Solar Microgrids in Rural India: A Case Study of Household Benefits

This study evaluates the benefits that rural households in India derive from dedicated solar microgrid service systems. A case study was conducted in Lakshmipura-Jharla, Rajasthan, a village in western India with significant potential for producing solar energy. In 2013, a private investor set up a solar microgrid in the village and distributed energy-efficient appliances. Its goal was to give poor households access to modern energy services. The study data were collected through a survey conducted among randomly selected households in the village. The survey found that such an electricity provision service had multidimensional benefits: flexible use of the energy service, more effective time allocation among women, more study time for students, improved indoor air quality, and safer public places. Given the initial unmet demand for modern energy in the village, technological interventions supported by policy has helped to expand consumption possibilities and new demand for services has emerged. The household-level frontier rebound effect is estimated to be more than 100%, reflecting a one-and-a-half times increase in the demand for illumination services among rural households. Frontier rebound effect estimates help quantify the benefits of solar microgrids and energy-efficient appliances for households in rural areas. The results of this study are consistent with existing literature that suggests that efficient appliances and access to electricity will increase the energy demand manifold and satisfy the growing and largely unmet demand for energy.本研究评估了印度农村家庭从专用太阳能微电网服务系统中获得的收益。研究团队在印度西部拉贾斯坦邦的拉克什米普拉-贾尔拉（Lakshmipura-Jharla）村庄开展案例研究，该地区具备可观的太阳能开发潜力。2013年，一名私人投资者在该村搭建了太阳能微电网系统，并分发了节能家电，其初衷是为贫困家庭提供现代能源服务。本研究的数据通过对该村随机抽取的家庭开展问卷调查收集得到。调查结果显示，这类供电服务具备多维度收益：能源使用更具灵活性、女性的时间分配更高效、学生拥有更多学习时长、室内空气质量得到改善，以及公共场合安全性提升。鉴于该村此前存在未被满足的现代能源需求，政策扶持下的技术干预助力拓展了消费选择，同时催生了新的服务需求。经估算，家庭层面的前沿回弹效应（frontier rebound effect）超过100%，这反映出农村家庭对照明服务的需求增长了1.5倍。前沿回弹效应的估算值有助于量化太阳能微电网与节能家电为农村家庭带来的收益。本研究结果与现有文献结论一致，即节能家电与电力接入可大幅提升能源需求，并能满足日益增长且长期未被充分满足的能源需求。