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  • ISO Tariff
  • ISO Tariff Redesign

Related Projects

Live Projects

  • REM Technical Design

    Important Dates & Materials

    September 5 | REM ISO Rules Engagement information

    August 27 | Materials posted

    • REM Final Design
    • R30 Demand Curve Workbook and Instructions
    • MPA Assessment of Creditor...
  • Amendments for the AESO Connection Process

    Important Materials & Key Dates

    December 16 | Engagement Schedule updated

    November 24 | Consolidated feedback posted

    November 10 | October 22&23 Workshop Summary posted

    October 20 | TRP &...

  • Ancillary Services Cost Allocation

    Important Dates & Materials

    December 16 | Engagement Schedule updated

    Postponed | October 21 - 22 | AS Cost Allocation Workshop

    September 17 - October 10 | Discussion Board open

    ...
  • Internal Demand Rates

    Important Materials & Dates

    Nov. 17 | Materials posted

    • AESO Cover Letter - Interim Draft Study Reports
    • Cost of Service Studies Executive Summary
    • Cost of Service Studies Interim Draft Report
    • ...
  • TRP & Supply SAS

    Important Dates & Materials

    December 16 | Engagement Schedule updated

    December 1 | TRP Methodology & Supply SAS Stakeholder Feedback posted

    November 10 | Oct 22&23 Workshop Summary posted

    October...

  • Tariff Connection Obligations

    Important Dates

    February 2026 | Publication of Initial Materials

    December 16, 2025 | Engagement Schedule updated

    Purpose

    The AESO is reviewing the responsibilities of both market participants and the AESO...

  • Engagement Plan

    Important Information

    November 4, 2025 | Updated 2025 & 2026 Engagement Plan posted


    Purpose

    To improve transparency and facilitate stakeholder participation, the AESO is sharing its roadmap of planned engagement...

Archived Projects

  • Tariff Evolution Roundtable & World Cafe

    Engagement Outcomes

    We thank all stakeholders for their significant contributions to this initiative. Following this, the AESO initiated the "Energy Storage Working Group", who successfully dealt with Rate...

  • DOS Engagement (formerly the Energy Storage Tariff Working Group)

    Engagement Outcomes

    In Decision 28989-D01-2024, dated July 31, 2024, the AUC approved the AESO's application. Rate DOS and related amendments to the ISO tariff and definitions will come into effect...

  • ISO Tariff Redesign Pre-Engagement

    Pre-engagement Outcome

    We thank all stakeholders for providing their valuable input on our Discussion Board. We have put together a Pre-engagement Directional Summary, and will provide more insight at...

  • ISO Tariff Redesign Repository

    Purpose

    We have developed this project page as a repository for historical information, Alberta Utilities Commission (AUC) Decisions, exhibits and more as deemed relevant by the AESO and requested by...