Amendments for the AESO Connection Process

Important Materials & Key Dates

November 20 | Stakeholder feedback due

October 20 | TRP & Amendments for the AESO Connection Process Workshop Presentation posted

  • October 27 | "Immediate Next Steps" slide updated

Engagement Schedule

(updated September 5, 2025)

Purpose

To make required changes to the Tariff to align with the current AESO Connection Process, provide clarity where needed and enable a more efficient process. We will not be making significant changes to the AESO Connection Process as part of this engagement.

This engagement process will review the following ISO tariff components:

  • System Access Service (SAS) Agreements for Rate DTS and Rate STS
  • Construction Commitment Agreements (CCA) and Security paid to the TFOs
  • Payment in Lieu of Notice (PILON)
  • Overall layout and presentation of content in Sections 3, 5, and 6 of the ISO tariff

Throughout 2022 to 2024, we streamlined the Connection Process by developing the Cluster Assessment Process with robust stakeholder input.

Out of Scope

Although there will be overlap and interdependencies, the below topics/workstreams are out-of-scope and will be covered in other work streams:

  • Existing GUOC provisions, as well as design of the new Transmission Reinforcement Payment (TRP)
  • Ancillary Services cost allocation
  • Transmission cost allocation and contribution policy
  • Internal demand rates

Important Materials & Key Dates

November 20 | Stakeholder feedback due

October 20 | TRP & Amendments for the AESO Connection Process Workshop Presentation posted

  • October 27 | "Immediate Next Steps" slide updated

Engagement Schedule

(updated September 5, 2025)

Purpose

To make required changes to the Tariff to align with the current AESO Connection Process, provide clarity where needed and enable a more efficient process. We will not be making significant changes to the AESO Connection Process as part of this engagement.

This engagement process will review the following ISO tariff components:

  • System Access Service (SAS) Agreements for Rate DTS and Rate STS
  • Construction Commitment Agreements (CCA) and Security paid to the TFOs
  • Payment in Lieu of Notice (PILON)
  • Overall layout and presentation of content in Sections 3, 5, and 6 of the ISO tariff

Throughout 2022 to 2024, we streamlined the Connection Process by developing the Cluster Assessment Process with robust stakeholder input.

Out of Scope

Although there will be overlap and interdependencies, the below topics/workstreams are out-of-scope and will be covered in other work streams:

  • Existing GUOC provisions, as well as design of the new Transmission Reinforcement Payment (TRP)
  • Ancillary Services cost allocation
  • Transmission cost allocation and contribution policy
  • Internal demand rates

  • Written Feedback | Oct. 29 - Nov. 20, 2025

    Purpose

    Following stakeholder discussions during the October 22 & 23 TRP & Amendments for the AESO Connection Process workshops, we have expanded the scope and timing of the feedback request related to the Amendments for the AESO Connection Process workstream. We invite interested stakeholders to provide comments by November 20, 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. 20, 2025.

    Feedback Questions

    Commitment Charge

    The following questions are related to the Commitment Charge as presented during the TRP & Amendments for the AESO Connection Process workshops on Oct. 22 - 23, 2025. Please provide rationale for all your responses.

    1. Do you have comments on the $30,000 / MW charge?

    2. Do you have comments on using the sum of the requested STS and DTS MW to calculate the commitment charge?

    3. Do you prefer cash payment, financial security, or have no preference? (choose all that apply) 

    4. Do you have comments on refunding the commitment charge upon cancellation if AUC approvals are denied?

    5. Do you see any risks or situations (including potential disproportionate impacts on certain project types or market participants) that could arise from the design of the commitment charge and have unintended implications?

    Other Comments

    6. Do you have comments on the Change Charges?

    7. Do you have comments on the proposed changes to the SAS Agreements for Rate STS and DTS? 

    8. Do you have comments on the proposed implementation of TRP in the AESO Connection Process?

    9. Do you have comments on the proposed changes to PILON?

    Submit Feedback Here
  • CLOSED: This consultation has concluded.

    Written Feedback | March 5 - May 27, 2025

    Purpose

    To validate our summary of opportunities to improve the ISO tariff is comprehensive and nothing is missing or out of line with what stakeholders are experiencing. All stakeholder feedback we receive will be shared as received, and we will publish a directional summary after all feedback has been reviewed. If any topics require more detailed information, discussion or context, additional phases of consultation may be added.

    Instructions

    1. Watch the narrated presentation. 
      • Please view the slides in Presentation or Slide Show mode and turn on your speakers to listen to the voice-over narration
    2. To submit your responses, you will need to be registered and signed in on the AESO Engage platform. 
    3. Please click on the "Submit Stakeholder Feedback" box below to begin the survey and provide your specific comments. 
    4. Please submit one completed survey per organization. 
    5. All responses will be shared on AESO Engage. 
    6. Responses are due on or before May 27, 2025.

    Stakeholder Questions

     System Access Service (SAS) Agreements

    1. Are there aspects of the system access service agreements for Rate DTS and Rate STS that require clarification or amendment?
    2. Are obligations for an executed vs. effective system access service agreement clear?

    Payment In Lieu Of Notice (PILON)

    1. Are there aspects of PILON that require clarification or amendment?
    2. Should PILON apply to active projects that have signed a SAS agreement for Rate DTS and then cancel or delay the contract capacity start date?

    Construction Commitment Agreement (CCA) and Security with TFOs

    1. Are there aspects of the CCA or TFO security that require clarification or amendment?
    2. What benefits are gained by including the CCA and TFO security requirements in the ISO tariff?  

    Other Provisions

    1. Are there any provisions in Sections 3, 5, or 6 that require clarity or amendment, or should be added or removed?
Page last updated: 28 Oct 2025, 07:41 PM