Contract Management Forms

Through the procuring of electricity generation, the Independent Electricity System Operator (IESO) establishes and manages contracts with a wide range of suppliers.

As part of the contract management process, suppliers submit notification of significant events or other information relating to the project through a standard set of forms. All forms relating to this process can be found in the list below.

If a form requires a signature, please ensure it belongs to one of the following:

  • the company representative
  • a notice contact, or
  • an authorized signatory of the corporation.

These forms are regularly reviewed and updated, so please download the relevant form for each submission to ensure you are using the most recent version. Please email all completed forms in PDF format to the email address(es) as listed on each form.

The forms found on this page are locked, fillable forms and not all of the content in these documents may be captured by a screen-reading device. If you require additional assistance to complete and submit these forms, please contact the Contract Management Team at

Energy Storage Prescribed Forms
Energy Storage – Prescribed Form: Amendment Request Energy Storage – Prescribed Form: Supplier Information Update
Energy Storage - Prescribed Form: Regulatory Charge Credit
Energy Storage – Prescribed Form: Force Majeure Notice
IRP Prescribed Forms

For all prescribed forms related to the Interruptible Rate Pilot (IRP), please visit the IESO’s IRP webpage.