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Markets and Related Programs

The IESO administers a series of markets and related programs that together comprise the province's wholesale electricity marketplace.

Final Addenda Posted

September 13, 2017

The IESO has posted an Addendum to each of the Regulation RFP and the Contract, in accordance with section 2.11 of the Regulation RFP. In addition to the Addenda, blackline versions of the RFP and Contract, an addendum summary document, an update to the FAQ document and an update to the Round 2 Question and Comment responses are now available below.

The third and final round of the Question and Comment Period is currently open. Questions must be submitted by September 15, 2017 for the IESO to post responses on September 22, 2017. All inquiries pertaining to the Regulation RFP must be emailed to No other form of communication regarding the Regulation RFP will be accepted by the IESO prior to the Proposal Submission Deadline.

The Proposal Submission Deadline is September 28, 2017 at 3:00 p.m., Toronto time. Other important dates are listed below and can be found in Section 2.4 of the Regulation Service RFP.