As the first professional CSI survey in on electric power supply enterprises .Da Tong, Shanxi, a CSI survey for this dissertation was undertaken.The CSI score, 73.5485, is found through data analysis.

• 本文结合上述供电企业顾客满意度测评体系；对大同地区的电力客户进行了满意度的调查和数据分析；得出了该地区顾客满意度为73.；5485。