Internal Demand Rates

Important Dates

July - August, 2025 | 1-on-1 confidential interviews for the Benefit of Service Study

July 9, 2025 | Consultant Information posted

June 4, 2025 | Consolidated stakeholder feedback on Draft Hypothesis Statements posted (directional summary to follow)

Purpose

To determine how current rates for demand are (or are not) fulfilling performance expectations now or in the future and, with robust stakeholder input, design solutions that address prioritized deficiencies.

Scope

The following topics are in scope for this engagement:

  • Rate class review (including self-supply, large load, and non-firm rates)
  • Rate Demand Transmission Service (DTS) performance and potential redesign
  • Rate Demand Opportunity Service (DOS) performance review

Although there will be overlap and interdependencies, the below topics are out of scope and will either be covered in other workstreams, or are being discussed as part of standalone engagements:

  • Point of Delivery (POD) Charges – classification, allocation, and rate design
  • Ancillary Service products, services, and associated fees
  • Optimal Transmission Planning (OTP)
  • Restructured Energy Market (REM)

Engagement Schedule


Background

The Electric Utilities Act (EUA) requires the AESO to submit a tariff for AUC approval. The AUC has directed the AESO to refile its Bulk & Regional Tariff Design by January 31, 2027. Parties are encouraged to review documents from AUC Proceeding 26911, the last Bulk & regional Tariff application, with a particular emphasis on the Commission's decision and parties' evidentiary submissions.

With respect to Rate DOS, parties are encouraged to review Decision 28989-D02-2024.

Given recent amendments to the EUA, anticipated updates to the government’s Transmission Regulation, and the ongoing grid transformation, a fulsome review of Rate DTS is necessary. The AESO expects that revisions to the tariff will need to incorporate these new policy directions, recover the AESO's revenue requirements, and adhere to other rate design principles and strategic objectives to the greatest extent possible.

Important Dates

July - August, 2025 | 1-on-1 confidential interviews for the Benefit of Service Study

July 9, 2025 | Consultant Information posted

June 4, 2025 | Consolidated stakeholder feedback on Draft Hypothesis Statements posted (directional summary to follow)

Purpose

To determine how current rates for demand are (or are not) fulfilling performance expectations now or in the future and, with robust stakeholder input, design solutions that address prioritized deficiencies.

Scope

The following topics are in scope for this engagement:

  • Rate class review (including self-supply, large load, and non-firm rates)
  • Rate Demand Transmission Service (DTS) performance and potential redesign
  • Rate Demand Opportunity Service (DOS) performance review

Although there will be overlap and interdependencies, the below topics are out of scope and will either be covered in other workstreams, or are being discussed as part of standalone engagements:

  • Point of Delivery (POD) Charges – classification, allocation, and rate design
  • Ancillary Service products, services, and associated fees
  • Optimal Transmission Planning (OTP)
  • Restructured Energy Market (REM)

Engagement Schedule


Background

The Electric Utilities Act (EUA) requires the AESO to submit a tariff for AUC approval. The AUC has directed the AESO to refile its Bulk & Regional Tariff Design by January 31, 2027. Parties are encouraged to review documents from AUC Proceeding 26911, the last Bulk & regional Tariff application, with a particular emphasis on the Commission's decision and parties' evidentiary submissions.

With respect to Rate DOS, parties are encouraged to review Decision 28989-D02-2024.

Given recent amendments to the EUA, anticipated updates to the government’s Transmission Regulation, and the ongoing grid transformation, a fulsome review of Rate DTS is necessary. The AESO expects that revisions to the tariff will need to incorporate these new policy directions, recover the AESO's revenue requirements, and adhere to other rate design principles and strategic objectives to the greatest extent possible.

  • July 9, 2025 | Consultants Selected

    Benefit of Service Study | 1-on-1 Confidential Interviews July- Aug, 2025

    We have selected a consortium of consultants to complete the Benefit of Service (BoS) study. We are excited to announce that Boost Energy Ventures, Energex Partners, and Power Team Consulting (BoS Consortium) will be completing this first of a kind study for Alberta’s electricity industry.

    The BoS Consortium will perform a quantitative and qualitative analysis to help answer: “What is the value of service from transmission connectivity in Alberta?”

    They will study 13 archetypes in grid-connected and off-grid configurations. View the summary of their methodology and archetypes.

    They will be directly engaging with electricity consumers to gather information on:

    • the value of grid service,
    • the impacts to consumers when it is interrupted (value of lost load), and
    • how they make decisions related to their electricity needs.
    The BoS Consortium representatives will be reaching out to targeted consumers in July and August, 2025. If you have comments on their methodology, archetypes, or would like to participate in the one-on-one confidential interviews with the BoS Consortium throughout July and August, please contact ISOTariffRedesign@aeso.ca.

    Cost of Service and Performance Review of Existing Rates Studies

    We have selected FTI Consulting (FTI) to support the Cost-of-Service studies and performance review of existing rates. We expect this work will be completed by November 2025. FTI will also support options development, bill impact analysis, mitigation measures, and application preparation in 2026.

    View more information on the delivery team.


  • Stakeholder Sessions

    April 30, 2025 | Information Session

    The AESO hosted a virtual stakeholder session on April 30 from 9:30 a.m. to 11: 30 a.m. to provide stakeholders with an opportunity to ask questions and ensure alignment prior to commissioning studies and seeking the next round of written feedback.

    Purpose

    • Summarize and asses the AESO's understanding of stakeholder feedback received
    • Seek input on the AESO's draft issue prioritization
    • Q&A

    Materials

    Are available under AESO Materials (stakeholder presentations)

Page last updated: 09 Jul 2025, 01:46 PM