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    840s McNeill Converter Operation (AB-SK Intertie) Update

    ATCO Electric has informed the AESO that the McNeill converter station has suffered a component failure and is recommending that, except under emergency situations, McNeill not be utilized for energy flow until repairs can be completed. As such, the AB-SK intertie ATC will be posted as zero for both import and export during this period. The expected schedule for this operating condition is below. Please note that the schedule is subject to change as repairs are progressed.

    • Dec 2, 2024 (12:00 pm): McNeill available for emergency energy use only
    •  May 5, 2025 (12:00 pm): McNeill returned to normal operation

    Further, ATCO Electric will be performing tests of the McNeill converter station on Dec 3rd that will affect the import (SK to AB) and export (AB to SK) flows on the Alberta - Saskatchewan intertie. The expected testing plan is given below but is subject to change as repairs are progressed. Please note that energy flows during the testing periods may be variable and change unexpectedly and the volumes given are meant to represent an expected range.

    • Dec 3, 2024 (10:00 to 11:00): 50 MW AB to SK
    •   Dec 3, 2024 (11:00 to 12:00): 50 MW SK to AB

    Should you have any questions, please contact Eric Viray, Manager – Operations Coordination, at ph: 403-705-5209.

    840s McNeill Converter Operation (AB-SK Intertie) Update