Browsing by Author "Ferraz, Daniela Alexandra Rocha"
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- Photovoltaic self-consumption and behaviour changes in electricity consumptionPublication . Ferraz, Daniela Alexandra Rocha; Marques, António Manuel CardosoSelf-consumption enables, through the decentralised generation of energy, to meet the consumption needs of the producer, decreasing the dependence of the grid and reducing the electricity bill. The residential photovoltaic (PV) self-consumption allows households to consume all the energy produced through their solar panels. This paradigm has been changed in the electricity generation mix, putting the households as producers, it is important to increase their energy awareness. The environmental and energy perception of prosumers (i.e. simultaneously producers and consumers) is expected to change with the transition to a more sustainable electricity generation. Also, their electricity consumption patterns change and will contribute to smooth the electricity load diagram. Thus, it is necessary to understand which are the main factors that stimulate this shift. Based on primary data collection through a survey to Portuguese prosumers, this work studies the changes in environmental behaviour and household’s electricity consumption, using Ordered Logit Regression (OLR) and Generalized Ordered Logit Model (GOLM) approaches. The results show that energy awareness of prosumers increases after PV self-consumption. These systems have the capacity to boost interest in energy, influence the family for energy-saving and increase knowledge about consumption. This effect is more pronounced when the PV installation is driven by environmental concerns. This impact is also positive for load shifting, as these environmental motivations are crucial for efficient energy management. Despite the consumption increase after self-consumption, this is shifted to follow the electricity generation and can be caused by the growing global electricity demand. Overall, it may be said that the prosumer’s role makes households more informed energy consumers, making a more efficient electricity consumption management.