Regulatory Law Chambers logo

EPCOR Distribution & Transmission Inc. 2023 Cost-of-Service Compliance Filing and 2023 Distribution Rates, AUC Decision 27653-D01-2022

Link to Decision Summarized

Electricity – Rates


EPCOR Distribution & Transmission Inc. (“EDTI”) made filings in compliance with Decision 26617-D02-2022 and its resulting 2023 distribution rates. The AUC considered 2023 rebasing by way of a negotiated settlement agreement (“NSA”). In Decision 26617-D01-2022, the AUC approved the NSA and instructed EDTI to submit additional filings required for this proceeding.


The AUC determined that EDTI complied with Decision 26617-D02-2022 and approved the resulting 2023 forecast revenue requirement. The AUC also approved EDTI’s 2021 annual transmission access charge deferral account (“TACDA”) true-up amount and the 2023 system access service (“SAS”) transmission rates. Finally, the AUC approved the 2023 distribution rates, riders and corresponding rate schedules, subject to EDTI filing post-disposition documents reflecting adjustments to the Residential Customer class consumption forecast.

Applicable Legislation

AUC Rule 021: Settlement System Code Rules.

AUC Rule 023: Rules on Costs in Utility Rate Proceedings.

Pertinent Issues

In Decision 26617-D01-2022, the AUC accepted the NSA reached between EDTI and the Office of the Utilities Consumer Advocate (UCA) as reasonable. Subsequently, in Decision 26617-D02-2022, the AUC directed EPCOR to file a compliance filing to the decision, including all information that typically accompanies the calculation of rates, including the following:

  • A 2023 billing determinant forecast reflective of the last approved Phase 2 methodologies and most recent data.

  • A 2023 distribution tariff based on the approved revenue requirement and the associated bill impact analysis.

  • Terms and conditions of service for 2023 for approval.

  • A true-up of the prior approved deferral accounts, such as the amounts included in the Y factor and 2021 Transmission Access Charge Deferral Account true-up.

  • All currently approved deferral accounts and rate riders shall continue to be applied in 2023. The differences between forecast and actual costs for amounts in these accounts will subsequently be trued up in the annual PBR rate adjustment filings.

  • Any other items required to support the proposed 2023 distribution tariff.

The AUC approved EDTI’s 2023 distribution rates, including the options and riders, on an interim basis, effective January 1, 2023, subject to EDTI filing an updated set of schedules by December 19, 2022. These rates will remain interim pending the finalization of all outstanding placeholders.

Related Posts