Layout design and research of new energy vehicle charging pile in Anhui Province Xiaoyuan Wang, Hongfei Wang, Xuefeng Ren, Wenbin Chen, Yi Chu, Xiang Guo, Junhao Jiang, Xin Qiu, Junqiang Shi and Chengshan Sun E3S Web Conf., 228 (2021) 01006 Published online: 13 January 2021 DOI: 10.1051/e3sconf/202122801006