TITLE

Carbon footprints for the supply of electricity to a heat pump: Solar energy vs. electric grid

AUTHOR(S)
de Souza Grilo, Maria Mayara; de Souza, Raoni Pinheiro Gonzaga; Carvalho, Monica; Fortes, Anderson Felipe Chaves; Silva, Júlio Augusto Mendes
PUB. DATE
March 2018
SOURCE
Journal of Renewable & Sustainable Energy;Mar2018, Vol. 10 Issue 2, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The carbon footprint is one of the most commonly employed environmental indicators used to evaluate the environmental impacts associated with a process or a product. The energy sector is responsible for more greenhouse gas emissions than any other sector. This has raised concerns about the consequences of the high consumption of non-renewable resources and increased the search for renewable energy sources. Renewable energy sources, such as photovoltaic solar energy, enable diversification of the global energy system. In this study, a comparative environmental analysis was performed for a heat pump utilized for dehumidification and heating purposes. The carbon footprints associated with two different scenarios for the supply of electricity to a heat pump were calculated. The first scenario used electricity from the national electric grid (Brazilian electricity mix), and the second scenario used electricity from a photovoltaic solar energy system connected to the grid. Photovoltaic solar energy presented a considerable environmental advantage in comparison to the direct use of electricity from the grid, with a reduction of approximately −207.88 kg CO2-eq/year. The use of cleaner energy sources, such as photovoltaic solar energy, significantly contributes to a reduction of the carbon footprint, and herein a significant potential for the mitigation of climate change was demonstrated.
ACCESSION #
129439192

 

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