Layout design and research of new energy vehicle charging pile in Anhui ProvinceXiaoyuan Wang, Hongfei Wang, Xuefeng Ren, Wenbin Chen, Yi Chu, Xiang Guo, Junhao Jiang, Xin Qiu, Junqiang Shi and Chengshan SunE3S Web Conf., 228 (2021) 01006DOI: https://doi.org/10.1051/e3sconf/202122801006