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ATCO Electric Ltd. 2024 Interim Performance-Based Regulation Rate Adjustment, AUC Decision 28570-D01-2023

Link to Decision Summarized

Electricity – Rates


ATCO Electric Ltd. (“AE”) submitted for approval its third-generation performance-based regulation (“PBR3”) plan compliance filing and 2024 PBR annual rate adjustment application, as directed by the AUC in Decision 27388-D01-2023.


The AUC approved AE’s 2024 distribution rates and updated terms and conditions for electric distribution service on an interim basis, effective January 1, 2024. The interim rates will be in effect until the AUC makes a final decision on these rates.

Pertinent Issues

In Decision 27388-D01-2023, the AUC established the parameters of the PBR3 plan for the four electric distribution and two natural gas utilities, including AE. In that decision, AE was directed to file a compliance filing for rates for 2024 in accordance with the parameters of the PBR3 plan.

Normally, a PBR rate adjustment application is filed by September 10 of each year to allow for a sufficient review process to set rates effective January 1 of the following year. However, given the need to set out PBR3 parameters in 2023 and the timing of the issuance of Decision 27388-D01-2023, the application from AE was received well past the usual date for annual rate filings. The AUC decided to approve interim rates because final PBR rates will not be in place before January 1, 2024, and interim rates promote short-term rate stability. AE’s rates will be trued up to reflect the final 2024 PBR rates once they are approved by the AUC.

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