In electric market , one of the basic functions of the grid is to provide the services credible and high quality service un - discriminatorily , and take in the charge of the services , for example , the charge of using the grid , the charge of the dispatching service and the charge of exchange service 电力市场下,电网企业的基本职能是以独立的第三方身份无歧视地为发电与用电方提供可靠优质的输配电服务,并收取相应的服务费,如网络使用费、调度服务费和交易服务费。