Customer Advice Notices (CAN)

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Customer Advice Notices include important information for market participants about events happening on the power system.

These notices are also available for interested parties and other stakeholders, including media and consumers. Subscribe to this page to receive an email notification when a new CAN is published. If you wish to receive notification when an Excursion Notice or GEN is issued you need to subscribe to these pages separately.

March
Notice Date
Notice CAN Updated Manual Constraint Date
Notice CAN Outage Assessment for Ashburton-Timaru-Twizel 1 outage Date
Notice CAN Outage Assessment for Ashburton-Timaru-Twizel 2 outage Date
Notice CAN Outage Assessment for Islington-Norwood 1 outage Date
Notice CAN Outage Assessment for Ashburton-Bromley 1 outage Date
Notice CAN Glenbrook BESS to be classified as a Secondary Risk whilecommissioning Date
Notice CAN Change to Shoulder ratings from 15-Mar-2026 07:00 to 10-May-202606:59 Date
Notice CAN Change to Shoulder ratings from 15-Mar-2017 07:00 to 10-May-201706:59 Date
Notice CAN Planned Outage HVDC Pole 2, HVDC Pole 3 Date
February
Notice Date
Notice CAN ICCP and SCADA interruptions due to the planned update of the Transpower SCADA System Date
Notice CAN Planned Outage HVDC Pole 2, HVDC Pole 3 Date
Notice CAN Round power status change Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Round power status change Date
Notice CAN HVDC Pole 2 Reduced Capability Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Transmission Circuit Risk Reclassification Date
Notice CAN Transmission Circuit Risk Reclassification Date
Notice CAN Round power status change Date
Notice CAN Under-Frequency Event Confirmation Date
Notice CAN Planned Outage HVDC Pole 2, HVDC Pole 3 Date
Notice CAN Planned Outage HVDC Pole 2, HVDC Pole 3 Date
Notice CAN Planned Outage HVDC Pole 2, HVDC Pole 3 Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Unplanned Outage HVDC Pole 3 Date
Notice CAN Ngatamariki Unit 5 to be classified as a Secondary Risk whilecommissioning Date
Notice CAN Transmission Circuit Risk Reclassification Date
January
Notice Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Transmission Circuit Risk Reclassification Date
Notice CAN Transmission Circuit Risk Reclassification Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Round power status change Date
Notice CAN Ngatamariki Unit 5 to be classified as a Secondary Risk whilecommissioning Date
Notice CAN Round power status change Date
Notice CAN Transmission Circuit Risk Reclassification Date
Notice CAN Transmission Circuit Risk Reclassification Date