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Sector Participants > Calendars > Planned IT Outages

Planned IT Outages

All planned IT system outages are posted as soon as they are scheduled. Participants can view outage notification details for the same day, as well as outages planned in the future.


Participants can also view information about outages that occurred in the past 60 days by selecting Archive in the table below.

Planned Outages for 15 Dec 2018

Outage Times Systems Description
14:00 - 16:00 EST Online IESO Due to planned outage Online IESO will not be available. This includes the following actions:
  • create a Notice of Disagreement (NOD)
  • create a Meter Trouble Report
  • Manage Meter Installation
  • Manage My Information
  • Manage Participation
  • Manage Enrolment Requests
  • Manage System Access
  • Submit Prudential Support Information
  • Update Organization

This also includes the following Reliability Compliance Tool actions:
  • Address Compliance Gap
  • Maintain Standards Library
  • Perform IESO Self Certification
  • Report Potential Standards Violation (IESO)
  • Report Potential Standards Violation (MP)
  • Request MP Self Certifications

Future Outages

Outage Times Systems Description
December 18, 2018
10:00 - 13:05 EST IESO Reports Site Confidential Report publication will be delayed.

Public Report publication will be delayed.
09:30 - 09:45 EST IESO Portal Prudential Manager used to monitor and retrieve prudential information will be unavailable
12:00 - 12:20 EST Outage Coordination and Scheduling System (OCSS) - CROW Web Interface OCSS Web User Interface will be unavailable for outage submission and retrieval. OCSS Web Service will be unavailable for outage submission and retrieval.
December 17, 2018
10:20 - 10:25 EST IESO Portal Loss of access to the IESO Portal will impact the following applications:
  • Transmission Rights Auction (TRA) application will be unavailable
  • All on-line collaboration communities will be unavailable
  • Settlements Online Forms cannot be submitted or retrieved
  • Prudential Manager used to monitor and retrieve prudential information will be unavailable
10:15 - 10:25 EST Sandbox Portal

IESO Sandbox Portal and testing for the the following applications will be unavailable:

  • Transmission Rights Auction (TRA ) application
  • Settlements Online Forms
  • Metering (MVWeb)
  • Prudential Manager