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Authors
Abstract(s)
Nos dias de hoje é imperativo utilizar as energias renováveis como fonte para a produção de electricidade.
A modalidade de produção através de autoconsumo e o baixo custo destes equipamentos veio criar um mercado de aplicação de painéis fotovoltaicos. Uma unidade de produção em autoconsumo desperdiça quase toda a produção diária pois, caso não existam baterias, quase toda a energia gerada é vendida à rede. De modo reverter esta situação propõe-se a instalação destes painéis, não nas casas de habitação, mas sim nos locais de trabalhos, ou seja, edifícios públicos/privados ou que alberguem serviços, onde a produção fotovoltaica coincide com o pico do diagrama de carga da instalação, diminuindo a quantidade de energia vendida à rede.
Acrescenta-se ainda que a descentralização da geração eléctrica, evita as perdas de energia durante o seu transporte e distribuição, reduz o número de grandes instalações eléctricas, contribuindo significativamente para o sucesso das metas acordadas na Conferência de Paris que pretendem abrandar o ritmo das alterações climáticas.
Em resumo, o presente trabalho tem como principal objectivo estudar e avaliar os impactos económicos e energéticos da instalação de painéis fotovoltaicos em edifícios públicos, tendo estes revelando-se bastante satisfatórios, não só a nível de energia produzida, com 377 MWh por ano, mas também a nível económico, apresentando uma TIR de 14,5 % com um Pay-Back de 8 anos.
Nowadays, it is imperative to use renewable energy as source for electricity production. Energy production by self-consumption and lower costs photovoltaic panels has created a market for an increase in distributed PV generation. A self-consumption unit wastes almost all-day production if it doesn’t match consumption and if there are no batteries in system. In this case, most part of the energy generated is sold to the public grid. To avoid this situation, these panels should be installed, not in habitation houses, but in people’s workplace, that is, public/private buildings, or harbor services, where photovoltaic production coincides with the load diagram peak of the building, reducing the amount of energy sold to the public grid. In addition, electricity generation decentralization avoids energy losses during transportation and distribution and reduces the number of large electrical plants, significantly contributing to the success of Paris Conference targets that are intended to slow down the climate changes. In summary, the main objective of this work is to study and evaluate the economic and energy impacts of photovoltaic panels installation in public buildings, which are proving to be quite satisfactory, not only at the level of energy produced, with 377 MWh per year, but also at an economic level, with a 14.5% IRR with an 8-year Pay-Back.
Nowadays, it is imperative to use renewable energy as source for electricity production. Energy production by self-consumption and lower costs photovoltaic panels has created a market for an increase in distributed PV generation. A self-consumption unit wastes almost all-day production if it doesn’t match consumption and if there are no batteries in system. In this case, most part of the energy generated is sold to the public grid. To avoid this situation, these panels should be installed, not in habitation houses, but in people’s workplace, that is, public/private buildings, or harbor services, where photovoltaic production coincides with the load diagram peak of the building, reducing the amount of energy sold to the public grid. In addition, electricity generation decentralization avoids energy losses during transportation and distribution and reduces the number of large electrical plants, significantly contributing to the success of Paris Conference targets that are intended to slow down the climate changes. In summary, the main objective of this work is to study and evaluate the economic and energy impacts of photovoltaic panels installation in public buildings, which are proving to be quite satisfactory, not only at the level of energy produced, with 377 MWh per year, but also at an economic level, with a 14.5% IRR with an 8-year Pay-Back.
Description
Trabalho final de mestrado para obtenção do grau de Mestre em Engenharia Electrotécnica – Ramo de Energia
Keywords
Energias renováveis Renewable energies Painéis fotovoltaicos Photovoltaic panels Autoconsumo Self-consumption Avaliação económica Economic evaluation
Citation
MONTEIRO, Ana Catarina Cavaco - Aplicação de painéis solares em edifícios públicos para autoconsumo fotovoltaico. Lisboa: Instituto Superior de Engenharia de Lisboa, 2018. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa