Long-Term RFP and Expedited Process

After more than a decade of strong supply, Ontario is entering a period of emerging system needs that will require new electricity resources this decade. This is a result of numerous supply and demand factors, such as the uptake of electric transportation, a growing economy, the retirement of the Pickering nuclear plant and other nuclear refurbishments, in addition to expiring contracts with existing facilities.

To address these needs, the IESO is competitively securing 2,500 MW of capacity through the first Long-Term Request for Proposals (LT1 RFP), which will focus on meeting emerging system reliability needs. It will also offer certainty and clarity for proponents through longer commitment periods, allowing new resources time to build.

The LT1 RFP will acquire capacity services from new-build electricity resources with a commercial operation date of 2027, with the option of longer terms for those able to reach commercial operation earlier. An additional 1,000 MW will be sought through a complimentary expedited procurement process, which will target new-build electricity resources able to commit to commercial operation in 2025. The 2022 Annual Acquisition Report (AAR) describes these mechanisms and needs in more detail.

The LT1 RFP, together with the expedited process, is expected to procure year-round effective capacity from dispatchable new-build resources. These resources will meet the mandatory requirements established in the LT1 RFP, which were designed to take into account the nature of emerging system needs.

Future long-term RFPs will build on lessons learned from the LT1 RFP and evolve based on system needs. Procurement design and requirements have been and will continue to be shaped by input from stakeholders through the Resource Adequacy Engagement, as well as other IESO assessments and engagements.

Questions or comments on the LT1 RRP can be sent to LT.RFP@ieso.ca.

LT1 RFP and Expedited Process Updates

The final LT1 RFQ is posted, including Addendum #1 issued on June 23, 2022. The IESO has also posted two Questions and Answers documents - as of June 17, 2022 (*note further clarity has been provided in select response) and as of June 23, 2022. Interested parties have until Monday June 27, 2022 at 10:00 AM to submit any questions or comments to the IESO on the LT1 RFQ. Per Section 2.3 of the LT1 RFQ, any questions or comments must be sent to LT.RFP@ieso.ca. Revised Prescribed Forms have also been updated based on stakeholder feedback. The IESO is accepting Qualification Submissions until June 30, 2022, prior to 3:00 P.M. (EPT) on the Qualification Submission Deadline. Interested parties should submit any questions to the IESO at LT.RFP@ieso.ca. After submitting a Qualification Submission Fee an email must be sent to LT.RFP@ieso.ca with a copy to ieso.treasury@ieso.ca with the following information: (a) RFQ Applicant name; (b) RFQ Applicant ID; (c) expected deposit date; and (d) amount of Qualification Submission Fee deposited.

As a reminder, during the competitive process the IESO must adhere to a very strict communication protocol set out in the LT1 RFQ to maintain the integrity and fairness of the LT1 RFQ process for all participants. Under the LT1 RFQ a breach of the communication rules may result in disqualification from participating in the LT1 RFQ and subsequent procurement processes for which the LT1 RFQ applies. We encourage you to revisit LT1 RFQ Sections 2.3 and 2.5 in particular for the communication rules during the procurement process. Should you have a question, comment or require clarification, please submit by e-mail to LT.RFP@ieso.ca.


This request for qualifications (“RFQ”) and the statements and information contained herein, are based on the proposed design as of the date of posting and remain subject to amendment following the process set out in the RFQ. Nothing in this RFQ, or the posting thereof, obligates the IESO to continue or conduct the procurement process contemplated herein, or any other procurement process. Nothing in this posted RFQ or contract constitutes, nor shall it be construed to constitute, an agreement, guarantee, representation, or warranty, express or implied, on behalf of the IESO. The IESO provides no such agreement, guarantee, representation, or warranty and disclaims any and all liability associated therewith. In the event there is any conflict or inconsistency between this RFQ or contract, and the IESO market rules, any legislation or regulation, the terms in the market rules, legislation, or regulation as applicable, govern

Procurement Milestones

Date              Milestone

June 3, 2022

Final LT1 RFQ issued

June 30, 2022

LT1 RFQ submission deadline

August 2, 2022

Draft LT1 RFP/Contract (including for Expedited Process) issued

August 15, 2022

LT1 RFQ Notification of Qualified Applicants

October 1, 2022

Final Expedited Process RFP issued

Archived Procurement Documents
  • LT1 RFQ (Draft April 22, 2022)
  • Blackline to draft posted February 28, 2022