High Quality Content by WIKIPEDIA articles! Generic Substation Events (GSE) is a control model defined as per IEC 61850 which provides a fast and reliable mechanism of transferring event data over entire substation networks. When implemented, this model ensures the same event message is received by multiple physical devices using multicast / broadcast services. The GSE control model is further subdivided into GOOSE (Generic Object Oriented Substation Events) and GSSE (Generic Substation State Events).