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Abstract(s)
Uma análise exaustiva do autoconsumo no setor residencial em Portugal. Após a publicação do decreto-lei 153/2014, de 20 de Outubro de 2014, o autoconsumo surgiu na legislação portuguesa como uma alternativa de obtenção de energia para o setor residencial. A possibilidade de minorar os valores de energia adquiridos ao comercializador e de injetar na rede os excedentes de energia vai de encontro com as expectativas, mas será que, considerando os custos de instalação, as condições de exploração e os valores das tarifas de remuneração é possível implementar um sistema de produção rentável?
A presente dissertação tem como objetivo escrutinar os aspetos legais, técnicos e financeiros dos sistemas de produção para autoconsumo e mostrar qual o caminho a seguir para tirar o maior proveito desta alternativa.
Do trabalho desenvolvido conclui-se que o foco nas instalações de produção fotovoltaico deve ser perpetuado, sendo a solução que apresenta maiores vantagens para o consumidor.
Da análise do mercado e da forma como se carateriza o consumo de energia elétrica ao nível residencial em Portugal, concluiu-se que um valor ótimo para a potência de um sistema de produção para autoconsumo fotovoltaico estará entre os 24 % e os 43 % da potência contratada da habitação, obtendo-se assim melhorias na eficiência energética da habitação e no valor da fatura da eletricidade.
An exhaustive analysis of self-consumption in the residential sector in Portugal. After the publication of Decree-Law 153/2014 of 20 October 2014, the self-consumption emerged in Portuguese legislation as an alternative to obtain energy for the residential sector. The ability to reduce the energy values obtained from the supplier and to inject in the network the energy surplus meets with expectations, but considering the costs of installation, operating conditions and amounts of remuneration rates, is it possible to implement a cost effective production system? This thesis aims to scrutinize the legal, technical and financial aspects of production systems for self-consumption and to show what path to follow to make the most of this alternative. From the work developed it was concluded that focusing on photovoltaic production facilities must be perpetuated, and that this solution has the major advantages for the consumer. From a market analysis and from how the consumption of electricity to residential level is characterized in Portugal, it was concluded that the best values for the power of a photovoltaic production system for self-consumption are be between 24% and 43% of the dwelling’s contracted power, which allow consumers to obtain improvements in their home’s energy efficiency and in the electricity invoice amount.
An exhaustive analysis of self-consumption in the residential sector in Portugal. After the publication of Decree-Law 153/2014 of 20 October 2014, the self-consumption emerged in Portuguese legislation as an alternative to obtain energy for the residential sector. The ability to reduce the energy values obtained from the supplier and to inject in the network the energy surplus meets with expectations, but considering the costs of installation, operating conditions and amounts of remuneration rates, is it possible to implement a cost effective production system? This thesis aims to scrutinize the legal, technical and financial aspects of production systems for self-consumption and to show what path to follow to make the most of this alternative. From the work developed it was concluded that focusing on photovoltaic production facilities must be perpetuated, and that this solution has the major advantages for the consumer. From a market analysis and from how the consumption of electricity to residential level is characterized in Portugal, it was concluded that the best values for the power of a photovoltaic production system for self-consumption are be between 24% and 43% of the dwelling’s contracted power, which allow consumers to obtain improvements in their home’s energy efficiency and in the electricity invoice amount.
Description
Keywords
Autoconsumo Autoprodução Decreto-Lei Energia Fotovoltaico Tarifas Energy Law Photovoltaic Rates Self-consumption Self-production