Evaluation of Most Severe Single Contingency

Purpose

The purpose of this engagement is to inform industry on the Most Severe Single Contingency (MSSC) in Alberta, what it is and its current limits, and to report on the AESO’s recent analyses of the MSSC. The AESO is looking to make a recommendation regarding future MSSC limits based on its analysis and is looking at this engagement to capture suggestions and feedback from industry.

Next steps

The AESO appreciates stakeholders' input and acknowledges the consistent feedback for the AESO to provide a plan or options paper with additional information and analysis before proceeding with a decision on whether to change the MSSC limit in Alberta. The AESO will continue to consult with stakeholders on this initiative and plans to develop and publish an MSSC Options paper on Oct. 13, 2022 and host a virtual information session on Oct. 20, 2022 from 1:00 - 2:30 p.m.

The Options paper will assess and evaluate whether to increase MSSC or maintain the status quo, and all options considered for increasing MSSC, if that is the recommended path forward. The AESO will seek stakeholder written feedback on the Options paper and will host a stakeholder session targeting Q4 2022 to provide stakeholders an opportunity to ask clarifying questions on the Options paper prior to submitting their comments.

We look forward to your continued participation and engagement on this initiative.

Purpose

The purpose of this engagement is to inform industry on the Most Severe Single Contingency (MSSC) in Alberta, what it is and its current limits, and to report on the AESO’s recent analyses of the MSSC. The AESO is looking to make a recommendation regarding future MSSC limits based on its analysis and is looking at this engagement to capture suggestions and feedback from industry.

Next steps

The AESO appreciates stakeholders' input and acknowledges the consistent feedback for the AESO to provide a plan or options paper with additional information and analysis before proceeding with a decision on whether to change the MSSC limit in Alberta. The AESO will continue to consult with stakeholders on this initiative and plans to develop and publish an MSSC Options paper on Oct. 13, 2022 and host a virtual information session on Oct. 20, 2022 from 1:00 - 2:30 p.m.

The Options paper will assess and evaluate whether to increase MSSC or maintain the status quo, and all options considered for increasing MSSC, if that is the recommended path forward. The AESO will seek stakeholder written feedback on the Options paper and will host a stakeholder session targeting Q4 2022 to provide stakeholders an opportunity to ask clarifying questions on the Options paper prior to submitting their comments.

We look forward to your continued participation and engagement on this initiative.

  • Engagement Session 1 | Nov. 4, 2021

    The AESO hosted a virtual stakeholder engagement session on Nov. 4, 2021, from 9 a.m. to 11:30 a.m.

    Purpose

    The purpose of this session was to:

    • Provide stakeholders with a foundational understanding of MSSC
    • Review current limits of MSSC
    • Present the AESO’s analyses of the MSSC options including explaining the AESO’s methodology and assumptions used, and seek stakeholder feedback

    Stakeholder comments

    We value stakeholder feedback and we thank you for sharing your perspectives with us. View all stakeholder comments received on the Evaluation of MSSC in the Submissions section on the right-hand side of the page.

    Engagement session materials

    Can be found in the Materials section on the right-hand side of the page.

  • Information Session 2 | Oct. 20, 2022

    The AESO is providing notice to interested stakeholders to hold the date for an Evaluation of the MSSC Options paper virtual information session on Oct. 20, 2022 from 1:00 p.m. – 2:30 p.m.

    Purpose

    The AESO will be releasing the MSSC Options paper on Oct. 13, 2022. The purpose of the session is to review the Options paper and answer clarifying questions prior to having stakeholders submit written comments.

    Information session materials

    The Options paper will be published on this page on Oct. 13, 2022 and sent out through the stakeholder newsletter.

    Click here to register.

  • Lifecycle Planned Activities | Nov 2021 to Nov 2022

    Engagement Session 1 | Nov. 4, 2021

    Purpose

    • Provide stakeholders with a foundational understanding of MSSC
    • Review current limits of MSSC
    • Present the AESO’s analyses of the MSSC options including explaining the AESO’s methodology and assumptions used, and seek stakeholder feedback

    Information Session 2 | Oct. 20, 2022

    Purpose

    • Review Options paper
    • Answer clarifying questions
    • Outline next steps for stakeholder feedback

    Planned Activities 2022

    Targets

    • Provide high-level overview of stakeholder feedback received and post (February)
    • Develop next steps and post (February)
    • Stakeholder feedback gathered will be further reviewed and considered as the AESO develops an Options paper (March to August)
    • Post Options paper (October)
    • Host a stakeholder session on the Options paper (October)
    • Seek stakeholder input on Options paper (October-November)
Page last updated: 29 Sep 2022, 10:04 AM