energies Article Towards Renewable-Dominated Power Systems Considering Long-Term Uncertainties: Case Study of Las Palmas Miguel Cañas-Carretón 1,2 , Miguel Carrión 3,* and Florin Iov 4 1 Renewable Energy Research Institute, 02071 Albacete, Spain;
[email protected] 2 DIEEAC-ETSII-AB, UCLM, 02071 Albacete, Spain 3 Department of Electrical Engineering, Industrial and Aerospace Engineering School, UCLM, 45071 Toledo, Spain 4 Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark; fi@et.aau.dk * Correspondence:
[email protected]; Tel.: +34-925-268800 (ext. 5750) Abstract: In this paper, we analyze the generation, storage and transmission expansion of the isolated power system of Las Palmas (Spain) for 2050. This power system comprises two isolated systems: Lanzarote-Fuerteventura and Gran Canaria. The generating, storage and transmission capacity to be built is determined by solving a two-stage stochastic investment model taking into account different long-term uncertain parameters: investment costs of immature technologies of power production and storage, annual demand growth, number of electric vehicles, rooftop solar penetration and natural gas prices. The possibility of linking together the isolated power systems of Lanzarote-Fuerteventura and Gran Canaria for reaching a higher penetration of renewable units is also considered. The operation of the power system is simulated by considering the day-ahead energy and reserve capacity markets. The variability of the hourly available wind and solar power, and the demand level are modeled by Citation: Cañas-Carretón, M.; using a set of characteristic days to represent the target year. The performance of the resulting power Carrión, M.; Iov, F. Towards system is assessed by conducting an out-of-sample analysis using the AC model of the power system.