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 17 Jun 2019

Outage Times	Systems	Description
There are no scheduled outages.

Future Outages

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Outage Date
System
Archive

Outage Times	Systems	Description
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
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.

Outage Times	Date	Description
Online IESO
06:35 - 06:40 EST	June 18, 2019	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.
Day-Ahead Optimization System (DAOS)
12:15 - 16:30 EST	June 26, 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
Dispatch Service
12:15 - 12:45 EST	June 26, 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.
IESO Reports Site
13:00 - 13:10 EST	June 26, 2019	The Predispatch report will not be published.

Outage Times	Systems	Description
March 20, 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.
March 13, 2019
10:30 - 11:40 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.
10:30 - 11:40 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.
March 26, 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.
14:25 - 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 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.
14:25 - 14:30 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.
16:00 - 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 12, 2019
13:35 - 13:40 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.
March 27, 2019
00:01 - 11:00 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 28, 2019
11:00 - 11:40 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.
April 2, 2019
18:20 - 18:24 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.
19:40 - 19:44 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.
18:20 - 18:24 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)
19:40 - 19:44 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)
April 13, 2019
09:10 - 09:12 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.
April 9, 2019
10:30 - 10:55 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.
10:30 - 10:55 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.
April 10, 2019
12:25 - 12:45 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, 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	Report Site	The Predispatch report will not be published.
April 16, 2019
11:25 - 16:20 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
12:26 - 12:42 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.
13:21 - 13:38 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.
22:20 - 22:40 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.
12:26 - 12:42 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.
13:21 - 13:38 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.
05:10 - 05:20 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.
19:32 - 19:42 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.
23:37 - 23:47 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.
02:45 - 02:50 EST	IESO Reports Site	Confidential Report publication will be delayed. Public Report publication will be delayed.
April 17, 2019
11:20 - 11:55 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.
11:20 - 11:55 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.
April 18, 2019
10:20 - 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.
11:20 - 11:27 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 23, 2019
22:25 - 22:35 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.
20:30 - 20:42 EST	IESO Portal	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.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
22:25 - 22:35 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.
23:37 - 23:47 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.
April 25, 2019
08:00 - 09:00 EST	Sandbox MIM	Sandbox systems used for participant testing of the IESO EMI application will be unavailable.
08:00 - 11:35 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.
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	IESO Sandbox 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	IESO Sandbox Reports Site	Testing on the Sandbox Report site will be unavailable

Planned IT Outages

Planned Outages for 17 Jun 2019

Future Outages

Past Outages