Building upon the analysis performed in 2016-2017 , an update of electricity generation costs and potentials for selected technologies was performed – namely photovoltaics (PV), wind power, and natural gas based generation with combined cycle plants, CHP and fuel cells. The findings will primarily be used by SFOE and the energy system modeling community in Switzerland (Joint Activity Scenario and Modeling). In addition to updated electricity generation costs, the new analysis includes cost-supply curves for roof-top PV modules based on the GIS-based roof area data from www.sonnendach.ch for today and 2035.