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    Energy Storage Rule Amendments

    Proposed Amendments to ISO Rules to Enable Energy Storage

    For more information regarding the AESO's Energy Storage initiative please visit the Energy Storage webpage.

    Recent posted materials

    Purpose

    In the Letter of Notice for Development, the AESO proposes to consult with Stakeholders on the development of the proposed Energy Storage ISO Rule Amendments that will facilitate the integration of energy storage, improve the clarity required for market qualification and participation, and enable efficient, effective connection, monitoring, and control of energy storage facilities when connected.

    At this time, the AESO does not have a definitive list of ISO rules that will be included in the proposed Energy Storage ISO Rule Amendments. However, the AESO anticipates that more than 30 ISO rules may be impacted in order to address various matters, including, potentially:

    • market participation;
    • fast frequency response;
    • technical, qualification, and connection requirements;
    • technology agnostic application of requirements;
    • adjustment to load on the margin; and
    • opportunities to reduce red tape.

    Background

    This initiative has resulted from the Energy Storage Long-term Markets Participation engagement, which concluded in March 2021. ES Long-term Markets Participation was part of the long-term implementation of the energy storage integrated plan as detailed in the Energy Storage Roadmap. The roadmap will improve the clarity required for market qualification and participation, and enable efficient, effective connection, monitoring and control of energy storage facilities when connected.

    The current regulatory framework supports a traditional model, where electricity is produced by generators and transported through transmission and distribution systems to customers who purchase the electricity. Current ISO rules were not generally developed in contemplation of the integration of energy storage technologies to the interconnected electric system resulting in a lack of clarity in their application to energy storage. Specifically, ISO rules lack the clarity required for market qualification and participation, and to enable efficient, effective connection, monitoring, and control of energy storage facilities when connected. The AESO has developed draft high-level market design recommendations that outline how energy storage could be integrated into the energy market. The AESO’s draft high-level market design recommendations are described in the AESO’s Long-term Energy Storage Market Participation Draft Recommendation Paper. Once finalized, implementing these recommendations will require amendments to ISO rules

    • Session 1 & 2 | Sept. 13 & 26, 2022

      The AESO held a virtual stakeholder consultation session on September 13, 2022 from 9 a.m. to 12:00 p.m. and will be holding a second virtual stakeholder consultation session on September 26, 2022 from 1 p.m. to 4 p.m. 

      Invitation

      Further to the July 22, 2022 Save the Date posted on the AESO website, the AESO is now providing Stakeholders with registration details for the Stakeholder consultation sessions on September 13, 2022 and September 26, 2022.

      The AESO originally planned to conduct two separate sessions on September 13, 2022, offering Stakeholders the ability to attend the session that are of interest to them. After further consideration, the AESO has decided to merge the Stakeholder sessions 1 and 2 into a single all-day session because, in several instances, the aggregated facility topics are foundational to the understanding of the applicability and clarification of the technical ISO rules.

      Stakeholder consultation session details

      The AESO anticipates posting the session agenda, presentation for the September 13 Session, along with the AESO’s written responses to stakeholder comments, on September 2, 2022. The AESO recommends that Stakeholders review all materials in advance of the session.

      If certain comments and questions were not sufficiently addressed by the AESO through written responses, or in the September 13 Session, Stakeholders are welcome to raise outstanding issues at the September 26 Open Forum Q&A.

      The registration information for the Stakeholder consultation session are provided in the Invitation linked below.

      Session 2 topics & agenda

      On September 13, 2022, the AESO provided a survey link for Stakeholders to confirm the topics that they wish to discuss at Session 2 on September 26, 2022. Five Stakeholders responded to the survey and requested that the AESO review the following items:

      • The proposed changes to Section 303.1, Load Shed Service for Imports to support the technology-agnostic provision of fast frequency response ("FFR") service, and related information on the AESO's FFR pilot procurement ("FFR Pilot"); and
      • Market participation of co-located facilities that are metered and dispatched separately.

      The AESO confirms that it will host Session 2 to review these two topics. Stakeholders are also invited to raise any other remaining questions related to the Energy Storage ISO Rule Amendments at Session 2.

      The AESO is currently preparing a brief presentation, which will largely be a refresher of material from the February 24, 2021 Stakeholder Session.1 In the interim, an agenda is provided in the Session 2 Topics & Agenda Letter to help Stakeholders determine their attendance for Session 2.

      Session 1 & 2 materials

    • Letter of Notice | May 9, 2022

      Purpose

      The Letter of Notice for Energy Storage ISO Rule Amendments states that the AESO is consulting with Stakeholders on the development of the proposed Energy Storage ISO Rules Amendments that will facilitate the integration of energy storage, improve the clarity required for market qualification and participation, and enable efficient, effective connection, monitoring, and control of energy storage facilities when connected.

      Request for Stakeholder comments

      The AESO provided three comment matrices to organize feedback on ISO rule amendments, definition amendments, and specific issues of interest to the AESO.

      The AESO received comments from Stakeholders in response to its May 9, 2022 Letter of Notice for the Energy Storage ISO Rule Amendments. These comments have been posted on the AESO website.

      Thank you to all Stakeholders who participated in this consultation. All written comments received will be considered in the AESO’s finalization of the Energy Storage ISO Rule Amendments.

      Letter of Notice materials

    • Updates | 2021 - 2022
    • Session 1 | Feb. 24, 2021

      Background

      The AESO hosted a virtual stakeholder consultation on Energy Storage on Feb. 24, 2021 from 9 a.m. to 12 p.m. The second portion of this engagement session focused on the AESO's Long-term Energy Storage Markets Participation recommendations and how they are related to ISO rule development. As such, the materials found in this accordion relate specifically to the development of ISO rules.

      Purpose

      • Review the draft recommendations presented in the Energy Storage Long-term Market Participation Recommendation Paper.
      • Introduce related ISO rule development requirements.

      Session 1 materials

      *Note: The presentation posted here is is related solely to the ISO Rules development portion of the Feb, 24, 2021 Stakeholder Engagement Session. Please visit the Energy Storage Long-term Markets Participation webpage to view the complete presentation.

    • Notice for Development | Feb. 17, 2021

      Purpose

      Letter of Notice for Development of Proposed Amendments to ISO rules to Enable Energy Storage of proposed amendments to ISO rules to enable energy storage.

      Stakeholder comments

      Thank you to all Stakeholders who participated in this part of the ISO rules comment process. All written comments received will be considered in the AESO’s development of the proposed Energy Storage ISO Rule Amendments and can be found in the materials section below.

      Notice for Development materials

    Related materials

    For more information regarding the AESO's Energy Storage initiative please click here or visit the AESO website at www.aeso.ca and follow the path Grid> Energy Storage. 

    If you have any other questions, please contact rules_comments@aeso.ca  and subscribe to our stakeholder newsletter for updates.

    Energy Storage Rule Amendments