Market participants are required under the Market Rules to provide information to the IESO to enable the IESO to conduct reliability assessments (Chapter 5, section 7.5).
The submission deadlines for information for the 18-Month Outlook and annual reliability assessment are listed in the tables below.
These submissions are required each calendar year. Details on the content and format of the information to be provided are available under
Market Administration Manual 2.8 and
Market Administration Manual 2.11. Associated forms are listed below.
Deadlines for Generator Information Submissions (10 years and 6 months information)
Submission ||Due Date||Use Form|
|Annual Submission||April 1||1230|
|Updates to Annual Submission||As required||1230|
Deadlines for Transmitter Information Submissions
Submission ||Due Date||
Use Form||Information for|
|Q1||January 1||1484||18 months|
|Q2||April 1||1494||10 years and 6 months|
|Q3||July 1||1484||18 months|
|Q4||October 1||1484||18 months|