https://iesoqa-public.sharepoint.com/Pages/News/Day_0_Advisory_Notices_Summary.aspx IESO Day 0 System Advisory Messages Fri, 10 Apr 2026 00:00 EST http://www.ieso.ca/SiteAssets/ieso-logo.gif http://www.ieso.ca en-us Copyright 2016 http://www.ieso.ca/sector-participants/rss-feeds/day-0-advisory-notices-summary/advisory-notice?cid=EEF58844-7339-471B-BB36-A1050ED923AF&rid=9691875 IESO Operating from Backup Control Centre Tue, 17 Mar 2026 00:47 EST 9691875 250105 3 IESO Operating from Backup Control Centre The IESO has transferred operating control from the Primary Control Centre to the Backup Control Centre as 18:00 EST. Alternate/backup MSAT, Iridium satellite and FAX numbers are to be used, Main contact phone numbers have not changed Sun, 01 Feb 2026 17:43 EST Thu, 30 Apr 2026 06:00 EST Sun, 01 Feb 2026 17:42 EST Tue, 17 Mar 2026 00:47 EST Alert