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Swiss electricity generation is based on hydro and nuclear power, but current energy policy includes the nuclear phase-out by about 2035. This may lead to higher CO₂ emissions of the Swiss power supply due to domestic fossil power generation or electricity imports. For compliance with the Swiss CO₂ law, low carbon technologies such as renewable energies and Carbon Capture and Storage (CCS) gain importance. In order to support rational decision-making in this context, we compare various domestic and foreign renewable and non-renewable power supply options for Switzerland in 2035 based on environmental, economic, social and security of supply related indicators using multi-criteria decision analysis (MCDA). Our evaluation puts a focus on CCS technologies and uses (a) a novel approach that allows calculating the distribution of the MCDA results of all possible unique weighting profiles, and (b) two …