DIGDP-Artículos
URI permanente para esta colecciónhttps://hdl.handle.net/10953/239
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Examinando DIGDP-Artículos por Autor "Bogdanov, Dmitrii"
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Ítem Synergies of electrical and sectoral integration: Analysing geographical multi-node scenarios with sector coupling variations for a transition towards a fully renewables-based energy system(Elsevier, 2023-09-15) Osorio-Aravena, Juan Carlos; Aghahosseini, Arman; Bogdanov, Dmitrii; Caldera, Upeksha; Ghorbani, Narges; Mensah, Theophilus Nii Odai; Haas, Jannik; Muñoz-Cerón, Emilio; Breyer, ChristianThe cost-optimal pathway for moving from the current fossil-fuel based energy system to 100% renewables is still an open question. This work presents the first study that analyses the transition towards a 100% renewable energy system under different spatial resolutions (1-node, 6-nodes electrically isolated and interconnected) and various coupling configurations for the power, heat, transport and desalination sectors. With the LUT Energy System Transition Model for the case of Chile, 12 scenarios were investigated in an hourly resolution and considering more than one hundred energy-related technologies. The results show that: (1) 1-node systems deliver too simplistic results for key metrics; (2) power sector simulations can lead to a strongly distorted resources allocation compared to scenarios that include other sectors; (3) a multi-node model better reflects transmission bottlenecks and local resources, and; (4) the lowest-cost solution is reached when power transmission lines are considered. Thus, it is concluded that a cost-optimal, balanced, and realistic solution to reach a fully defossilised energy system is transitioning towards a multi-node, interconnected, and fully sector-coupled energy system. This can be called, in short, the ‘Power-to-X economy’, which in the case of Chile would more accurately be a ‘Solar-to-X economy’, given the high solar share found in the simulations.Ítem The impact of renewable energy and sector coupling on the pathway towards a sustainable energy system in Chile(Elsevier, 2021-11) Osorio-Aravena, Juan Carlos; Aghahosseini, Arman; Bogdanov, Dmitrii; Caldera, Upeksha; Ghorbani, Narges; Mensah, Theophilus Nii Odai; Khalili, Siavash; Muñoz-Cerón, Emilio; Breyer, ChristianThe aim of this research is to analyse the impact of renewable energy (RE) technologies and sector coupling via analysing the transition pathways towards a sustainable energy system in Chile. Four energy transition scenarios for the power, heat, transport and desalination sectors were assessed using the LUT Energy System Transition model. The current policy scenario was modelled and compared with three best policy scenarios. The results showed that the transition to a 100 % renewable-based energy system by 2050 is technically feasible. Further, such an energy system would be more cost-efficient than the current policy scenario to reach carbon neutrality by 2050. The results also indicate that Chile could reach carbon neutrality by 2030 and become a negative greenhouse gas emitter country by 2035. In a 100 % renewable-based energy system, solar photovoltaics (PV) would contribute 86 % of electricity generation, which would represent 83 % of the total final energy demand for the year 2050. This would imply the use of about 10 % of the available techno-economic RE potential of the country. Three vital elements (high level of renewable electrification across all sectors, flexibility and RE-based fuel production) and three key enablers (solar PV, interconnection and full sectoral integration) were identified in order to transition to a fully sustainable energy system. Chile could contribute to the global sustainable energy transition and advance to the global post-fossil fuels economy through the clean extraction of key raw materials and RE-based fuels and chemicals production.Ítem The role of solar PV, wind energy, and storage technologies in the transition toward a fully sustainable energy system in Chile by 2050 across power, heat, transport and desalination sectors(Aalborg University Open Publishing., 2020-06-24) Osorio-Aravena, Juan Carlos; Aghahosseini, Arman; Bogdanov, Dmitrii; Caldera, Upeksha; Muñoz-Cerón, Emilio; Breyer, ChristianRenewable energies will play a significant role in a sustainable energy system in order to match the goal under the Paris Agreement. However, to achieve the goal it will be necessary to find the best country pathway, with global repercussion. This study reveals that an energy system based on 100% renewable resources in Chile could be technically feasible and even more cost-efficient than the current system. The Chilean energy system transition would imply a high level of electrification across all sectors, direct and indirectly. Simulation results using the LUT Energy System Transition model show that the primary electricity demand would rise from 31.1 TWh to 231 TWh by 2050, which represent about 78% of the total primary energy demand. Renewable electricity will mainly come from solar PV and wind energy technologies. Solar PV and wind energy installed capacities across all sectors would increase from 1.1 GW and 0.8 GW in 2015 to 43.6 GW and 24.8 GW by 2050, respectively. In consequence, the levelised cost of energy will be reduced in about 25%. Moreover, the Chilean energy system in 2050 would emit zero greenhouse gases. Additionally, Chile would become a country free of energy imports.