Long-Term 1 RFP and Expedited Process

LT1 RFP Updates

The LT1 RFP procurement for electricity capacity has now concluded.

The procurement has resulted in competitive prices for new resources, municipal support, and significant Indigenous participation and equity ownership in projects. The IESO has executed contracts with 13 selected proponents, acquiring 2,194.91 MW of new capacity scheduled to come into service between 2026-2028. As part of IESO’s continued commitment to transparency, individual contract prices can now be found in the results tables.

With the final results of the LT1 RFP, the first phase of the Resource Adequacy Framework for meeting needs this decade is now complete. The next series of procurements (LT2 RFP) will look to address needs emerging in 2029 and through the early-2030s.

For the latest information on the LT2 RFP, visit the Long-Term 2 RFP webpage.

The LT1 RFP has now concluded, further augmenting the suite of resources previously acquired under the Expedited Long-Term 1 Request for Proposals RFP (E-LT1 RFP) and Same Technology Upgrades Solicitation, and demonstrating the important progress being made to meet Ontario’s reliability demands. More information is available in the IESO’s Resource Adequacy Update.

Procurement design and requirements have been and will continue to be shaped by input from stakeholders. Engagement for the next long-term procurement, the LT2 RFP, is ongoing and more information can be found on the IESO’s Long-Term 2 RFP webpage.

Disclaimer

The Long Term request for proposals ("LT1 RFP") 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 LT1 RFP. Nothing in the LT1 RFP, 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 LT1 RFP 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 the LT1 RFP or contract, and the IESO market rules, any legislation or regulation, the terms in the market rules, legislation, or regulation as applicable, govern.

 

Engaging Stakeholders

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

 

Engaging Communities

Learn more about the IESO's commitment to engagement with Indigenous Communities and Municipalities.

Archive Procurement Documents

LT1 RFP Procurement Documents

The Long-Term 1 RFP (LT1 RFP) was launched in 2023, targeting year-round capacity to come into service between 2026-2028 to meet system needs.

The LT1 RFP acquired more than 2,100 MWs of new capacity to help meet system needs in the near and long term. This included 1,784 MW of capacity from electricity storage facilities and 410 MW from natural gas and biogas. See the LT1 RFP Results Table. 

The success of the LT1 RFP demonstrates the IESO’s ongoing progress in meeting Ontario’s reliability needs over the decade. With growing demand, an evolving supply mix and a drive toward grid decarbonization, the IESO is continuing the work to build a reliable, affordable, and sustainable electricity system that is critical to ensuring communities will flourish, businesses have the confidence to invest, and industries can decarbonize.

Final LT1 RFP Procurement Documents

Final LT1 Prescribed Forms

LT1 Questions and Responses

Other LT1 RFP Procurement Resources

Expedited Process

The Expedited Long-Term RFP (E-LT1 RFP) and Same Technology Upgrades Solicitation were launched in 2022 to competitively secure new capacity through targeted and streamlined processes intended to bring resources into service before 2027.

The E-LT1 RFP acquired more than 1,100 MWs of new capacity to help meet system needs in the near and long term. This included 880 MW of capacity from electricity storage facilities scheduled to be in service no later than 2026, and representing a fleet five times that of Ontario’s current battery storage capacity.

It also acquired roughly 285 MW of expansions at existing natural gas facilities, providing a cost-effective and timely solution to Ontario’s immediate reliability needs. Natural gas will be necessary as a transitional resource to help maintain reliability as Ontario grows its storage fleet. The important operability characteristics of gas must remain available to Ontario’s power system as no like-for-like replacement is yet available. These procurements therefore strike the right balance between ensuring system reliability and setting the stage for the ongoing energy transformation. See the E-LT1 RFP Results Table.

The IESO’s Same Technology Upgrades Solicitation secured agreements with seven natural gas facilities for enhancements to existing equipment, which in total will provide 286 MW incremental capacity to Ontario’s system by mid-decade. See the Results Table.

Energy storage will be a key enabler in meeting Ontario’s future needs, and the Long-Term RFP, launching this fall, will build on these results, completing Ontario’s overall procurement of approximately 2,500 MW of storage that will be online/in-service toward the end of the decade.

More information is available in the IESO's June 2023 Resource Adequacy Update.

Expedited Process Final Procurement Documents

CIB E-LT1 Guidance Documents

E-LT1 Question and Comment Period Responses

Other E-LT1 Procurement Resources

Expedited Process Archived Procurement Documents

Same Technology Upgrades Solicitation

The Expedited Long-Term RFP (E-LT1 RFP) and Same Technology Upgrades Solicitation were launched in 2022 to competitively secure new capacity through targeted and streamlined processes intended to bring resources into service before 2027.

The E-LT1 RFP acquired more than 1,100 MWs of new capacity to help meet system needs in the near and long term. This included 880 MW of capacity from electricity storage facilities scheduled to be in service no later than 2026, and representing a fleet five times that of Ontario’s current battery storage capacity.

It also acquired roughly 285 MW of expansions at existing natural gas facilities, providing a cost-effective and timely solution to Ontario’s immediate reliability needs. Natural gas will be necessary as a transitional resource to help maintain reliability as Ontario grows its storage fleet. The important operability characteristics of gas must remain available to Ontario’s power system as no like-for-like replacement is yet available. These procurements therefore strike the right balance between ensuring system reliability and setting the stage for the ongoing energy transformation. See the E-LT1 RFP Results Table.

The IESO’s Same Technology Upgrades Solicitation secured agreements with seven natural gas facilities for enhancements to existing equipment, which in total will provide 286 MW incremental capacity to Ontario’s system by mid-decade. See the Results Table.

Energy storage will be a key enabler in meeting Ontario’s future needs, and the Long-Term RFP, launching this fall, will build on these results, completing Ontario’s overall procurement of approximately 2,500 MW of storage that will be online/in-service toward the end of the decade.

More information is available in the IESO's June 2023 Resource Adequacy Update.

Same Technology Upgrades Solicitation Final Documents

Same Technology Upgrades Solicitation Archived Documents

LT1 RFQ

LT1 RFQ Documents