Electric charge diagnosis system and method

The invention discloses an electric charge diagnosis system and method. The electric charge diagnosis system comprises a system parameter setting module, an electric charge simulation trial module, an abnormal electricity utilization inquiring module, an abnormal electricity utilization automatic notice module and an electricity utilization data statistical analysis module. The electric charge diagnosis method comprises the following steps: calculating the optimum contractual capacity by utilizing collected historical electricity utilization information and historical electricity consumption data; providing the optimum electric charge, and comparing with the historical electricity utilization charge; furthermore, estimating an optimum electricity utilization scheme, and then applying for regulating electricity utilization contractual capacity from an electric power company, thereby reaching the aim of saving electric charge expenditure; and meanwhile, utilizing abnormal electricity utilization inquiring modul