Medium-Term RFP

The IESO will continue to run a series of cadenced medium-term request for proposals (RFPs) every two to three years, with flexible five-year commitment periods to secure resources with expiring contracts. Future medium-term RFPs will continue to evolve based on system needs and will likely see increased resource eligibility and competition. Procurement designs will continue to be shaped by input from stakeholders through IESO’s ongoing engagements.

The second medium-term procurement (MT2 RFP) has re-committed existing resources with contracts expiring over the 2026-2029 period, which are best positioned to cost-effectively meet energy and capacity needs emerging late this decade and into the early 2030s. The MT2 RFP included both capacity and energy streams, and proposals were evaluated on price. For more information on the results of the MT2 RFP, please see the updates provided below.

MT2 RFP Updates

The IESO has concluded the second medium-term procurement (MT2 RFP) and has executed contracts with 27 Selected Proponents, totalling 3,001.11 MW of Maximum Contract Capacity. The MT2(e) RFP (Energy Stream) yielded 19 Selected Proponents, totalling 994.97 MW of Maximum Contract Capacity, and the MT2(c) RFP (Capacity Stream) yielded eight Selected Proponents, totalling 2,006.14 MW of Maximum Contract Capacity.

More details can be found in the final MT2 Results Table.

Engaging Stakeholders

Learn more about the engagement plan, objectives, approach, timeline and considerations for engaging stakeholders.

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Disclaimer

The Medium-Term 2 Energy and Capacity request for proposals ("MT2 RFPs") and the statements and information contained therein, are based on the proposed design as of the date of posting and remain subject to amendment following the process set out in the MT2 RFPs. Nothing in the MT2 RFPs, or the posting thereof, obligates the IESO to continue or conduct the procurement process contemplated herein, or any other procurement process. Nothing in the posted MT2 RFPs or contracts 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 the MT2 RFPs or contracts, and the IESO market rules, any legislation or regulation, the terms in the market rules, legislation, or regulation as applicable, govern.

MT2 RFP Procurement Documents

MT2(c) RFP – Medium Term 2 – Capacity Stream

  1. MT2(c) RFP – Addendum #1 (December 20, 2024)
  2. MT2(c) RFP (Revised November 15, 2024)
  3. MT2(c) RFP – Blackline to October 22 draft (November 15, 2024)
  4. MT2(c) Contract (Revised November 15, 2024)
  5. MT2(c) Contract – Blackline to October 22 draft (November 15, 2024)
  6. MT2 RFP Capacity and Energy Qualification Guidance Document (August 19, 2024)
  7. Prescribed Form: Proponent Information, Declarations and Workbook (Capacity) – MT2(c)PF-PI100 (November 15, 2024)
  8. Proposal Workbook (Capacity) – MT2(c)PF-PW100 (November 15, 2024)
  9. Prescribed Form: Economic Bid Statement (Capacity) – MT2(c)PF-EB100 (November 15, 2024)
  10. Prescribed Form: Notice of Proposal Withdrawal (Capacity) - MT2(c)PF-NW100(November 15, 2024)
  11. Proposal Security Tool (August 28, 2024)

MT2(e) RFP – Medium Term 2 – Energy Stream

  1. MT2(e) RFP – Addendum #1 (December 20, 2024)
  2. MT2(e) RFP (Revised November 15, 2024)
  3. MT2(e) RFP – Blackline to October 22 draft (November 15, 2024)
  4. MT2(e) Contract (Revised November 15, 2024)
  5. MT2(e) Contract – Blackline to October 22 draft (November 15, 2024)
  6. MT2 RFP Capacity and Energy Qualification Guidance Document (August 19, 2024)
  7. Prescribed Form: Proponent Information, Declarations and Workbook (Energy) – MT2(e)PF-PI100 (November 15, 2024)
  8. Proposal Workbook (Energy) – MT2(e)PF-PW200 (December 20, 2024)
  9. Prescribed Form: Economic Bid Statement (Energy) – MT2(e)PF-EB100 (November 15, 2024)
  10. Prescribed Form: Notice of Proposal Withdrawal (Energy) - MT2(e)PF-NW100 (November 15, 2024)
  11. Proposal Security Tool (August 28, 2024)
  12. Fixed Price Tool (Energy) (November 15, 2024)

MT2 Questions and Responses

MT I RFP Archived Documents

Procurement Documents

Procurement Resources

Procurement Webinars

The IESO has concluded the first medium-term RFP, and has entered into MTC I Contracts, each with a five-year term, with one wind and four natural gas facilities. Together these facilities contribute more than 700 MW of capacity to the system, ensuring ongoing value from previous investments in supply. See the MT1 RFP Results Table. 

This supply will be available between 2024 – 2026, at a lower cost than previous contracts. This procurement complements other IESO supply acquisition activities to meet reliability targets over the same timeframe.

The IESO will continue to run a series of cadenced medium-term RFPs every two to three years, with flexible five-year commitment periods in order to secure resources with expiring contracts. Future medium-term RFPs will evolve based on system needs and will likely see increased resource eligibility and competition. Procurement designs will continue to be shaped by input from stakeholders through the Resource Adequacy Engagement, as well as other IESO assessments and engagements.

MT2 RFP Archived Documents

MT2(c) RFP – Medium Term 2 – Capacity Stream

  1. Prescribed Form: Registration Form (Capacity) – MT2(c)PF-REG100 (December 18, 2024)
  2. Draft MT2(c) RFP (Revised October 22, 2024)
  3. Draft MT2(c) RFP – Blackline to September 20 draft (October 22, 2024)
  4. Draft MT2(c) Contract (Revised October 22, 2024)
  5. Draft MT2(c) Contract – Blackline to September 20 draft (October 22, 2024)
  6. Draft MT2(c) RFP (Revised September 20, 2024)
  7. Draft MT2(c) RFP – Blackline to August 19 draft (September 20, 2024)
  8. Draft MT2(c) Contract (Revised September 20, 2024)
  9. Draft MT2(c) Contract – Blackline to August 28 draft (September 20, 2024)
  10. Draft Prescribed Form: Proponent Information, Declarations and Workbook (Capacity) – MT2(c)PF-PI100 (August 28, 2024)
  11. Draft Proposal Workbook (Capacity) – MT2(c)PF-PW100 (August 28, 2024)
  12. Draft Prescribed Form: Economic Bid Statement (Capacity) – MT2(c)PF-EB100 (August 28, 2024)
  13. Draft Prescribed Form: Notice of Proposal Withdrawal - MT2PF-NW100 (August 28, 2024)

MT2(e) RFP – Medium Term 2 – Energy Stream

  1. Proposal Workbook (Energy) – MT2(e)PF-PW100 (November 15, 2024)
  2. Prescribed Form: Registration Form (Energy) – MT2(e)PF-REG100 (December 18, 2024)
  3. Draft MT2(e) RFP (Revised October 22, 2024)
  4. Draft MT2(e) RFP – Blackline to September 20 draft (October 22, 2024)
  5. Draft MT2(e) Contract (Revised October 22, 2024)
  6. Draft MT2(e) Contract – Blackline to September 20 draft (October 22, 2024)
  7. Draft MT2(e) RFP (Revised September 20, 2024)
  8. Draft MT2(e) RFP – Blackline to August 19 draft (September 20, 2024)
  9. Draft MT2(e) Contract (Revised September 20, 2024)
  10. Draft MT2(e) Contract – Blackline to August 28 draft (September 20, 2024)
  11. Draft Prescribed Form: Proponent Information, Declarations and Workbook (Energy) – MT2(e)PF-PI100 (August 28, 2024)
  12. Draft Proposal Workbook (Energy) – MT2(e)PF-PW100 (August 28, 2024)
  13. Draft Prescribed Form: Economic Bid Statement (Energy) – MT2(e)PF-EB100 (August 28, 2024)
  14. Draft Prescribed Form: Notice of Proposal Withdrawal - MT2PF-NW100 (August 28, 2024)
  15. Fixed Price Tool (Energy) (August 28, 2024)

MT2 Questions and Responses