Reliability Requirements Roadmap

Important Dates & Materials

Aug. 15 | 2025 Reliability Requirements Roadmap Published

Sept. 16 | Stakeholder Information Session (Registration opens on Aug. 20)

Introduction and Purpose

The purpose of the AESO 2025 Reliability Requirements Roadmap (2025 Roadmap) is to identify reliability requirements to sustain and improve the operational reliability of Alberta's electric system. The 2025 Roadmap sets out plans addressing three critical areas—System Strength and Stability, Flexibility and Balancing, and Frequency Response and Stability. The AESO has made significant progress since the publication of the 2023 Reliability Requirements Roadmap in several areas critical to ensuring operational reliability, which are outlined in the 2025 Roadmap. An update is provided on the decisive action we're taking to address growing reliability challenges, ensuring the grid remains reliable and capable of supporting the evolving energy landscape.

The 2025 AESO Reliability Requirements Roadmap is aligned with the Restructured Energy Market (REM) and highlights new priorities and action plans..

Important Dates & Materials

Aug. 15 | 2025 Reliability Requirements Roadmap Published

Sept. 16 | Stakeholder Information Session (Registration opens on Aug. 20)

Introduction and Purpose

The purpose of the AESO 2025 Reliability Requirements Roadmap (2025 Roadmap) is to identify reliability requirements to sustain and improve the operational reliability of Alberta's electric system. The 2025 Roadmap sets out plans addressing three critical areas—System Strength and Stability, Flexibility and Balancing, and Frequency Response and Stability. The AESO has made significant progress since the publication of the 2023 Reliability Requirements Roadmap in several areas critical to ensuring operational reliability, which are outlined in the 2025 Roadmap. An update is provided on the decisive action we're taking to address growing reliability challenges, ensuring the grid remains reliable and capable of supporting the evolving energy landscape.

The 2025 AESO Reliability Requirements Roadmap is aligned with the Restructured Energy Market (REM) and highlights new priorities and action plans..

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

    Rate of Change of Frequency (ROCOF) Stakeholder Survey | Due June 21, 2025

    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: 15 Aug 2025, 05:17 PM