The Sunrise Powerlink Transmission project, which came online on June 18, 2012, will add approximately 800 megawatts of transmission capability to the Southern California electric grid. Originally conceived as a way to link the San Diego load pocket to renewable energy sources in Imperial County, the transmission capability added by this project will help this electric market meet the capacity shortage that resulted from the unplanned outage of the San Onofre nuclear generation station units 2 and 3 located near San Diego.