Alert, warning and emergency notices

Emergency notices are issued when operating reserves or transmission capacity limitations threaten the ability of the California ISO to safely and reliably operate the grid. All notices should be confirmed with the appropriate operating personnel prior to taking any action. 

Go to our Notification sign-ups page to find out how to sign up to receive alert, warning and emergency notices.

Grid history and facts

{1} ##LOC[OK]## {1} ##LOC[OK]## ##LOC[Cancel]## {1} ##LOC[OK]## ##LOC[Cancel]## Loading Data... California ISO Peak Load History - 1998 through 20162/27/2017 10:03 Emergency Fact Sheet1/09/2017 13:05 Grid History - 1998 to Present6/27/2017 09:09 Rename Group View/Edit Properties View Impact Add Existing Group/Document New Group New Page Link Remove Group Undo Changes Copy Item Paste Paste as Child Paste Above Paste Below Move Move as Child Move Above Move Below Update Document Title View/Edit Properties View Impact Remove Document Delete Document Undo Changes Copy Item Paste Paste as Child Paste Above Paste Below Move Move as Child Move Above Move Below View Impact View/Edit Properties View Impact Remove Page Link Create a copy Delete