. The international and national context is very favorable for the problematic discussed. It is represented by the new European Union strategies who promote: the green technologies and the methods for their integration into existing power systems. To valorize this context, we propose an intelligent decision support system that integrates a fuzzy logic controller and an expert systems and is able to give alternatives for action, through a specialized interface, to prosumers. The information provided by using advanced control algorithms will improve the information flow and will optimize the decisional process.