Customer Readiness - IT System Changes

The information on this page is intended to make participants aware of upcoming changes to market and program facing IT systems and applications and to advise of any action that might be required from them to ensure a seamless transition from the existing to the new applications and systems. 

Current Projects

Project Name

 Action

Online Settlement Data Submission

Register for webinar

Final Approval in Advance (FAA) criteria - Outage Management

Implementation into production postponed

Demand Forecast Improvements Project

On target for implementation into production on September 12, 2018

Dispatch Service

Register for cut-over from existing to new system by e-mailing dispatch.service@ieso.ca.

Interchange Enhancements

On target for implementation into production on September 12, 2018


Project: Online Settlement Data Submission

Project Description

The IESO will be migrating the Online Settlement Data submission application from the IESO Portal to Online IESO.

Who is affected?

All market participants submitting settlement data to the IESO.

Project Status

On target with implementation in production December 5, 2018. Sandbox implementation scheduled for October 25, 2018.

Action Required

Market participants are encouraged to attend the webinar as per September 19th communication sent to affected market participants. A two-week market trial will be scheduled after sandbox implementation scheduled for October 25, 2018. Details to follow.


Project: Final Approval in Advance (FAA) Criteria – Outage Management

Project Description

The IESO will be expanding the criteria for Final Approval in Advance (FAA) and update the eligibility for Auto Advanced Approval (AA). Expanding the criteria to receive FAA automatically in certain situations will eliminate the need for market participants to call the IESO control room to be granted approval via telephone.

Who is affected?

All market participants submitting equipment outage to the IESO.

Project Status

Implementation into production postponed.

Action Required

No action is required at this time.

Project: Demand Forecast Improvements 

Project Description

Introduction of new “Icing Event” outage purpose code for wind generators in the Outage Management tool. This is to improve the accuracy of variable generation forecasts for icing conditions by ensuring that occurrences of de-rated generation output capacity, specifically due to icing, are highlighted to the centralized forecast provider.          

Who is affected?

All wind generators registered with the IESO.            

Project Status

On target with implementation in production September 12, 2018.

Action Required

No action is required at this time.


Project: Dispatch Service

Project Description

Transition the tool used by market participants to accept and reject dispatch instructions from Message Exchange to Dispatch Service.

Additional information

Who is affected?

All market participants receiving dispatch instructions from the IESO (dispatchable generators and loads).

Project Status

Implemented in Production January 2018.

Action Required

Participants need to register for cut-over from existing Message Exchange to new Dispatch Service as soon as possible by e-mailing dispatch.service@ieso.ca.


Project:  Interchange Enhancements

Project Description

The IESO is planning to make changes with respect to the submission of e-Tags and the management of those transactions specifically within the mandatory window to improve the operation and management of interchange scheduling related tasks by enhancing existing interchange scheduling systems and processes.

Additional information

Who is affected?

All market participants exporting electricity from Ontario and/or importing electricity into Ontario.

Project Status

On target for implementation into production on September 12, 2018.

Action Required

No action is required at this time.