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    ISO rules

    As Alberta’s ISO, we have the authority to make ISO rules in accordance with Section 20 of the Electric Utilities Act.

    The ISO rules facilitate the safe, reliable and economic operation of the Alberta Interconnected Electric System and promote a fair, efficient and openly competitive wholesale market for electricity in Alberta.

    The Electric Utilities Act requires electricity market participants to comply with the ISO rules. We comply with the ISO rules, and are also responsible for monitoring market participant compliance with ISO rules.

    Stakeholder engagement

    When necessary, we create new ISO rules, or amend or remove existing ISO rules. When developing ISO rule changes, we may undertake a stakeholder engagement process before following the requirements set out in Alberta Utilities Commission (AUC) Rule 017, Procedures and Process for Development of ISO Rules and Filing of ISO Rules with the Alberta Utilities Commission. All new and amended ISO rules are filed with the AUC.

    Learn about our AESO principles for stakeholder engagement on ISO rule changes.

    See the current stakeholder engagement opportunities.

    Current ISO rules

    Individual ISO rules

    ‐ Ongoing stakeholder engagement

    ISO rules
    Part 200 - Markets
    Division 208 - Operational Constraints and Outage
    Part 300 - System Reliability and Operations
    Part 400 - Transmission Planning
    Part 500 - Facilities
    Section 9 Transmission

    Operating Policies and Procedures

    The AESO is transitioning Operating Policies and Procedures (OPPs) into ISO rules.

    OPP Title Effective
    600 Outage Planning, Commissioning and Testing  
    601 Transmission Outage Coordination 2014-07-02
    800 Emergency System Operations  
    804 Off-Nominal Frequency Load Shedding and Restoration 2008-11-13
    806 Reliability Directives 2012-07-10
    1300 Reporting  
    1304 System Event Monitoring and Disturbance Reporting 2016‑08‑30

    Technical requirements

    The AESO is transitioning the technical requirements into ISO rules. Read the technical requirements.