Ancillary Services Cost Allocation

Important Dates & Materials

Postponed | October 21 - 22 | AS Cost Allocation Workshop

September 17 - October 10 | Discussion Board open


Oct. 8, 2025 | Stakeholder Update

Following the release of the addendum to FFR+ rationale document and received stakeholder feedback, the AESO is considering concepts and associated designs for procuring FFR. The workshop scheduled for October 21–22 is postponed in favour of a more productive session on cost causation and recovery once design decisions are made.

Note that we have closed the associated discussion forum and will re-open it when a new date for the workshop is announced.

Those who have registered will receive a cancellation notice by email. We apologize for any inconvenience and appreciate your understanding.


Engagement Schedule (Updated September 3, 2025)


Discussion Board | September 17 - October 8, 2025

We have paused the collection of input on this Discussion Board until a new date for the AS Cost Allocation Workshop is announced.

This discussion will help inform a future session. We’ve posted a few questions to guide the conversation, but welcome any additional comments, questions, or perspectives you’d like to share. Your input will help support the development of cost allocation methodologies for frequency response services.

How to use this Tool

Things To Keep in Mind

This public forum serves as a collaborative space where stakeholders can share and discuss their thoughts, suggestions, and creative solutions in a respectful and constructive way. This ensures that everyone's contributions are valuable and that the board remains a positive and inclusive space for dialogue and innovation.

Important Dates & Materials

Postponed | October 21 - 22 | AS Cost Allocation Workshop

September 17 - October 10 | Discussion Board open


Oct. 8, 2025 | Stakeholder Update

Following the release of the addendum to FFR+ rationale document and received stakeholder feedback, the AESO is considering concepts and associated designs for procuring FFR. The workshop scheduled for October 21–22 is postponed in favour of a more productive session on cost causation and recovery once design decisions are made.

Note that we have closed the associated discussion forum and will re-open it when a new date for the workshop is announced.

Those who have registered will receive a cancellation notice by email. We apologize for any inconvenience and appreciate your understanding.


Engagement Schedule (Updated September 3, 2025)


Discussion Board | September 17 - October 8, 2025

We have paused the collection of input on this Discussion Board until a new date for the AS Cost Allocation Workshop is announced.

This discussion will help inform a future session. We’ve posted a few questions to guide the conversation, but welcome any additional comments, questions, or perspectives you’d like to share. Your input will help support the development of cost allocation methodologies for frequency response services.

How to use this Tool

Things To Keep in Mind

This public forum serves as a collaborative space where stakeholders can share and discuss their thoughts, suggestions, and creative solutions in a respectful and constructive way. This ensures that everyone's contributions are valuable and that the board remains a positive and inclusive space for dialogue and innovation.

  • CLOSED: This survey has concluded.

    Purpose

    We are inviting stakeholders to share their cost allocation proposals for the discussion at REM Design Finalization Week 2 (DF2) March 18 - 21, 2025. We will be discussing any proposals received at DF2. Additional insights can be shared by March 31, 2025.

    Instructions

    1. To submit your feedback, you will need to be registered and signed in on the AESO Engage platform.
    2. Please click on the "Submit Your Insights Here" box below to provide your specific comments.
    3. You have the ability to submit multiple times.
    4. Stakeholder Feedback results will be posted on AESO Engage, in their original state.
    5. Responses due by March 31, 2025.

    Stakeholder Questions

    1. If you have considered what cost allocation might look like for the new REM Ancillary Services products (R10, R60 and DAC), please provide those insights here. Submissions received prior to REM Design Finalization Session 2 (DF2) may be highlighted there.
    2. If you have done any studies or prepared any research on these topics, please attach here.


Page last updated: 17 Oct 2025, 02:21 PM