Skip Links
Sector Participants > Engagement Initiatives > Engagements > Pathways to Decarbonization

Pathways to Decarbonization

Sector Evolution

The Pathways to Decarbonization study is in response to the the Minister’s October 7, 2021 letter requesting that the IESO evaluate a moratorium on the procurement of new natural gas generating stations in this decade (reliability, cost, environmental considerations) and develop an achievable pathway to phase out natural gas generation and achieve zero emissions in the electricity sector that considers:

  • Reliability
  • Cost/affordability
  • Timeline
  • Impact on broader electrification of the economy
  • Low emission fuels for thermal generation
  • Storage combined with non-emitting resources
  • New technologies

The IESO will engage with stakeholders on the study approach to inform the development of achievable pathways to zero emissions in the electricity sector. The IESO will provide transparency around the assumptions that will be used in the analysis, and seek feedback (based on technical research) on key assumptions. This feedback will be used to ensure that stakeholder input will inform the IESO’s report back to the Ministry in Q4 2022.

The IESO encourages stakeholders and particularly environmental organizations, municipalities, and consumers to stay informed and participate in this engagement. To be added to the email list for communications related to this engagement or to submit comments and enquiries, please email engagement@ieso.ca.

Related Information

Draft Engagement Plan

Schedule of Activities

Date Engagement Activity Expected Actions

November 24, 2022

Timing of Pathways to Decarbonization Study, Annual Planning Outlook, and Conservation and Demand Management Framework Mid-Term Review

 

October 7, 2022

New IESO Procurement Advice: Shift to Grid-Scale Storage While Relying on Natural Gas Expansions in the Near-Term

 

July 19, 2022

Updated Assumptions based on Stakeholder Feedback

 

March 24, 2022

Discuss the IESO's approach to its Operability Assessment as part of the Pathways to Decarbonization study.

Recorded Presentation

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

March 16, 2022

Feedback is due on the February 24 webinar topics, including the preliminary assumptions to be used in the development of the pathways study.

Assumptions for Feedback

July 19, 2022: Updated Assumptions based on Stakeholder Feedback

Feedback form

Feedback Received:

July 19, 2022: IESO Response to Feedback

In addition to the feedback on the Pathways to Decarbonization Assumptions posted above, the IESO received non-assumption related comments from residents regarding Ontario’s decarbonization goals in general. Though out of scope for this engagement and the request for feedback on the study assumptions posted on March 16, the IESO appreciates the interest and feedback received.

 

February 24, 2022

An update on the approach to inform the development of achievable pathways to decarbonization in the electricity sector. The IESO will provide transparency around the assumptions that will be used in the analysis, and seek feedback (based on technical research) on key assumptions.

Recorded Presentation

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

February 3, 2022

Launch of engagement

Communication