Gelonghui, May 23丨West High School (688334.SH) said on the investor interactive platform that a virtual power plant is an energy management system based on information and communication technology and software systems, participating in the scheduling and operation of the power grid. The company's main business is to provide inspection and testing services and other technical services in the electrical field. Among them, inspection and testing services cover electrical equipment in the transmission, transformation and distribution fields such as high voltage switches, insulators, lightning arresters, capacitors, transformers, reactors, power electronics equipment, low voltage appliances, etc. Other technical services include measurement services, certification services, and technical research and technical consulting. The company's business does not involve energy management systems.