Application of Multi-objective Optimization to a Long-term Design of Croatian National Energy System

Gašparović, Goran and Prebeg, Pero and Krajačić, Goran (2015) Application of Multi-objective Optimization to a Long-term Design of Croatian National Energy System. = Application of Multi-objective Optimization to a Long-term Design of Croatian National Energy System. In: 10th Conference on Sustainable Development of Energy, Water and Environment Systems, SDEWES Conference, Dubrovnik 2015, 27.09.-02.10.2015., Hrvatska.

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Abstract

This paper presents results of an ongoing research effort with the goal of investigating the possibility of improving of the planning of the supply side of energy system with a high share of Renewable Energy Sources (RES). The problem consists in identifying appropriate generating and storage technologies and their sizing for a long-term scenario of twenty years or more. Due to the stochastic nature of RES, it is necessary to integrate expensive storage capacities into an energy system with a high share of RES and to model appropriate energy market. While all energy carriers are considered, only the electricity carrier is modelled in this study, with notion taken for the heating demand. There are provisions for additional energy carriers, which are not used at this moment. A two-level approach in which multi-objective optimization was used on the global level to design a complex Croatian Energy System (CES), where electric vehicles (EVs) are integrated to serve as battery storage in Vehicle-to-Grid (V2G) mode for a scenario between 2015 and 2050. In addition, case study includes nine aggregated hydro power plants, one for each river basin in Croatia. Also, case study includes solar and wind power plants modelled for six locations in Croatia: Osijek, Zagreb, Rijeka, Šibenik, Split and Dubrovnik. The resulting Pareto front suggests that certain level of conventional energy sources will have to remain in the energy system to take into the account unfavourable weather conditions and to cover heating demand, which also results in significantly lower load factors for those power plants. Also, variants with more RES share have lower total energy system load factor and significantly higher installed capacity.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): renewable energy sources, electrical vehicles, vehicle to grid, long term design of energy system, multiobjective optimization
Subjects: SOCIAL SCIENCES > Information and communication sciences
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 14 Apr 2016 10:51
Last Modified: 04 Sep 2017 11:09
URI: http://repozitorij.fsb.hr/id/eprint/5631

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