The Market Rules & Manuals Library contains the documents needed to interact in Ontario's electricity marketplace including the Market Rules, approved by the IESO Board of Directors, which govern the IESO-controlled grid and IESO-administered markets.
Market manuals and procedures, approved by IESO management, provide more detailed descriptions of the requirements for various activities specified in the Market Rules, and include the forms and agreements required by market participants.
Capacity Auction Rules Library - Capacity Auction Participants, including Demand Response Auction Participants, must consult the Point-in-time Rules applicable to the Capacity Auction or Demand Response Auction in which they participated, by date, for purposes related to their participation or to the satisfaction of program specific obligations. The Point-in-time Rules may differ in material respects from the current set of market documents posted below.
See Capacity Auction Rules Library for applicable Point-in-time Rules for Capacity Auction Participants.
Accessibility: The forms available on this website are locked, fillable Word or Excel forms and not all of the content may be captured by a screen-reading device. If you require additional assistance to complete and submit a form, please contact Customer Relations at customer.relations@ieso.ca.
The current set of market documents known as Baseline 52.0, was updated and published on September 11, 2024.