Abstract: A method for determining a charging price for an electric charging site includes receiving time tags and data obtained based on automated metering infrastructure (AMI) data for the electric charging site, and weather information for a service area of the electric charging site; clustering power consumption of the electric charging site with similar weather information and time tags; calculating a center of mass and a distribution confidence parameter for the clustered power consumption to obtain a look-up table; retrieving historical information of voltage VPCC and injection power Psite pairs that is measured at a point of common coupling (PCC) of the electric charging site; receiving weather forecast information for the service area of the electric charging site; and calculating a dynamic hosting capacity (DHC) curve and a price curve based on the center of mass and the distribution confidence parameter, the VPCC and Psite pairs, and the weather forecast information.