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Advisor(s)
Abstract(s)
Numa época marcada pelas alterações climáticas, mas também por uma maior
consciência ambiental, a melhoria da eficiência energética é essencial para minimizar os
impactos ambientais e reduzir emissões de dióxido de carbono (CO2) provocados pela
utilização excessiva de energia. Por isso a poupança energética tem sido um dos eixos
prioritários das políticas públicas de diversos Estados, que têm tomado medidas que
procuram limitar as emissões poluentes e incrementar o recurso a energias endógenas.
Com a crescente procura de energia, a atividade das empresas prestadoras de serviços
energéticos (ESCO) é decisiva no novo paradigma energético, elaborando planos de
eficiência energética, assumindo risco e o investimento financeiro necessário para
garantir os resultados ao nível da poupança de energia eléctrica. O surgimento deste
tipo de empresas foi um marco na nova forma de gestão energética de edifícios.
Com base na atividade das ESCO na implementação de contratos de desempenho, é
essencial estudar as diferentes variáveis que influenciam o consumo energético do
espaço em análise. Das condições climatéricas e envolventes do edifício aos hábitos
comportamentais dos seus ocupantes, passando pelas mais recentes evoluções
tecnológicas nos equipamentos do sector, importa analisar, cuidadosamente, essas
variáveis e qualificar o seu peso no consumo energético desse espaço.
A presente dissertação tem por finalidade otimizar um “indicador de perfil energético”
que é parte integrante de um contrato de desempenho energético (EPC). Por análise de
uma série de dados recolhidos através da monitorização dos consumos de energia de
uma organização, e juntamente com as faturas energéticas pertencentes à mesma, vão
ser definidas as variáveis dependentes e independentes de um EPC e apresentadas
soluções/medidas a implementar no terreno e que melhorem o desempenho energético
do edifício. A solução ideal será obtida assim que, após se qualificar as variáveis, se consiga aproximar a evolução do indicador de perfil energético com a do consumo
energético real, tendo como base os casos de estudo que serão entretanto
apresentados.
A otimização desta ferramenta será bastante proveitosa para as análises e realização de
futuros EPC por parte da empresa desenvolvedora deste indicador, levando a que os
possíveis clientes, e destinatários, destes serviços obtenham uma maior poupança
energética, não alterando, no entanto, as condições de conforto dos seus ocupantes
e/ou a finalidade da instalação.
In a time of climate change, but also of greater environmental awareness, the improvement of energy efficiency is essential to minimise the environmental impacts and to reduce carbon dioxide (CO2) emissions caused by the excessive use of energy. Therefore, energy saving has been one of the priority axes of the public policies from the different States, that have taken measures which seek to limit pollutant emissions and to increase the use of endogenous energies. With the growing demand for energy, the activity of the energy service companies (ESCO) is decisive in the new energy paradigm, making plans of energy efficiency, assuming the risk and the financial investment needed for ensuring the results in terms of energy savings. The emergence of such companies was a milestone in the new form of energy management of buildings. Based on the activity of the ESCO in the implementation of performance contacts, it’s essential to study the different variables which determine the energy consumption of the space under consideration. From the weather conditions, to the surroundings of the buildings, to the behaviour habits of their inhabitants, to the most recent technological evolutions on the equipment of the sector, it is important to carefully analyse such variables and to evaluate their weight in the energy consumption of such space. The purpose of this thesis is to optimise an “energy profile indicator”, which is an integral part of an energy performance contract (EPC). By analysing a series of data collected by monitoring the energy consumptions of an organization, and together with the energy bills of such organisation, the dependent and independent variables of one EPC will be defined and will be presented the solutions/measures to be implemented on the ground, and improve the energy performance of the building. The ideal solution will be achieved as soon as, after the evaluation of the variables, we can align the evolution of the energy profile indicator with the actual energy consumption, having as basis the case studies that will be presented in the meantime. The optimisation of this tool will be very useful for the analysis and implementation of future EPC by the developer of this indicator, making that possible customers, and beneficiaries, from these services get a greater energy saving, without changing, however, the conditions of comfort of its occupants and/or the final purpose of the installation.
In a time of climate change, but also of greater environmental awareness, the improvement of energy efficiency is essential to minimise the environmental impacts and to reduce carbon dioxide (CO2) emissions caused by the excessive use of energy. Therefore, energy saving has been one of the priority axes of the public policies from the different States, that have taken measures which seek to limit pollutant emissions and to increase the use of endogenous energies. With the growing demand for energy, the activity of the energy service companies (ESCO) is decisive in the new energy paradigm, making plans of energy efficiency, assuming the risk and the financial investment needed for ensuring the results in terms of energy savings. The emergence of such companies was a milestone in the new form of energy management of buildings. Based on the activity of the ESCO in the implementation of performance contacts, it’s essential to study the different variables which determine the energy consumption of the space under consideration. From the weather conditions, to the surroundings of the buildings, to the behaviour habits of their inhabitants, to the most recent technological evolutions on the equipment of the sector, it is important to carefully analyse such variables and to evaluate their weight in the energy consumption of such space. The purpose of this thesis is to optimise an “energy profile indicator”, which is an integral part of an energy performance contract (EPC). By analysing a series of data collected by monitoring the energy consumptions of an organization, and together with the energy bills of such organisation, the dependent and independent variables of one EPC will be defined and will be presented the solutions/measures to be implemented on the ground, and improve the energy performance of the building. The ideal solution will be achieved as soon as, after the evaluation of the variables, we can align the evolution of the energy profile indicator with the actual energy consumption, having as basis the case studies that will be presented in the meantime. The optimisation of this tool will be very useful for the analysis and implementation of future EPC by the developer of this indicator, making that possible customers, and beneficiaries, from these services get a greater energy saving, without changing, however, the conditions of comfort of its occupants and/or the final purpose of the installation.
Description
Keywords
Eficiência Energética ESCO EPC Variáveis Indicador de Perfil Energético Investimento Energy Efficiency ESCO EPC Variables Energy Profile Indicator Investment