A scenario analysis for an optimal RES integration into the European transmission grid up to 2050

This paper describes the results of a study, carried out in the framework of the EU research project SUSPLAN and aimed at assessing how the EU Electricity Transmission Network should be upgraded so as to allow integrating the maximum share of renewable energy sources (RES) in Europe within the timeframe 2030-2050. The investigation, carried out by developing and running a model of the whole European power system, is focused on assessing optimal electricity transmission network expansions of the trans-national corridors between the European countries, so as to ensure security of electricity supply while keeping into account the impact on electricity production costs and CO
₂
emissions. In particular, we compared the outcome of the four benchmark scenarios of the SUSPLAN
¹
project. These scenarios are differentiated on the basis of two drivers: public acceptance and technological development. The reference years considered in the study are 2030, 2040 and 2050. In the following, the methodology, the assumptions and the results of the study will be reported.