4.5 Article

Evaluation of Home Energy Efficiency Improvements in a Hot Desert Climate in Northwestern Mexico: The Energy Saving vs. Money Saving Conflict

Journal

ENERGIES
Volume 14, Issue 23, Pages -

Publisher

MDPI
DOI: 10.3390/en14237909

Keywords

household energy consumption; rebound effect; energy efficiency; renewable generation

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Reducing household energy consumption is crucial for decreasing fossil fuel use and greenhouse gas emissions, but some technologies do not have the expected impact. Homes without improvements had lower electricity consumption as users were solely responsible for electronic device operations, while energy conservation strategies led to lower energy bills but higher overall energy consumption.
Reducing household energy consumption is one of the most important strategies used to decrease fossil fuel consumption and greenhouse gases emissions, and to encourage renewable energy utilization. Most energy conservation strategies in the domestic sector are aimed at preferential loans, i.e., purchasing renewable electricity or to improve the efficiency of home appliances, such as air conditioning and lighting. However, despite the relative economic successes of these technologies, they have not had expected impacts in regard to energy consumption. In this work, the authors analyzed the consumption patterns of two equivalent households-one was adapted with improved thermal insulation and a 1.2 kW photovoltaic system to reduce consumption from the electrical grid. The results show that dwellings where no improvements were made registered lower electric energy consumption, due the fact that users were aware that no strategy had been implemented, and its consumption; hence, electricity payments depended solely on one's attention over the electronic device operations. On the other hand, energy conservation strategies in households promotes confident and relaxed attitudes toward the use of energy, leading to lower energy billings, but a higher gross energy consumption.

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