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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 19 Aug 2019

Outage Times Systems Description
There are no scheduled outages.

Future Outages

Outage Times Systems Description
August 20, 2019
08:00 - 16:00 EST Sandbox IESO Reports Site Testing on the Sandbox Report site will be unavailable
August 22, 2019
08:00 - 16:00 EST Sandbox Dispatch Service Automated dispatch instructions sent via Dispatch Service will be unavailable. The IESO will manually dispatch by phone as necessary. The Dispatch Service Web UI users may get disconnected and will need to login and verify connected after the outage.
08:00 - 16:00 EST Sandbox Online IESO Due to planned outage Sandbox Online IESO will not be available. This includes the following actions:
  • Registration Automation System – Manage organization registration and participant authorization, Facility registration and Meter Installation processes.
  • Notice of Disagreement (NOD) – Manage the process with participants related to settlement and invoicing concerns.
  • Meter Trouble Report (MTR) -  Manages the process related to correcting revenue meter errors.
  • Meter Data Management (MDM) – Manage meter data report profiles and submit ad-hoc meter data requests.
  • Prudential System - Submit Prudential Support Information.
  • Demand Response Auction – Submit Capacity Qualification and Demand Response Auction Offer.
  • Reliability Compliance Tool - Manage the process of collecting submittals from participants related to NERC reliability standards.
  • Enable Capacity Export – Give the market participant the ability to sell excess capacity to neighboring jurisdictions.
  • Online Settlement Forms -  Collect market participant data required to settle the market.
  • CDM Plan and Measures - Used by LDCs and IESO to collaborate on changes to the LDC CDM Plans.
  • Retrofit - Manage Conservation Retrofit program and Restful API to interact with Retrofit program.
08:00 - 16:00 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
August 21, 2019
08:00 - 16:00 EST Sandbox Dispatch Service Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
August 28, 2019
08:30 - 10:00 EST Sandbox Dispatch Service Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.