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Customer Advice Notices (CAN)

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We send Customer Advice Notices regarding events happening on the power system.

The website publishes all CANs that are sent out from the System Operator. Subscribe to this page to receive an email notification when a new CAN is published.

MayDate
CAN Round power status change [  460.25 KB ]25/05/2022
CAN Round power status change [  460.81 KB ]25/05/2022
CAN NZGB Assessment for Potential Negative Generation Balances inJune 2022 [  158.02 KB ]23/05/2022
CAN Round power status change [  319.32 KB ]23/05/2022
CAN Round power status change [  320.71 KB ]23/05/2022
CAN Withdrawal of Revised RDF T3 and T4 Permanent Manual Constraint [  474.08 KB ]20/05/2022
CAN Withdrawal of Change to Redclyffe T3 and T4 Transformer OverloadProtection Scheme [  305.28 KB ]20/05/2022
CAN Frankton Circuit and Transformer Overload Protection Scheme [  293.58 KB ]18/05/2022
CAN Kawerau T13 Transformer Overload Protection Scheme [  291.84 KB ]18/05/2022
CAN Revised RDF T3 and T4 Permanent Manual Constraint [  462.25 KB ]18/05/2022
CAN Change to Redclyffe T3 and T4 Transformer Overload ProtectionScheme [  303.04 KB ]18/05/2022
CAN Round power status change [  319.24 KB ]16/05/2022
CAN Under-Frequency Event Confirmation [  185.02 KB ]10/05/2022
CAN Change to Winter ratings from 10-May-2022 07:00 to 20-Oct-202206:59 [  301.47 KB ]02/05/2022
AprilDate
CAN Outage Assessment for Islington Livingstone 1 [  303.92 KB ]29/04/2022
CAN GZ14_IMPORT_STABILITY_P_1 Permanent Manual Constraint Update [  466.03 KB ]29/04/2022
CAN Revised KAW_T12 Outage Manual Constraints [  463.8 KB ]28/04/2022
CAN Update on Southland security issues and the grid reconfiguration(Gore bus split at disconnector 557) [  302.52 KB ]27/04/2022
CAN Outage Assessment for Negative Generation Balance on 03 May 2022 [  399.51 KB ]26/04/2022
CAN Unplanned Outage HVDC Pole 3 [  368.5 KB ]14/04/2022
CAN Unplanned Outage HVDC Pole 3 [  368.11 KB ]14/04/2022
CAN Unplanned Outage HVDC Pole 3 [  368.49 KB ]14/04/2022
CAN Unplanned Outage HVDC Pole 3 [  368.24 KB ]14/04/2022
CAN Planned Outage HVDC Pole 3 [  368.11 KB ]14/04/2022
CAN Outage Assessment for Negative Generation Balance on 03 May 2022 [  396.12 KB ]12/04/2022
CAN GZ14_IMPORT_STABILITY_P_1 Permanent Manual Constraint [  472.96 KB ]08/04/2022
CAN Southland security issues - further assessments and notice ofrequest for urgent temporary grid reconfiguration [  148.97 KB ]07/04/2022
CAN Southland security issues and request for information [  479.74 KB ]01/04/2022
MarchDate
CAN Notification of Potential Critical Gas Contingency [  295.12 KB ]23/03/2022
CAN Transmission Circuit Risk Reclassification [  316.01 KB ]23/03/2022
CAN Transmission Circuit Risk Reclassification [  311.39 KB ]22/03/2022
CAN Transmission Circuit Risk Reclassification [  316.42 KB ]22/03/2022
CAN Transmission Circuit Risk Reclassification [  314.31 KB ]22/03/2022
CAN Planned Outage HVDC Pole 3 [  372.69 KB ]20/03/2022
CAN Planned Outage HVDC Pole 3 [  372.2 KB ]11/03/2022
CAN Clutha and Upper Waitaki Lines Project (CUWLP): update and outagechanges [  474.19 KB ]09/03/2022
CAN Outage Assessment for Ashburton-Bromley outage [  441.69 KB ]07/03/2022
CAN Change to Shoulder ratings from 15-Mar-2022 07:00 to 10-May-202206:59 [  280.89 KB ]07/03/2022
CAN Planned Outage HVDC Pole 2 [  383.71 KB ]06/03/2022
CAN Planned Outage HVDC Pole 2 [  382.39 KB ]06/03/2022
CAN Under-Frequency Event Confirmation [  204.14 KB ]03/03/2022
CAN Change of Load Forecast [  369.23 KB ]02/03/2022
CAN Planned Outage HVDC Pole 2 [  381.78 KB ]01/03/2022
FebruaryDate
CAN COVID-19: Staffing limitations that might impact your ability tooperate generation or industrial load normally [  314.19 KB ]25/02/2022
CAN Change of Load Forecast [  369.54 KB ]24/02/2022
CAN Planned Outage HVDC Pole 2, HVDC Pole 3 [  399.59 KB ]22/02/2022
CAN Planned Outage HVDC Pole 2, HVDC Pole 3 [  399.55 KB ]21/02/2022
CAN Industry conference call at 11:00, 21st February - update on lowresidual situation [  292.42 KB ]21/02/2022
CAN Low Residual Situation [  466.67 KB ]20/02/2022
CAN Planned Outage HVDC Pole 2, HVDC Pole 3 [  397.27 KB ]20/02/2022
CAN Change of Load Forecast [  366.32 KB ]16/02/2022
CAN Planned Outage HVDC Pole 2, HVDC Pole 3 [  388.64 KB ]09/02/2022
JanuaryDate
CAN New Temporary Manual Constraint (GZ14_IMPORT_STABILITY_T_1) [  461.79 KB ]28/01/2022
CAN Transmission Circuit Risk Reclassification [  452.57 KB ]25/01/2022
CAN Dispatching from backup tools [  432.76 KB ]25/01/2022
CAN Dispatching from backup tools [  428.46 KB ]25/01/2022
CAN Temporary (credible risk) reclassification of Roxburgh T10, 11Jan 2022 to 22 Jan 2022 [  311.96 KB ]20/01/2022
CAN Circuit reclassification / Managing a Potential Electrical Island [  302.06 KB ]19/01/2022
CAN Circuit reclassification / Managing a Potential Electrical Island [  301.79 KB ]19/01/2022