Optimum route of the south transcontinental gas pipeline in SE Europe using AHP

The development of a south energy corridor connecting Europe with the natural gas reserves of the broader Caspian Region and Middle East aims at increasing the EU security and diversification of energy supply. In this paper, the analytic hierarchy process (AHP) method with geopolitical, economic and technical criteria is applied to define the most preferred route of the transcontinental gas pipeline that branches in SE Europe to transport Caspian gas further into the targeted markets of Europe. The paper is divided into five sections. The first introduces the purpose of the paper. The second describes the used AHP method in detail (criteria, sub-criteria, weights, consistency indexes). The third briefly addresses the need of EU to diversify its supply sources and the planned gas projects in SE Europe. In the fourth section, the method is applied to the four alternative pipeline routes and the robustness of the results is examined with sensitivity analysis. The fifth section comments on the results of the method.