Hybrid Integration Project

The related Enabling Resources initiative will produce an integrated plan that will outline the sequencing, timing and scope of activities to be undertaken by the IESO to enable existing electricity resources to provide electricity system services in the renewed Ontario wholesale market that they cannot, or cannot fully, currently provide. Market integration of hybrid storage-generation resources has been identified as a priority project under the umbrella of projects within the Enabling Resources initiative.

This Hybrid Integration Project engagement will identify participation model(s) to enable hybrid resources in the IESO-administered markets (IAMs) and have the capability to support Ontario’s future system needs. The changes will be implemented after the implementation of the Market Renewal Project.

The IESO encourages all interested parties to participate in this engagement. The IESO anticipates that this initiative will be of particular interest to current and prospective market participants and resource developers, specifically storage, wind and solar. To be added to the email list for communications related to this engagement or to submit comments and enquiries, please email engagement@ieso.ca.

Schedule of Activities

Anticipated timing for this engagement is presented below.



 Engagement Activity

Expected Actions

Q1 2022

Finalize IESO Hybrid Integration Vision Document


Q4 2021/ Q1 2022

Targeted Grid Innovation Fund call in support of enabling resources solutions (including hybrid research projects)


 Q4 2021

 Stakeholder webinars:

  • Further discussion of participation model(s), as needed.
  • Presentation of draft Hybrid Integration Vision document
  • Presentation of hybrid research work completed as part of ATR Phase 4 program
  • Draft schedule for High Level Design development 

June 22-24, 2021

 Stakeholder webinar:

  • IESO to present participation model(s) and discuss and seek feedback on potential barriers to participation
  • Stakeholder structure (i.e. table of contents) for Hybrid Integration Vision document

May 12, 2021

 Deadline for stakeholder feedback on materials presented at the April 21 webinar.


April 21, 2021

 Engagement webinar:

  • IESO to share and seek feedback on the proposed schedule and scope of activities and draft definitions for co-located and hybrid facilities
  • Presentation
  • Feedback form

Recorded Presentation

This webinar was presented during the IESO's April stakeholder engagement sessions, see full agenda for more information.

April 1, 2021

 Engagement Launched