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Broadly, energy poverty is defined as insufficient energy access. One often missed sign of energy poverty is an inability to maintain a safe and comfortable indoor temperature. We add to the literature by quantifying the cooling slope gap (i. e. , amount of electricity households forgo over the cooling season). We first map a household's electricity consumption across outdoor temperatures using a five-parameter regression model. Next, we identify the household's cooling slope as how much additional electricity they consume per 1 °F increase in outdoor temperature once they start using their air conditioning systems. Using these slopes, we quantify the cooling slope gap in our study region (Arizona). We find that households making less than 15, 000 limit their electricity consumption for cooling by 1. 03 kWh per 1 °F increase compared to high-income households. For households with the same air conditioning count and efficiency, the cooling slope gap is 0. 52 kWh/°F on average, with a maximum of 0. 84 kWh/°F. This implies that these households are continuously using coping strategies throughout the cooling season to reduce financial energy poverty but may be putting themselves a heat-illness risk. This finding helps energy poverty mitigation efforts by identifying who is potentially experiencing financial instability or lacks cooling infrastructure.
Kwon et al. (Mon,) studied this question.