Reliability Requirements Roadmap

Key Dates

The AESO 2025 Reliability Requirements Roadmap (2025 Roadmap) is scheduled for publication on August 1, 2025. Stay tuned for confirmation in the AESO's weekly Stakeholder Newsletter once the 2025 Roadmap is available. To provide an overview of the roadmap, a Stakeholder Information Session is planned for September 2025.

Introduction and Purpose

The AESO 2023 Reliability Requirements Roadmap (R3) defines three key areas of reliability — Frequency Stability, System Strength and Flexibility Capability — and includes descriptions of each issue, the degree of mitigation urgency, key findings from reliability assessments, and action plans. The 2025 AESO Reliability Requirements Roadmap, which is aligned with the Restructured Energy Market, will provide an update on actions taken, as well as new priorities and action plans.

Key Dates

The AESO 2025 Reliability Requirements Roadmap (2025 Roadmap) is scheduled for publication on August 1, 2025. Stay tuned for confirmation in the AESO's weekly Stakeholder Newsletter once the 2025 Roadmap is available. To provide an overview of the roadmap, a Stakeholder Information Session is planned for September 2025.

Introduction and Purpose

The AESO 2023 Reliability Requirements Roadmap (R3) defines three key areas of reliability — Frequency Stability, System Strength and Flexibility Capability — and includes descriptions of each issue, the degree of mitigation urgency, key findings from reliability assessments, and action plans. The 2025 AESO Reliability Requirements Roadmap, which is aligned with the Restructured Energy Market, will provide an update on actions taken, as well as new priorities and action plans.

  • CLOSED: This survey has concluded. Thank you for participating.

    Purpose

    The AESO is seeking the participation of Legal Owners and Operators of Generating Facilities to help assess equipment limitations, protection settings, and risks associated with RoCoF events during system-wide frequency changes. Accurate data from all generating facilities is critical to defining these risks and ensuring the reliability of the Alberta Interconnected Electric System (AIES). The AESO previously requested participation in the survey in December 2024; however, due to limited response, we are again requested your prompt participation to enable the AESO to fulfill our mandate for system reliability.

    Action Required

    • Complete all sections of the RoCoF survey form (available for download below, or under AESO Materials).
    • Submit one comprehensive form per organization, including all generators owned.
    • Provide the required data and records in accordance with ISO Rules, Section 503.21, Subsection 6(1) to 6(3).

    Deadline

    Appreciation

    The AESO appreciates your continued cooperation and support in this important initiative. Your efforts contribute to the ongoing reliability of the provincial electricity system.

    If you require assistance or have questions, please contact brad.coleman@aeso.ca or remy.okonkwo@aeso.ca

    Materials

    Download the RoCoF Stakeholder Survey here. The survey and additional information are also available under AESO Materials.


Page last updated: 21 Jul 2025, 03:27 PM