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 27 Jan 2021

Outage Times	Systems	Description
There are no scheduled outages.

Future Outages

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Outage Date
System
Archive

Outage Times	Systems	Description
February 1, 2021
07:30 - 07:35 EST	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.
12:30 - 12:35 EST	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.
February 2, 2021
10:00 - 12:00 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
February 24, 2021
13:15 - 17:30 EST	Day-Ahead Optimization System (DAOS)	The Eligible Energy Limited Resource Optimization (EELR) run of the Day-Ahead Commitment Process (DACP) DAOS will not occur: EELRs will be unable to resubmit their offers for consideration in the DACP after the initial DAOS run If the initial DAOS run is successful, it will be considered the Schedule of Record
13:15 - 13:45 EST	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.
14:00 - 14:10 EST	IESO Reports Site	The Predispatch report will not be published.
13:15 - 13:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.

Outage Times	Date	Description
Dispatch Service
07:30 - 07:35 EST	February 1, 2021	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.
12:30 - 12:35 EST	February 1, 2021	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.
13:15 - 13:45 EST	February 24, 2021	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.
Sandbox IESO Reports Site
10:00 - 12:00 EST	February 2, 2021	Testing on the Sandbox Report site will be unavailable
Day-Ahead Optimization System (DAOS)
13:15 - 17:30 EST	February 24, 2021	The Eligible Energy Limited Resource Optimization (EELR) run of the Day-Ahead Commitment Process (DACP) DAOS will not occur: EELRs will be unable to resubmit their offers for consideration in the DACP after the initial DAOS run If the initial DAOS run is successful, it will be considered the Schedule of Record
IESO Reports Site
14:00 - 14:10 EST	February 24, 2021	The Predispatch report will not be published.
13:15 - 13:45 EST	February 24, 2021	Confidential Report publication will be delayed. Public Report publication will be delayed.

Outage Times	Systems	Description
January 20, 2021
13:15 - 13:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
13:15 - 17:30 EST	Day-Ahead Optimization System (DAOS)	The Eligible Energy Limited Resource Optimization (EELR) run of the Day-Ahead Commitment Process (DACP) DAOS will not occur: EELRs will be unable to resubmit their offers for consideration in the DACP after the initial DAOS run If the initial DAOS run is successful, it will be considered the Schedule of Record
13:15 - 13:45 EST	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.
14:00 - 14:10 EST	Report Site	The Predispatch report will not be published.
January 18, 2021
09:00 - 10:00 EST	Sandbox System and Applications	Sandbox systems used for participant testing of IESO applications, including the IESO Sandbox Portal, Sandbox Reports Site, Sandbox EMI, and Sandbox Online IESO, will be unavailable.
January 10, 2021
20:00 - 22:00 EST	Online IESO	Due to planned outage Online IESO will not be available. This includes the following applications: 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. Audit Revenue Metering Installation – Add, delete, or modify existing findings, actions, and finding classifications DR Metering Audit – Submit Demand Response metering audit Manage Contributor – Manage Demand Response Contributor Registry information Non-Compliance Report – Self-report possible breaches of the market rules 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. Beacon System – Manage the process with external suppliers related to FIT and microFIT contract management.
December 17, 2020
15:15 - 15:20 EST	IESO Website	Market data such as Demand, Supply and Price will not be updated on the Home Page or the Power Data Page. RSS feeds such as Advisory Notices and DACP notifications will not be updated in the Sector Participants section.
15:40 - 15:45 EST	IESO Website	Market data such as Demand, Supply and Price will not be updated on the Home Page or the Power Data Page. RSS feeds such as Advisory Notices and DACP notifications will not be updated in the Sector Participants section.
December 10, 2020
12:15 - 16:30 EST	Day-Ahead Optimization System (DAOS)	The Eligible Energy Limited Resource Optimization (EELR) run of the Day-Ahead Commitment Process (DACP) DAOS will not occur: EELRs will be unable to resubmit their offers for consideration in the DACP after the initial DAOS run If the initial DAOS run is successful, it will be considered the Schedule of Record
12:15 - 14:15 EST	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.
12:45 - 12: 55 EST	EMI	EMI application used to submit bids, offers, schedules and forecast will be unavailable.EMI API application used to submit bids, offers, schedules and forecast will be unavailable.
12:15 - 14:15 EST	IESO Reports Site	Public Report publication will be delayed.Confidential Report publication will be delayed.
December 9, 2020
13:15 - 13:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
13:15 - 17:30 EST	Day-Ahead Optimization System (DAOS)	The Eligible Energy Limited Resource Optimization (EELR) run of the Day-Ahead Commitment Process (DACP) DAOS will not occur: EELRs will be unable to resubmit their offers for consideration in the DACP after the initial DAOS run If the initial DAOS run is successful, it will be considered the Schedule of Record
13:15 - 13:45 EST	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.
14:00 - 14:10 EST	IESO Reports Site	The Predispatch report will not be published.
December 7, 2020
10:30 - 11:00 EST	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.
November 30, 2020
08:10 - 08:20 EST	IESO Portal	Prudential Manager used to monitor and retrieve prudential information will be unavailable
November 29, 2020
20:00 - 22:00 EST	Online IESO	Due to planned outage Online IESO will not be available. This includes the following applications: 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. Audit Revenue Metering Installation – Add, delete, or modify existing findings, actions, and finding classifications DR Metering Audit – Submit Demand Response metering audit Manage Contributor – Manage Demand Response Contributor Registry information Non-Compliance Report – Self-report possible breaches of the market rules 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. Beacon System – Manage the process with external suppliers related to FIT and microFIT contract management.
November 27, 2020
10:25 - 10:35 EST	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.
11:35 - 11:45 EST	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.
November 17, 2020
08:05 - 08:10 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
November 12, 2020
19:35 - 19:40 EST	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.
November 11, 2020
13:15 - 13:45 EST	Report Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
13:15 - 17:30 EST	Day-Ahead Optimization System (DAOS)	The Eligible Energy Limited Resource Optimization (EELR) run of the Day-Ahead Commitment Process (DACP) DAOS will not occur: EELRs will be unable to resubmit their offers for consideration in the DACP after the initial DAOS run If the initial DAOS run is successful, it will be considered the Schedule of Record
13:15 - 13:45 EST	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.
14:00 - 14:10 EST	IESO Reports Site	The Predispatch report will not be published.
November 9, 2020
19:40 - 19:45 EST	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.
21:40 - 21:45 EST	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.
November 6, 2020
09:20 - 09:25 EST	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.
15:20 - 15:25 EST	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.
November 2, 2020
13:40 - 13:45 EST	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.
14:20 - 14:25 EST	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.
November 1, 2020
20:00 - 22:00 EST	Online IESO	Due to planned outage Online IESO will not be available. This includes the following applications: 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. Audit Revenue Metering Installation – Add, delete, or modify existing findings, actions, and finding classifications DR Metering Audit – Submit Demand Response metering audit Manage Contributor – Manage Demand Response Contributor Registry information Non-Compliance Report – Self-report possible breaches of the market rules 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. Beacon System – Manage the process with external suppliers related to FIT and microFIT contract management.

Planned IT Outages

Planned Outages for 27 Jan 2021

Future Outages

Past Outages