Purpose

The AESO will host a closed, facilitated, in-person only working session on August 20, 2026, to give stakeholders an opportunity to work together toward a recommended TRP Base Rate for filing with the Alberta Utilities Commission (AUC).

Because this is a working session intended for a focused group of directly affected stakeholders, attendance will be limited. Stakeholders who wish to attend must complete the Interest to Participate. The AESO will use those confidential responses to identify participants who are directly and materially affected by the TRP Base Rate and can contribute relevant expertise, data, or experience to the discussion. The AESO will review all submissions and confirm attendance approximately one week before the session.

Participants should be prepared to discuss how candidate TRP Base Rates could affect their organization, projects, customers, cost recovery, investment decisions, or other directly impacted interests. The session will focus on constructive discussion and collaboration toward a recommended outcome.

Due to the restricted participation and working nature of the session, there will be no virtual component and no session recording. A high-level, non-attributable summary of discussions will be included in the AESO’s application to the AUC for public consumption.

To support your responses, you may refer to PDF pages 43 – 50 from the April TRP stakeholder sessions.

Instructions

1. This feedback is open to all industry stakeholders.
2. Download the Interest to Participate document.
3. Please respond to all seven questions as indicated.
4. Only one completed feedback form will be accepted per organization.
5. To upload your completed feedback form, click on the "Submit interest to participate".

All responses are due by August 7, 2026, and will not be shared on AESO Engage, but used for session planning purposes. If you have any questions, please email stakeholder.relations@aeso.ca.  

Stakeholder Questions

Responses will be kept confidential and used by AESO to support participant selection and session planning. Answers to questions 1-4 will be used to determine participation in the session, and answers to questions 5-7 will be used for session planning.

1. What industry or stakeholder interest would you primarily represent for the purposes of this session? (Choose all that apply)

• Academia
• Consumer
• Distribution Facility Owner (DFO)
• Generation (thermal or diversified fuel mix)
• Government body
• Load (large or industrial)
• Renewable
• Retail
• Storage
• Transmission Facility Owner (TFO)
• Consulting (please provide the organization you are representing)
• Other (please provide details)

2. Does your organization intend to advocate for a specific TRP Base Rate during the session? (Choose one)

• Yes
• No
• Undecided

3. In what ways would your organization be directly and materially affected by the TRP Base Rate? (Choose all that apply)

• Existing operating assets
• Projects in development
• Projects seeking interconnection
• Future investment decisions
• Customer rates/costs
• Transmission cost recovery
• Indigenous/community-owned projects
• None of the above
• Other

      If you chose “Other”, please provide details.

4. To what extent could the TRP Base Rate influence your organization’s future investment, siting, connection, or development decisions? (Choose one)

• Significantly influence
• Moderately influence
• Minor influence
• No influence
• Not applicable / unsure

      Please provide rationale for your response

5. What is the highest TRP Base Rate, expressed in $/MW, that your organization could support for filing with the AUC? Please provide supporting rationale.

6. What is the lowest TRP Base Rate, expressed in $/MW, that your organization believes would still achieve the intended objectives of TRP? Please provide supporting rationale.

7. Describe how different TRP Base Rate levels could materially affect your organization’s operations, including any impacts to existing assets, planned projects, cost recovery, customer costs, or investment decisions.

We invite stakeholders to provide their feedback following the stakeholder sessions held on April 15 & 16, 2026 via the following stakeholder feedback form by end of day May 1. Thank you for your input.

To make it easier to provide input, we have combined feedback for both engagement workstreams into a single request. You only need to submit your feedback once. All feedback received will be reviewed and considered for both workstreams. You may refer to the stakeholder presentation to assist with your responses.

Instructions

1. This feedback is open to all industry stakeholders.
2. Please fill out the sections below as indicated.
3. Only one completed feedback form will be accepted per organization.
4. To upload your completed feedback form:
   • You will need to be registered and signed in on the AESO Engage platform; and
   • You will need to be on either the TRP & Supply SAS page, or the Amendments for the Connection Process page, which can be found on the AESO website at www.aeso.ca and follow the path: AESO Engage (found on very top navigation bar) > ISO Tariff Hub.; and
   • Click on the "Submit your feedback here" box to upload your completed feedback form.
5. All responses are due by May 1, 2026, and will be shared on AESO Engage in their original format. If you have any questions, please email stakeholder.relations@aeso.ca

Stakeholder Questions

Determining TRP Base Rate

Further to the April 15, 2026, discussion, we are seeking your input on how the AESO should engage with industry to develop an acceptable TRP Base Rate ($/MW).  For example, preferences could include (bur are not limited to) discussion forums, facilitated workshops, confidential submissions, or a combination of approaches.

1. What engagement format would your organization prefer for this work, and why? 

STS Contract Capacity

The AESO has proposed to apply the TRP rate to STS contracted levels. Following the October 2025 TRP session, the AESO requested feedback on what STS contract capacity should be based on, and what the consequences should be for going over STS. Further to the April 15, 2026, conversation, we want to hear your thoughts on those same questions, but for the perspectives of transmission connected suppliers; distribution connected suppliers; and sites that consume some of the produced energy on-site (for example, for on-site load processes, to charge energy storage, etc.)

2. What should STS contract capacity be based on?

3. What should the consequences be for going over STS contract capacity and what should that threshold be for going over (i.e. once in a year, 5% of time, over by a certain amount, etc.)

Proposed TRP Implementation

4. Do you have comments on the AESO’s proposed implementation of TRP? Please provide details.

Commitment Charge

5. Do you have comments on the commitment charge, including the conditions for refunds? Please provide details.

Transition Plan for In-Flight Projects

6. Do you have comments on the AESO's transition plan for in-flight projects? Please provide details.

Additional Feedback on the proposed Amendments for the Connection Process?

7. Do you have additional feedback specific to:

• Proposed TRP Implementation
• Commitment Charge; or
• Transition Plan for In-flight Projects?

Please provide details.

Purpose

Following stakeholder discussions during the October 22 & 23 TRP & Amendments for the AESO Connection Process workshops, we invite interested stakeholders to provide comments by November 26, 2025.

Instructions

1. To submit your responses, you will need to be registered and signed in on the AESO Engage platform. 
2. Please click on the "Submit Feedback Here" box below to begin the survey and provide your specific comments. 
3. Please submit one completed survey per organization. 
4. All responses will be shared on AESO Engage. 
5. Responses are due by Nov. 26, 2025.

Feedback Questions

TRP Base Rate

The following questions are about TRP base rate options. Please provide rationale for your responses.

1. Certain base rate options like using the last approved NID or the near-term portfolio from OTP/LTP may lead to large variability in the base rate. Given the AESO’s preference to update the base rate prior to every Cluster, how important is it to have a stable or more consistent base rate between Clusters?

TRP Rate Formula Scalars

The AESO presented a TRP Rate formula that included individual scalars as percentages that would then be multiplied together. The following questions are related to the scalars used. Please provide rationale for your responses.

2. For the technical characteristics scalar, the AESO presented a demand for transmission capacity option based on the correlation between generation output by technology type and generation output of the planning area (based on flows onto the transmission system). How would you do this calculation differently, and why? 

3. How important is it for the base rate to accurately reflect future transmission reinforcement costs as opposed to historical or average costs? 

4. Is your preference to use individual scalars, a single weighted average scalar or something else entirely? 

5. Is it appropriate for the scalars to go to 0%? If no, what would you suggest as a minimum level? 

6. Should the AESO consider different or multiple TRP rates within a Cluster that reflects the changing available capacity in an area if multiple projects are proposing to connect at that same location? If yes, how should the AESO decide who gets the lower rate?

Rate STS

The following questions are about Rate STS. Please provide rationale for your responses.

7. What should STS contract capacity be based on—expected flow, maximum flow, or something else?

8. What should the consequences be for going over STS contract capacity, and what should that threshold be for going over (i.e., once in a year, 5% of time, over by a certain amount, etc.)?

Purpose

During Sprint 1 of OTP & TRP, we received some feedback that stakeholders had a better understanding of OTP, which shifted their TRP perspectives and how it integrates with OTP. Therefore, we invite those wanting to provide supplemental TRP written feedback to do so by May 30. This information will assist us in the development of options and materials for the second Sprint at the end of June.

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 "Complete Stakeholder Feedback" box below to provide your specific comments.
3. Please submit one Stakeholder Feedback per organization.
4. Stakeholder Feedback results will be posted on AESO Engage, in their original state.
5. Responses due on or before May 30, 2025.

Questions

1. Do you have any supplemental feedback on the integration of TRP into OTP?
2. If you wish to provide a formatted version of your response, please do so here.

Purpose

The AESO has identified guidelines and questions for stakeholders to consider and respond to, following the posting of Stakeholder Alternative Framework Proposals, which support further OTP framework design development through meaningful engagement. We value stakeholder input and invite all interested parties to provide their Stakeholder Alternative Framework Proposals feedback via the following form by May 30, 2025. Please provide specific examples with your responses.

Instructions

1. Please fill out the sections below as indicated
2. Only one completed feedback form will be accepted per stakeholder
3. To upload your completed feedback form you will need to be registered and signed in on the AESO Engage platform
4. When completed, click on the "Submit Stakeholder Feedback" box below to upload your completed feedback form
5. All responses will be shared on AESO Engage in their original format (responses due May 30, 2025)

Purpose

An important piece of the first sprint, which will run from May 12 - 15, 2025, will be to hear stakeholders' perspectives and proposals on what they think the OTP & TRP framework could look like.

The intent of these presentations is to broaden the initial starting points and hear different points of view, help identify misalignment early and collaboratively shape the OTP/TRP design.

Proposal Parameters

All proposals must align with the OTP engagement development objective and adhere to its principles. Specifically, each proposal should:

1. Demonstrate alignment with the OTP Framework's Objective & Principles

All proposals should demonstrate how the alternative supports in the development of economically-efficient transmission projects.

Your stated assumptions on the role of TRP within the framework.

2. Promote Transparency

All presentations should clearly outline all methods, assumptions, and rationale leveraged in its development.

All assumptions used in the proposal's design or assessment should be consistent with those already established within REM and other AESO initiatives

3. Ensure Reasonable Implementation

Topics and perspectives presented should be compatible, functionally aligned, and feasible with the REM and other initiatives that work within the Alberta Market. 

Instructions

1. Stakeholder proposals are limited to 30-minutes of presenting and 15 minutes Q&A.
   
2. You have the opportunity to bring a subject matter expert from your organization to assist with presenting your proposal.
3. To submit your proposal, you will need to be registered and signed in on the AESO Engage platform. 
4. Click on the "Submit Stakeholder Proposal" box below to submit proposals. 
5. One proposal per organization.
6. All proposals will be shared on AESO Engage (unless otherwise requested).
7. Proposals are due on or before May 5, 2025.