This study was mandated by Gaznat and is an associated case study to the SWEET project “Sustainable and Resilient Energy for Switzerland” (SURE). It analyses the role of large-scale gas storage in the Swiss energy system taking into consideration the Swiss energy strategy and climate goals as well as the security of supply objectives within a quantitative model-based scenario framework. Related to largescale gas storages, the study particularly focuses on potentially new gas storage options for Switzerland, such as Lined Rock Cavern – LRC storages and Liquefied Natural Gas – LNG storages. In order to quantify long-term developments of the energy system of Switzerland and the role of gas storages specifically, the well-established Swiss TIMES Energy systems Model has been employed and complemented with a dedicated dynamic gas flow model of the Swiss gas grid using the FlexECO modelling framework.
