Forecasting and Planning
The Ontario energy market is emerging from a sustained period of surplus conditions, and is beginning to see a capacity need take shape. With supply conditions tightening, the IESO sees an opportunity to review and challenge the existing thinking and approach to adequacy assessments. There is a balance to be struck between being appropriately conservative in the approach, while also considering value to ratepayers. This review effort will entail examining the specific areas mentioned with the NPCC Reliability Standard, Directory 1 (Design and Operation of the Bulk Power System).
Through this engagement, the IESO will provide stakeholders with information on our internal review of planning assumptions related to resource adequacy. The engagement will outline how the IESO meets Reliability Standards, and identify areas where we may have an opportunity to reconsider our assumptions. As an initial step of this review, the IESO proposes two areas of discussion: 1) evaluate the appropriate level of non-firm imports to be used in the resource adequacy analysis, and 2) examine generator contingency allowances to ensure they are appropriate for today’s fleet.
Stakeholders are invited to provide feedback on the areas to prioritize, as well as on the methodology and assumptions. We would also like to understand the potential impacts of the proposed changes on participant’s businesses (outage planning, investment decisions, etc.). All comments and enquiries on this engagement can be directed to engagement@ieso.ca.
Date |
Materials |
Expected Actions |
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April 9, 2021 |
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January 18, 2021 |
IESO is seeking feedback from participants on the proposed methodology and approach with respect to intertie support (non-firm imports).
April 9, 2021: IESO Response to feedback received |
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December 14, 2020
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In this webinar, the IESO will discuss stakeholder feedback received following the August meeting and present the proposed non-firm import methodology. |
Recorded Presentation
This webinar is being presented during the IESO's December stakeholder engagement sessions, see full agenda for more information. |
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September 16, 2020
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IESO is seeking feedback from participants on the areas to prioritize, the methodology and assumptions, as well as the potential impacts of the proposed changes on participant’s businesses (outage planning, investment decisions, etc.). |
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August 26, 2020
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Webinar In this webinar the IESO will provide information on our internal review of planning assumptions related to resource adequacy.The IESO has identified areas where there may be opportunities to ensure reliability more cost-effectively. The engagement will provide stakeholders with an overview of the assumptions that feed our assessments, along with options to meet standards while balancing system costs, and will seek feedback on the methodology/assumptions. |
This webinar is being presented during the IESO's August stakeholder engagement meetings. See agenda for more information. |
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August 6, 2020
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Engagement launched
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