Estimation of development of electricity end-use by the residential sector in Brazil by geographic region

Abstract The study estimates the structure of end-use electricity consumption by residential sector in the years 2005 and 2019, segregated by eachBrazilian geographic region. The method used data from the survey of Household Appliances and Consumption Habits from the years2004-2006 and 2018-2019 and applied statistical techniques. The results showedregional singularities in thedevelopment of the consumption structure. The maindevelopments in the estimated structure between the years 2005 and 2019 wereanincrease in the end-use consumption in the Environmental Comfort Appliances category, and the continued high participation of the consumption of theFood Conservation category. There was a decrease in the share of WaterHeating category end-use consumption in all regions, except in the South. The studyalsoshowed a predominance of end-use consumption ofappliances in the Environmental Comfort, Heating Water and Food Conservation categories, ranging from 82% to 91% according to the different regions. The findings indicate high potential for implementing energy efficiency measures, however, it must be stressed that regional consumption patterns must be considered in order to achieve effective results.

摘要
本研究针对巴西各地理区域，分别估算了2005年与2019年的居民部门终端用电消费结构。本研究采用2004-2006年及2018-2019年的《家用电器与消费习惯调查（Household Appliances and Consumption Habits）》数据，并运用统计分析技术。研究结果显示，居民用电消费结构的发展演化呈现出区域异质性特征。2005年至2019年间，估算得到的消费结构主要变化为：环境舒适类家电（Environmental Comfort Appliances）终端用电消费量有所提升，而食品保鲜类家电（Food Conservation）用电消费占比持续处于高位。除巴西南部地区外，其余所有区域的热水供应类家电（Water Heating）终端用电消费占比均出现下降。本研究同时显示，环境舒适类、热水供应类与食品保鲜类家电的终端用电消费占主导地位，各区域该类消费占比介于82%至91%之间。研究结果表明，当地具备推行节能措施的巨大潜力，但需强调的是，若要取得切实成效，必须考虑各区域的用电消费模式差异。