Southern California Edison's San Onofre nuclear power plant has been down since January 31, but the damaged reactors may restart by the end of the year, the operator has told press. The loss has affected 1.4 million homes as well as voltage support to the transmission system, causing some experts to question the stability of Southern Californian infrastructure. Tentative dates for repower are Nov. 18 for the Unit 2 reactor and Dec. 31 for Unit 3.