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    2022 Tariff Modernization Application

    Recent materials posted

    Purpose and intention

    This 2022 Tariff Modernization Application is intended to propose revisions to the terms and conditions of the ISO tariff to better align with, and to provide stakeholders with clarity regarding existing AESO practices and process regarding system access service requests. The application is also intended to propose a structural change to the compensation formula that exists for the provision of conscripted transmission must-run (TMR) service in Section 8 of the ISO tariff, Ancillary Services, so that generators can be compensated for emissions compliance costs associated with the provision of conscripted TMR service. The application is also intended to speak to outstanding directions issued by the Alberta Utilities Commission in Decision 22942-D02-2019 regarding the AESO's 2018 comprehensive ISO tariff application.

    Scope of application

    The proposed scope of the 2022 Tariff Modernization Application is intended to consist mainly of administrative and non-structural changes to the ISO tariff with the exception of a proposed structural change in Section 8. The proposed scope includes:

    1. Definitional updates
      • Updated ISO tariff definition of “radial circuit”
      • New ISO tariff definitions: “system transmission facilities” and “permit and licence”
    2. Revisions to ISO tariff Terms and Conditions to align and to add clarity to:
      • Section 3, System Access Service Requests
      • Section 4, Classification and Allocation of Connection Project Costs
      • Section 5, Changes to System Access Service
      • Section 6, Financial Obligations for Connection Projects
      • Section 7, Generating Unit Owner’s Contribution
      • Section 8, Ancillary Services
      • Section 10, Settlement and Payment Terms
      • Construction Commitment, Rates DTS and STS pro forma agreements
    3. Speak to directions outstanding from AUC Decision 22942-D02-2019

    Request for feedback

    We value stakeholder input, and we invite all interested stakeholders to provide their written feedback on the AESO's proposed application via the questions set out in the Stakeholder Comment Matrix - Tariff Modernization Application and Stakeholder Comment Matrix - Definitions on or before Oct. 7, 2022.

    2022 Tariff Modernization Application materials

    If you have any other questions, please contact and subscribe to our stakeholder newsletter for updates.