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    Settlement and Credit

    We provide financial settlement and credit information for market participants to conduct their business.

    To keep apprised of settlement updates, subscribe to our stakeholder newsletter at the bottom of this website.

    Settlement Dates

    Settlement Audit 

    The AESO is committed to settlement operations that result in effective, accurate and confidential settlement statements and reports for market participants. To assure market participants and their auditors that the AESO's settlement operations internal controls are suitably designed and operating effectively, an independent settlement operations audit was conducted for the audit period April 1, 2022, to September 30, 2022.  

    The scope of the audit included both the energy market settlement and the transmission settlement. The SOC 1 Type 2 Audit - Canadian Standard for Assurance Engagements (CSAE 3416) was conducted by MNP LLP.  At this time, the AESO intends to have such an audit conducted every three years.  

    The AESO's settlement controls, processes and procedures recently received an unqualified opinion. Findings based on the criteria described in the AESO’s Statement are as follows: 

    1. The Description fairly presents the Settlement System that was designed and implemented throughout the period April 1, 2022, to September 30, 2022.
    2. The controls related to the control objectives stated in the Description were suitably designed to provide reasonable assurance that the control objectives would be achieved if the controls operated effectively throughout the period April 1, 2022, to September 30, 2022, and the sub-service organizations and user entities applied the complementary controls assumed in the design of the AESO’s controls throughout the period April 1, 2022, to September 30, 2022.
    3. The controls operated effectively to provide reasonable assurance that the control objectives stated in the Description were achieved throughout the period April 1, 2022, to September 30, 2022, if complementary sub-service organization and user entity controls assumed in the design of the AESO’s controls operated effectively throughout the period April 1, 2022, to September 30, 2022.

    For more information or a copy of the full report, contact Karen.Campbell@aeso.ca.

    Settlement Process Guides

    If you are a market participant or are interested in how settlement works, and need help with the power pool financial settlement process, view these guides.

    A step-by-step guide to help you access and review your wholesale electricity market settlement. Zoom A step-by-step guide to help you access and review your wholesale electricity market settlement.

    Energy Market Disputes

    View the 2023-2024 power pool financial settlement dispute timelines.

    Banking Information/Treasury

    All transactions related to energy market and transmission settlements must remain separate, deposited into their respective Bank of Montreal accounts without netting energy market and transmission statements. The AESO will electronically transfer amounts owed to participants and customers on the cash settlement date based upon the separate energy market (pool) and transmission statements, without any netting to offset amounts that might be owed to the AESO (i.e. netting transmission and energy market).

    For more information please contact accounting@aeso.ca.

    Bank of Montreal
    340 – 7 Avenue SW
    Calgary, AB T2P 0X4

    Credit Rating

    The AESO has obtained a credit rating of AA-/Stable from Standard and Poor’s Ratings Services, a leading global provider of independent credit risk research and benchmarks.

    To access Standard and Poor’s rating summary analysis for the AESO, visit www.standardandpoors.com.

    Please direct any questions to:

    Phone: 403-539-2900
    Email: credit@aeso.ca

    Financial Security Requirements

    Market participants with financial obligations to the AESO are required to provide financial security to cover at least two months of estimated obligations above their unsecured credit limits (if applicable).  For more information on unsecured limits, acceptable forms of financial security, and general credit information, please see ISO Rules Section 103.3 Financial Security Requirements. 

    For more information, please contact AESO Credit at:

    Phone: 403-539-2900
    Email: credit@aeso.ca

    Prudential Pool Price

    At mid month, the AESO will post the Prudential Pool Price, which is the weighted average of actual pool prices (first half of month) plus the forward power price for the balance of the month (adjusted by adding a 15 % multiplier to the price to account for price volatility).

    Please note that Prudential pool prices will change throughout the month due to changing market conditions.  To obtain up-to-date Prudential pool prices, please contact Credit@aeso.ca

    2024 Prudential Pool Price

    Month Pool Price
    January $ 170.00
    February $ 91.00
    March $ 74.00
    April $ 81.00
    May $ 43.00
    June $ 45.00
    July $ 91.00
    August $ 56.00
    September $ 56.00
    October $ 65.00

    Monthly Reporting

    As part of the AESO’s monthly credit reporting to market participants, the chart in the document below includes the unsecured credit limits and related credit exposures by credit rating category (i.e. AAA, AA, A, BBB) for rated market participants for the preceding two months. The chart also includes credit exposures, financial security and the amount of any unsecured credit granted by the AESO to non-rated market participants.

    To protect the confidentiality of its market participants, the AESO will only provide aggregated information. No information will be provided on an individual market participant basis.

    Settlement and Credit