Documents obtained by The Associated Press on Monday show Southern California Edison notified the Public Utilities Commission last week that the Unit 2 reactor could possibly be back in service by Nov. 18, and its sister Unit 3 by Dec. 31.
An Edison spokeswoman says the dates submitted to state power managers for planning could be changed.
The plant has been sidelined since January after a tube break in a steam generator released traces of radiation.
The dates do not represent a formal request to restart either reactor, which must be submitted to the Nuclear Regulatory Commission.
Edison says safety is its first concern.