Energy consumption from fossil fuels is constantly increasing. As a consequence, the emissions of greenhouse gases are particularly rising. The always growing interest of governments and the scientific community for global warming, mainly caused by the increase of greenhouse gases concentration in the atmosphere, requires capable tools to provide a precise accounting of energy consumption. Total Embodied Energy Supply is an index that takes into account the energy consumed directly and indirectly (also called “embodied energy”) by every country. The Multi Regional Input-Output Model was used to evaluate this index. The aim of this thesis is the formalization of a model which allows to evaluate the factors that caused the change over time in energy consumption of every economy. Unlike the models developed in literature, the proposed model can account to what extent each country is responsible for these changes and to what extent the other energy-exporting countries are. The proposed model, applied to the Italian economic system, shows how imported and consumed energy in Italy is lower than energy produced and consumed in Italy. On the other hand, further studies are needed to improve the model.
Il consumo di energia da fonti fossili è in continuo aumento e di conseguenza l’emissione di gas a effetto serra. Visto il sempre maggiore interesse dei governi e della comunità scientifica al tema del riscaldamento globale, causato principalmente dall’aumento della presenza dei gas a effetto serra in atmosfera, sono necessari strumenti che forniscano una precisa contabilità dei consumi energetici. Il Total Embodied Energy Supply è un indice che tiene in considerazione l’energia diretta e indiretta consumata da ogni paese (chiamata energia “embodied”). Per valutare questo indice è stato utilizzato il modello Input-Output Multi Regionale di Leontief. Obiettivo di questa tesi è la formalizzazione di un modello che consenta di valutare i fattori che hanno causato la variazione dell’energia consumata dalle varie economie. Diversamente dai modelli presenti in letteratura, il modello proposto permette di valutare in che misura queste variazioni siano di responsabilità di ogni singolo paese e in che misura la responsabilità ricada invece sugli altri paesi da cui questa energia viene importata. Il modello proposto, applicato al sistema economico italiano, mostra come l’energia “importata” e consumata in Italia sia inferiore rispetto all’energia prodotta e consumata in Italia. Si rendono necessari, d’altra parte, ulteriori studi per perfezionare il modello.
Structural decomposition analysis applicata ai consumi energetici dell'economia italiana
NOVA, STEFANO CARLO MARIA
2016/2017
Abstract
Energy consumption from fossil fuels is constantly increasing. As a consequence, the emissions of greenhouse gases are particularly rising. The always growing interest of governments and the scientific community for global warming, mainly caused by the increase of greenhouse gases concentration in the atmosphere, requires capable tools to provide a precise accounting of energy consumption. Total Embodied Energy Supply is an index that takes into account the energy consumed directly and indirectly (also called “embodied energy”) by every country. The Multi Regional Input-Output Model was used to evaluate this index. The aim of this thesis is the formalization of a model which allows to evaluate the factors that caused the change over time in energy consumption of every economy. Unlike the models developed in literature, the proposed model can account to what extent each country is responsible for these changes and to what extent the other energy-exporting countries are. The proposed model, applied to the Italian economic system, shows how imported and consumed energy in Italy is lower than energy produced and consumed in Italy. On the other hand, further studies are needed to improve the model.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/135355