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 05 Dec 2019

Outage Times	Systems	Description
There are no scheduled outages.

Future Outages

Sort your results by:
Outage Date
System
Archive

Outage Times	Systems	Description
December 10, 2019
11:25 - 11:35 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.
14:25 - 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.
11:25 - 11:35 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.
14:25 - 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.
December 11, 2019
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14:00 - 14:10 EST	IESO Reports Site	The Predispatch report will not be published.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 9, 2019
10:30 - 10:40 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.

Outage Times	Date	Description
Dispatch Service
11:25 - 11:35 EST	December 10, 2019	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.
14:25 - 14:35 EST	December 10, 2019	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	December 11, 2019	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.
EMI
11:25 - 11:35 EST	December 10, 2019	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.
14:25 - 14:35 EST	December 10, 2019	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.
10:30 - 10:40 EST	December 9, 2019	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.
Day-Ahead Optimization System (DAOS)
13:15 - 17:30 EST	December 11, 2019	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	December 11, 2019	The Predispatch report will not be published.

Outage Times	Systems	Description
May 7, 2019
11:45 - 12:05 EST	Sandbox System and Applications	Sandbox systems used for participant testing of the IESO EMI application will be unavailable.
May 8, 2019
12:05 - 13:50 EST	Sandbox Outage Coordination and Scheduling System (OCSS) - Web Service (API)	OCSS Web User Interface will be unavailable for outage submission and retrieval. OCSS Web Service will be unavailable for outage submission and retrieval.
10:05 - 10:15 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
12:15 - 13:20 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.
12:15 - 13:20 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.
12:15 - 13:20 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 - 13:20 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 - 13:20 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 - 13:20 EST	Message Exchange	Loss of access to Message Exchange will result in the following applications being impacted: Automated dispatch instructions will be unavailable. The IESO will manually dispatch by phone as necessary.
12:15 - 13:20 EST	Online IESO	Due to planned outage 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.
12:15 - 13:20 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable Settlements Online Forms cannot be submitted or retrievedTransmission Rights Auction (TRA) application will be unavailableAll on-line collaboration communities will be unavailableOnline Outage Request Form used for submitting or retrieving outages will be unavailablePrudential Manager used to monitor and retrieve prudential information will be unavailableMeter data cannot be retrieved.
13:00 - 13:10 EST	Report Site	The Predispatch report will not be published.
May 16, 2019
11:05 - 12:54 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.
13:30 - 13:40 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.
May 22, 2019
10:30 - 12:30 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.
May 9, 2019
08:30 - 08:35 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
08:30 - 08:35 EST	Sandbox System and Applications	Sandbox systems used for participant testing of the IESO EMI application will be unavailable.
14:45 - 15:15 EST	IESO Reports Site	Public Report publication will be delayed.Confidential Report publication will be delayed.
May 23, 2019
12:00 - 12:15 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.
08:30 - 12:00 EST	Sandbox Portal	Transmission Rights Auction (TRA) application cannot be tested on Sandbox.
10:40 - 10:45 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.
May 21, 2019
08:30 - 12:30 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
May 29, 2019
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 - 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.
12:15 - 12:45 EST	Message Exchange	Loss of access to Message Exchange will result in the following applications being impacted: Automated dispatch instructions will be unavailable. The IESO will manually dispatch by phone as necessary.
13:00 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
May 28, 2019
14:25 - 14:30 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.
13:25 - 13:30	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.
10:30 - 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.
10:30 - 10:35 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.
May 27, 2019
10:20 - 11:20 EST	IESO Reports Site	Public Report publication will be delayed.Confidential Report publication will be delayed.The Predispatch report will not be published.
May 1, 2019
12:15 - 13:20 EST	Dispatch Service	RSS feeds for Advisory Notifications (Day 0 Advisory Notices, Day 1- 34 Advisory Notices, Emergency Advisory Notices) will stop publishing notices during the outage.
12:15 - 13:20 EST	Reliability Compliance Tool	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 - 13:20 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 - 13:20 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 - 13:20 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 - 13:20 EST	Message Exchange	Loss of access to Message Exchange will result in the following applications being impacted: Automated dispatch instructions will be unavailable. The IESO will manually dispatch by phone as necessary.
12:15 - 13:20 EST	Online IESO	Due to planned outage 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.
12:15 - 13:20 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable Transmission Rights Auction (TRA) application will be unavailableAll on-line collaboration communities will be unavailableOnline Outage Request Form used for submitting or retrieving outages will be unavailablePrudential Manager used to monitor and retrieve prudential information will be unavailableSettlements Online Forms cannot be submitted or retrievedMeter data cannot be retrieved.
13:00 - 13:10 EST	Report Site	The Predispatch report will not be published.
May 2, 2019
14:45 - 15:15 EST	IESO Reports Site	Public Report publication will be delayed.Confidential Report publication will be delayed.
June 5, 2019
09:20 - 09:50 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.
09:20 - 09:50 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.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.
12:05 - 13:50 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.
12:05 - 13:35 EST	Outage Coordination and Scheduling System (OCSS) - Web Service (API)
13:35 - 13:50	Outage Coordination and Scheduling System (OCSS) - CROW Web Interface
June 10, 2019
11:20 - 11:30 EST	Online IESO	Due to planned outage 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.
June 12, 2019
11:20 - 11:30 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.
11:20 - 11:30 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.
11:20 - 11:30 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.
11:20 - 11:30 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.
11:20 - 11:30 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
11:20 - 11:30 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.
11:20 - 11:30 EST	Online IESO	Due to planned outage 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.
11:20 - 11:30 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
11:20 - 11:30 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
11:20 - 11:30 EST	IESO Reports Site	Report site will be unavailable and publication of public and confidential Reports will be delayed.
11:20 - 11:30 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
June 18, 2019
06:35 - 06:40 EST	Online IESO	Due to planned outage 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.
June 26, 2019
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
13:15 - 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.
09:00 - 11:00 EST	IESO Portal	Transmission Rights Auction (TRA) will be unavailable
10:30 - 10:45 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.
11:10 - 11:20 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.
June 24, 2019
13:25 - 13:30 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.
14:42 - 14:47 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 3, 2019
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 - 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 - 13:10 EST	Report Site	The Predispatch report will not be published.
July 4, 2019
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 - 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 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
19:00 - 21:00 EST	Online IESO	Due to planned outage 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.
July 8, 2019
08:30 - 08:40 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
July 10, 2019
08:20 - 08:30 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.
09:20 - 09:30 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.
12:20 - 12:30 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.
13:20 - 13:30 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.
08:20 - 08:30 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.
09:20 - 09:30 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	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 - 13:30 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.
08:20 - 08:30 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.
09:20 - 09:30 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.
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.
13:20 - 13:30 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.
08:20 - 08:30 EST	Online IESO	Due to planned outage 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.
09:20 - 09:30 EST	Online IESO	Due to planned outage 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.
12:20 - 12:30 EST	Online IESO	Due to planned outage 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.
13:20 - 13:30 EST	Online IESO	Due to planned outage 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.
08:20 - 08:30 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
09:20 - 09:30 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
12:20 - 12:30 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
13:20 - 13:30 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
08:20 - 08:30 EST	IESO Reports Site	Report site will be unavailable and publication of public and confidential Reports will be delayed.
09:20 - 09:30 EST	IESO Reports Site	Report site will be unavailable and publication of public and confidential Reports will be delayed.
12:20 - 12:30 EST	IESO Reports Site	Report site will be unavailable and publication of public and confidential Reports will be delayed.
13:20 - 13:30 EST	IESO Reports Site	Report site will be unavailable and publication of public and confidential Reports will be delayed.
08:20 - 08:30 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.
09:20 - 09:30 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.
12:20 - 12:30 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.
13:20 - 13:30 ET	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.
July 16, 2019
09:00 - 11:00 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
July 23, 2019
13:25 - 13:30 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.
14:35 - 14:40 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.
August 7, 2019
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 - 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 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
July 12, 2019
13:30 - 13:45 EST	IESO Portal	Transmission Rights Auction (TRA) will be unavailable
August 6, 2019
12:30 - 12:40 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.
August 16, 2019
11:20 - 11:30 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.
11:20 - 11:30 EST	Online IESO	Due to planned outage 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 20, 2019
08:00 - 16:00 EST	Sandbox IESO Reports Site	Testing on the Sandbox Report site will be unavailable
August 21, 2019
08:00 - 16:00 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service 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 28, 2019
08:30 - 10:00 EST	Sandbox Dispatch Service	Sandbox automated dispatch instructions sent via sandbox Dispatch Service will be unavailable.
September 12, 2019
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 - 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 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
September 21, 2019
12:00 - 14:00 EST	Online IESO	Due to planned outage 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.
00:00 - 23:59 EST	IESO Reports - VDM V1	There is a scheduled a system upgrade this weekend for the Meter Data Acquisition System (MDAS) due to which meter data import and VEE jobs on Meter Data Management system will be running on a delayed schedule on the morning of Sunday September 22nd 2019. These reports are expected to be published later in the day on Sunday, Sept 22, 2019.
September 24, 2019
13:20 - 13:37 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.
September 27, 2019
09:20 - 09:40 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.
September 1, 2019
19:00 - 21:00 EST	Online IESO	Due to planned outage 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.
September 18, 2019
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 - 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 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
October 2, 2019
08:00 - 13:45 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.
October 17, 2019
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 - 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 - 13:10 EST	IESO Reports Site	The Predispatch report will not be published.
October 15, 2019
12:20 - 12:25 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.
13:20 - 13:25 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.
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.
12:20 - 12:25 EST	Online IESO	Due to planned outage 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.
13:20 - 13:25 EST	Online IESO	Due to planned outage 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.
14:20 - 14:25 EST	Online IESO	Due to planned outage 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.
12:20 - 12:25 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
13:20 - 13:25 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
14:20 - 14:25 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
October 18, 2019
10:20 - 10:30 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.
13:20 - 13:30 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.
October 21, 2019
09:20 - 09:30 EST	IESO Reports Site	The Predispatch report will not be published.
October 22, 2019
12:10 - 12:15 EST	Outage Coordination and Scheduling System (OCSS) - CROW Web Interface	OCSS Web Service will be unavailable for outage submission and retrieval.OCSS Web User Interface will be unavailable for outage submission and retrieval.
11:55 - 14:20	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
October 23, 2019
12:40 - 12:50 EST	IESO Portal	Report site will be unavailable and publication of public and confidential Reports will be delayed.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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
12:20 - 12:25	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
09:40 - 09:55 EST	IESO Portal	Report site will be unavailable and publication of public and confidential Reports will be delayed.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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed. 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.
October 24, 2019
11:20 - 13:20	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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed. 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.OCSS Web User Interface will be unavailable for outage submission and retrieval. 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.Report site will be unavailable and publication of public and confidential Reports will be delayed.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 New person registration in the Registration Application will not be available.
October 25, 2019
09:20 - 09:40 EST	EMI	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.
12:20 - 12:40 EST	EMI	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.
11:20 - 12:23	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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed. 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.OCSS Web User Interface will be unavailable for outage submission and retrieval. 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.Report site will be unavailable and publication of public and confidential Reports will be delayed.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 New person registration in the Registration Application will not be available.
October 28, 2019
11:20 - 12:23	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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed. 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.OCSS Web User Interface will be unavailable for outage submission and retrieval. 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.Report site will be unavailable and publication of public and confidential Reports will be delayed.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 New person registration in the Registration Application will not be available.
October 29, 2019
13:25 - 13:30 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.
14:51 - 14:56 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 5, 2019
02:25 - 02:35 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.
05:25 - 05:35 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.
02:25 - 02:35 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.
05:25 - 05:35 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.
13:20 - 14:20 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
13:20 - 14:20 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 - 14:20 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.
13:20 - 14:20 EST	Outage Coordination and Scheduling System (OCSS) - CROW Web Interface	OCSS Web User Interface will be unavailable for outage submission and retrieval.
13:20 - 14:20 EST	Online IESO	New person registration in the Registration Application will not be available.
13:20 - 14:20 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
14:00 - 14:10 EST	Report Site	The Predispatch report will not be published.
November 6, 2019
09:00 - 11:30 EST	Sandbox System and Applications	Sandbox systems used for participant testing of the IESO EMI application will be unavailable.
November 13, 2019
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 19, 2019
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 26, 2019
13:20 - 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.
14:40 - 14:55 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 20, 2019
10:25 - 10:40 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.
11:18 - 11:37 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.
17:00 - 19:00 EST	Online IESO	Due to planned outages the following actions will not be available in Online IESO: create a Meter Trouble Report Due to planned outages the following actions will not be available in Online IESO: create a Notice of Disagreement (NOD) Reliability Compliance Tool used for self-certifications and self-reports will be unavailable
November 21, 2019
09:00 - 11:30 EST	Sandbox System and Applications	Sandbox systems used for participant testing of the IESO EMI application will be unavailable.
November 1, 2019
12:20 - 13:30 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 - 13:30 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 - 13:30 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.
12:20 - 13:30 EST	Outage Coordination and Scheduling System (OCSS) - CROW Web Interface	OCSS Web User Interface will be unavailable for outage submission and retrieval.
12:20 - 13:30 EST	Online IESO	New person registration in the Registration Application will not be available.
12:20 - 13:30 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 Prudential Manager used to monitor and retrieve prudential information will be unavailable EMI application used to submit bids, offers, schedules and forecasts will be unavailable. Market participants should confirm their bids and offers once the outage is completed.
13:00 - 13:10 EST	Report Site	The Predispatch report will not be published.

Planned IT Outages

Planned Outages for 05 Dec 2019

Future Outages

Past Outages