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 03 Oct 2022

Outage Times	Systems	Description
There are no scheduled outages.

Future Outages

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Outage Date
System
Archive

Outage Times	Systems	Description
October 4, 2022
17:00 - 19:00 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
October 6, 2022
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
12:15 - 12:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 12:45 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.
13:00 - 14:00 EST	IESO Reports Site	The Adequacy report will not be published.
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

Outage Times	Date	Description
Online IESO
17:00 - 19:00 EST	October 4, 2022	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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
IESO Reports Site
13:00 - 13:10 EST	October 6, 2022	The Predispatch report will not be published.
12:15 - 12:45 EST	October 6, 2022	Confidential Report publication will be delayed. Public Report publication will be delayed.
13:00 - 14:00 EST	October 6, 2022	The Adequacy report will not be published.
Dispatch Service
12:15 - 12:45 EST	October 6, 2022	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.
Day-Ahead Optimization System (DAOS)
12:15 - 16:30 EST	October 6, 2022	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

Outage Times	Systems	Description
September 29, 2022
07:00 - 07:15 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.
14:00 - 14:15 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.
September 28, 2022
7:00 EST - 14:30 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.
September 21, 2022
07:00 - 07:30 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.
September 15, 2022
14:30 - 14:35 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.
10:00 - 10:30 EST	Sandbox System and Applications	Sandbox systems used for participant testing of the IESO EMI application will be unavailable.
September 12, 2022
08:00 - 10:30 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
August 31, 2022
13:00 - 14:00 EST	IESO Reports Site	The Adequacy report will not be published.
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
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
12:15 - 12:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 12:45 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.
August 26, 2022
08:20 - 08:21 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.
12:20 - 12:21 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.
13:20 - 13:21 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.
August 25, 2022
08:20 - 08:21 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.
12:20 - 12:21 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.
13:20 - 13:21 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.
August 22, 2022
08:00 - 11:00 EST	Advisory Notifications	RSS feeds for Advisory Notifications (Day 0 Advisory Notices, Day 1- 34 Advisory Notices, Emergency Advisory Notices) will stop publishing notices during the outage.
08:00 - 11:00 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.
August 17, 2022
12:20 - 12:42 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.
18:00 - 20:00 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
August 10, 2022
18:00 - 20:00 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.
August 2, 2022
12:20 - 17:00 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
12:25 - 12:50 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.
07:34 - 08:00 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
July 25, 2022
14:20 - 14:35	Dispatch Service	EMI application used to submit bids, offers, schedules and forecast will be unavailable.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 MIM Web services used to submit bids, offers, schedules and forecast will be unavailable. MIM IDK used to submit bids, offers, schedules and forecast will be unavailable.
July 22, 2022
13:25 - 13:45	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. Capacity Auction – Submit Capacity Enrollment and Capacity 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. Confidential Report publication will be delayed. Public Report publication will be delayed.
July 21, 2022
13:00 - 14:00 EST	IESO Reports Site	The Adequacy report will not be published.
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
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
12:15 - 12:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 12:45 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.
July 12, 2022
09:00 - 09:30 EST	Sandbox MIM	Sandbox MIM Web Services and Sandbox MIM IDK used to submit Sandbox bids, offers schedules and forecasts will be unavailable.
June 27, 2022
09:00 - 10:00 EST	Online IESO	RSS feeds for Advisory Notifications (Day 0 Advisory Notices, Day 1- 34 Advisory Notices, Emergency Advisory Notices) will stop publishing notices during the outage.
17:00 - 19:00 EST	Online IESO	RSS feeds for Advisory Notifications (Day 0 Advisory Notices, Day 1- 34 Advisory Notices, Emergency Advisory Notices) will stop publishing notices during the outage.
17:00 - 22:00 EST	IESO Website	Market data such as Demand, Supply and Price will not be updated on the Home Page or the Power Data Page.
17:00 - 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
17:00 - 22:00 EST	Report Site	The Adequacy report will not be published.The Predispatch report will not be published.
June 23, 2022
13:00 - 14:00 EST	IESO Reports Site	The Adequacy report will not be published.
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
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
12:15 - 12:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 12:45 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.
June 20, 2022
15:20 - 16:00 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.
June 10, 2022
11:52 - 11:57 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.
June 8, 2022
11:52 - 11:57 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.
June 6, 2022
11:25 - 17:00 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
11:25 - 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.
May 31, 2022
14:10 - 14:13 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.
May 25, 2022
13:00 - 14:00 EST	IESO Reports Site	The Adequacy report will not be published.
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
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
12:15 - 12:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 12:45 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.
May 15, 2022
18:00 - 20:00 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
18:00 - 20:00 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.
May 11, 2022
12:15 - 13:15 EST	Report Site	The Adequacy report will not be published.
12:00 - 17:00 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 - 13:15 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.
11:50 - 13:15 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.
13:05 - 13:10 EST	Report Site	The Predispatch report will not be published.
12:15 - 13:15 EST	Report Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 13:15 EST	Online IESO	Transmission Rights Auction (TRA) will be unavailable
May 3, 2022
12:15 - 13:15 EST	Report Site	The Adequacy report will not be published.
12:00 - 17:00 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 - 13:15 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.
11:50 - 13:15 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.
13:05 - 13:10 EST	Report Site	The Predispatch report will not be published.
12:15 - 13:15 EST	Report Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 13:15 EST	Online IESO	Transmission Rights Auction (TRA) will be unavailable
April 25, 2022
09:20 - 09:40 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.
10:25 - 10:45 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.
April 24, 2022
18:00 - 20:00 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
April 21, 2022
01:05 - 01:15 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.
12:15 - 17:00 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
13:25 - 13:35 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.
14:20 - 14:35 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.
10:20 - 10:45 EST	Online IESO	Transmission Rights Auction (TRA) will be unavailable
April 20, 2022
10:25 - 10:50 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.
April 19, 2022
11:00 - 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.
11:00 - 16:00 EST	Sandbox Portal	Sandbox Prudential Manager used to monitor and retrieve prudential information will be unavailable
11:00 - 16:00 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
April 14, 2022
18:00 - 20:00 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.
April 11, 2022
08:30 - 08:40 EST	Save On Energy Website	There will be an outage on the Save on Energy web site (www.saveonenergy.ca).
08:30 - 08:40 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.
08:30 - 08:40 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.
08:30 - 08:40 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.
08:30 - 08:40 EST	Online IESO	Due to planned outages the following actions will not be available in Online IESO: Prudential System - Submit Prudential Support Information.
08:30 - 08:40 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
08:30 - 08:40 EST	Sandbox 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.
08:30 - 08:40 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
08:30 - 08:40 EST	Sandbox MIM	Sandbox MIM Web Services and Sandbox MIM IDK used to submit Sandbox bids, offers schedules and forecasts will be unavailable.
08:30 - 08:40 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
08:30 - 08:40 EST	Sandbox Transmission Rights Auction	Transmission Rights Auction (TRA) application cannot be tested on Sandbox.
08:30 - 08:40 EST	IESO Portal	Transmission Rights Auction (TRA) will be unavailable
April 8, 2022
07:00 - 07:40 EST	IESO Workspaces	All workspaces will be unavailable during this period.
April 7, 2022
07:00 - 07:40 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
April 5, 2022
18:10 - 18:15 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.
18:55 - 19:10 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.
18:10 - 18:15 EST	Save On Energy Website	There will be an outage on the Save on Energy web site (www.saveonenergy.ca).
18:55 - 19:10 EST	Save On Energy Website	There will be an outage on the Save on Energy web site (www.saveonenergy.ca).
April 1, 2022
13:00 - 13:10 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.
March 31, 2022
13:00 - 14:00 EST	IESO Reports Site	The Adequacy report will not be published.
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
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
12:15 - 12:45 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
12:15 - 12:45 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.
March 30, 2022
18:00 - 20:00 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
00:01 - 12:00 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.
March 29, 2022
15:00 - 23:59 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.
March 28, 2022
18:00 - 20:00 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.
March 23, 2022
15:30 - 16:00 EST	Online IESO	Due to planned outages the following actions will not be available in Online IESO: Prudential System - Submit Prudential Support Information.
March 16, 2022
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
12:20 - 12:30 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.
12:20 - 12:30 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.
March 10, 2022
17:00 - 20:00 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. Capacity Auction – Submit Capacity Enrollment and Capacity 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.
March 3, 2022
17:00 - 20:00 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.
March 2, 2022
15:15 - 15:50 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.
14:15 - 14:50 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.
12:15 - 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.

Planned IT Outages

Planned Outages for 03 Oct 2022

Future Outages

Past Outages