Skip Links
Sector Participants > Engagement Initiatives > Engagements > Review of IESO Generator Information Submittal Forms

Review of IESO Generator Information Submittal Forms

The IESO is reviewing Generator Information Submittal Form (1223) and Generator Information Submittal Form for 18-Month Outlook (1230) with intent of creating one form that will be used for submitting generator information to the IESO. The aim of this review is to reduce and simplify market participants' information submission requirements and improve IESO's information management process.

All stakeholders are invited to provide input on the posted draft version of the new form through email to

Input will be considered by the IESO in the development of this form.

Documents referenced on this page, but not posted, can be obtained by contacting with a link to the web page that lists the document and advise whether it needs to be provided in an accessible format. Please allow a minimum of one business day for a response.

Schedule of Activities



Expected Actions

March 15, 2016

Engagement initiative completed

  • Communication


December 10, 2015

Taking into consideration stakeholder input, the IESO will finalize and publish the response to market participants' feedback and the revised draft version of Generator Information Submittal Form for Reliability Assessments.

  • Generator Information Submittal Form - Revised Draft
  • IESO Response to Stakeholder Feedback


December 4, 2015

Stakeholder Feedback due

  • Deadline Extended for Stakeholder Comments - Review of the IESO's Generator Information Submittal Forms 1223 and 1230

Stakeholder Feedback

  • Bruce Power
  • Northland Power
  • Ontario Power Generation

Stakeholder input posted

November 11, 2015

Post and communicate launch of stakeholder initiative to seek input on new Generator Information Submittal form for Reliability Assessments.

  • Communication
  • Backgrounder and Questions for Stakeholders
  • Generator Information Submittal Form – Draft

Stakeholders to provide input by email