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.
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
To submit your feedback, you will need to be registered and signed in on the AESO Engage platform.
Please click on the "Submit Your Insights Here" box below to provide your specific comments.
You have the ability to submit multiple times.
Stakeholder Feedback results will be posted on AESO Engage, in their original state.
Responses due by March 31, 2025.
Stakeholder Questions
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.
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
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Level of Engagement
Consult: Gather input and feedback from stakeholders
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March 5, 2025 ISO Tariff Redesign Workstreams Kick-off Information Session
Lifecycle
ISO Tariff Redesign Kick-off Information Session | Mar. 5, 2025
Ancillary Services Cost Allocation has finished this stage
Phase 1 | March - June, 2025
Ancillary Services Cost Allocation has finished this stage
REM AS discussion with previous REM Design Sprint participants: We will be participating in the REM Design Finalization Sessions (weeks of March 17 and June 17, 2025) to address Ancillary Services Cost Allocation for REM products. Interested stakeholders can provide their insights for discussion at REM DF2 with an opportunity to provide further suggestions by March 31, 2025.
There will be an opportunity for the broader stakeholder group to listen into these sessions to learn.
Phase 2 | Sept. - Dec. 2025
Ancillary Services Cost Allocation is currently at this stage
Broad stakeholder engagement on Ancillary Services Cost Allocation: We will provide stakeholders with requested studies and a jurisdictional scan. We will also present a starting point for principles, option for cost allocation and cost recovery mechanism and solicit stakeholders' ideas on same. Interested stakeholders will be asked to provide their alternatives for principles.
The AESO will develop more focused workshops with interested stakeholders to discuss their alternatives and share learnings with the broader stakeholder group.
Early 2026
this is an upcoming stage for Ancillary Services Cost Allocation
Stakeholder review of proposed options: The AESO will provide outcomes of the workshops hosted in phase 2, as well as the options that resulted from these. Stakeholder feedback will be requested on these options. Taking this feedback into consideration, we will develop a "recommended option" and allow stakeholders another opportunity for comments.
The AESO will take this feedback into consideration as it develops its Ancillary Services Cost Allocation AUC Application.
AUC Application | Q1 - Q3, 2026
this is an upcoming stage for Ancillary Services Cost Allocation