Andrés Romero spent three months as a research fellow at the Giessen -Friedberg University of Applied Sciences during the current winter semester. He accepted an invitation from Prof. Dr. Ramzi Dib of the Department of Information Technology – Electrical Engineering – Mechatronics. The Friedberg professor is supervising the doctoral thesis of the young researcher, who was born in Bogotá, Colombia.

Romero studied electrical power engineering in his hometown and subsequently received a scholarship from the German Academic Exchange Service (DAAD), which enabled him to pursue a doctorate at the Universidad Nacional de San Juan in Argentina. Dib has been collaborating with the Instituto de Energía Eléctrica there since 2000. Together with his Argentinian colleague Prof. Humberto Zini, he is supervising Romero's dissertation.

In his dissertation, Andrés Romero addresses the modeling of consumption processes in electrical power grids. A number of variables must be considered for the planning and operation of such grids. These include, among other things, different types of consumers, which have varying effects on grid operation. The number of consumers of each type who require electricity at a given time is only known approximately. However, information about this is essential. Romero attempts to model this situation in his doctoral thesis. He uses "fuzzy logic"—a method in which a mathematical description usable in computer networks is derived from imprecise data.

During his research stay in Friedberg, Romero succeeded in further refining and successfully applying the solutions he had developed in Argentina.