The IESS, 2047 has been developed expressly as an energy scenario building tool. The guiding ambition of this is to develop energy pathways leading up to the year 2047, comprising of likely energy demand and supply scenarios. The tool has been so developed, that it can create hundreds of scenarios with different combinations of levels/efficiencies of energy demand and supply sectors. Since the Excel model in the IESS, 2047 has the capability to aggregate both the energy demand and supply choices of the user, it is a handy tool to suggest measures to shift the energy pattern in such a way, that the country’s energy security considerations are advanced.