Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Life Cycle Assessment of Electricity Systems
Electricity systems represent a major source of global pollutants. Whilst currently relying heavily on fossil fuels, electricity systems are progressively shifting towards renewable sources to mitigate climate change and enhance energy security. The goal of this PhD project was to develop a systematic framework for the life cycle assessment (LCA) of electricity systems, which aimed at providing: •Scientifically sound recommendations for decision-making processes, leading to more sustainable energy systems; •Accurate and transparent LCA data for electricity supply, thereby increasing the robustness of LCA results for a multitude of products producing or consuming electricity throughout the lifecycle. The main findings in relation to: (i) electricity generation, (ii) power transmission and distribution and (iii) low-carbon electricity systems are reported in the following paragraphs. A great deal of variability was found in the literature regarding LCA of electricity generation in terms of modelling methodology and power plant characteristics, both of which strongly affected the results of the LCA. Major issues for individual electricity generation technologies were identified and discussed. For example, electricity used during the manufacturing of the power plant, reference year and data collection approach (process-chain or input-output analysis) strongly affected the impacts of hydro, wind and solar power. This information needs to be documented, to ensure comparability between studies. Based on information gathered from the literature, typical emission factor ranges for each technology were provided. Results showed that emission factors per unit of energy input should be used for thermal conversion processes (as opposed to emission factors per unit of electricity produced), as the efficiency may vary depending on the operation of the plant within the power system. The choice of LCA approach used to solve multi-functionality for combined heat and power plants strongly influenced how the environmental impact of ...
Life Cycle Assessment of Electricity Systems
Electricity systems represent a major source of global pollutants. Whilst currently relying heavily on fossil fuels, electricity systems are progressively shifting towards renewable sources to mitigate climate change and enhance energy security. The goal of this PhD project was to develop a systematic framework for the life cycle assessment (LCA) of electricity systems, which aimed at providing: •Scientifically sound recommendations for decision-making processes, leading to more sustainable energy systems; •Accurate and transparent LCA data for electricity supply, thereby increasing the robustness of LCA results for a multitude of products producing or consuming electricity throughout the lifecycle. The main findings in relation to: (i) electricity generation, (ii) power transmission and distribution and (iii) low-carbon electricity systems are reported in the following paragraphs. A great deal of variability was found in the literature regarding LCA of electricity generation in terms of modelling methodology and power plant characteristics, both of which strongly affected the results of the LCA. Major issues for individual electricity generation technologies were identified and discussed. For example, electricity used during the manufacturing of the power plant, reference year and data collection approach (process-chain or input-output analysis) strongly affected the impacts of hydro, wind and solar power. This information needs to be documented, to ensure comparability between studies. Based on information gathered from the literature, typical emission factor ranges for each technology were provided. Results showed that emission factors per unit of energy input should be used for thermal conversion processes (as opposed to emission factors per unit of electricity produced), as the efficiency may vary depending on the operation of the plant within the power system. The choice of LCA approach used to solve multi-functionality for combined heat and power plants strongly influenced how the environmental impact of ...
Life Cycle Assessment of Electricity Systems
Turconi, Roberto (Autor:in)
01.01.2014
Turconi , R 2014 , Life Cycle Assessment of Electricity Systems . DTU Environment , Kgs. Lyngby .
Buch
Elektronische Ressource
Englisch
/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy , SDG 7 - Affordable and Clean Energy , /dk/atira/pure/sustainabledevelopmentgoals/life_on_land , SDG 15 - Life on Land , /dk/atira/pure/sustainabledevelopmentgoals/climate_action , /dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production , SDG 13 - Climate Action , SDG 12 - Responsible Consumption and Production
DDC:
690
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