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Participant Registration

The Independent Electricity System Operator (IESO) requires all Organizations wishing to participate in the IESO-administered markets and/or programs, or have a facility that causes or permits electricity to be conveyed into, though, or out of the IESO-controlled grid to register their Company.


How to Begin

Please contact the IESO at market.entry@ieso.ca prior to completing any documents for registration. Market Entry will provide instructions and assistance in completing and submitting the applicable forms and/or tasks listed below:

Market Entry will establish mandatory organization contacts and provide initial access to the Registration System which will allow you to complete the remainder of the registration tasks online. Some of these tasks may include, but are not restricted to:

An Overview of the IESO-Administered Markets provides information on Ontario's physical power system, roles in the marketplace and operation of the real-time IESO-administered markets.

 
Customer Relations | e-mail: Customer.Relations@ieso.ca | Telephone: 905-403-6900 | Toll-free: 1-888-448-7777 | Fax: 905-403-6921
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