Interchange Enhancements

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.

The Interchange Enhancements project is aimed to improve the operation and management of interchange scheduling related tasks by enhancing existing interchange scheduling systems and processes.  To support this objective, the project aims to limit manual intervention and error margins and reduce time spent on the phone for both market participants and the IESO’s control room operators.  One of the main benefits the IESO is pursuing will be to enable market participants to manage e-Tag ID changes electronically, without the need for IESO operations approval within the existing mandatory window.

All comments and enquiries on this engagement initiative can be directed to

Schedule of Activities



Expected Actions

April 12, 2018

Implementation into production postponed


March 21, 2018

Stakeholder Market Trials to test proposed changes

Provide feedback on market trials

February 7, 2018

Stakeholder Webinar to review Test Plan for upcoming Market Trials


January 23, 2018

(to be rescheduled to February 2018)

Stakeholder Webinar to review Test Plan for upcoming Market Trials


September 12, 2017

Interchange Enhancements | e-Tag submission deadline reminder


May 9, 2017

Deadline for stakeholders to submit feedback on materials and issues discussed at April 26th meeting

Stakeholder Feedback

IESO Response to OPG Feedback


April 26, 2017



March 10, 2017


February 28, 2017

Next Meeting


February 7, 2017

Stakeholder Feedback

IESO Response to Stakeholder Feedback


January 24, 2017



November 29, 2016