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Excursion Notices

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Excursion notices are emailed out to registered electricity market participants and comprise of the following notice types and :

  • Frequency Excursion Notices
  • Voltage Excursion Notices

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MayDate
EXN Voltage North Island Owhata Te Matai Tarukenga 1 Auto-reclosed [  27.91 KB ]27/05/2022
EXN Voltage North Island Rotorua Tarukenga 1 Tripped [  27.87 KB ]27/05/2022
EXN Voltage North Island Rotorua Tarukenga 1 Tripped, Rotorua T5Tripped, Rotorua T4 Tripped [  27.9 KB ]26/05/2022
EXN Voltage North Island Arapuni Hangatiki Auto-reclosed [  27.89 KB ]24/05/2022
EXN Voltage North Island Woodville Dannevirke Waipawa 1 Tripped,Waipawa T2 Tripped, Dannevirke T2 Tripped [  27.93 KB ]24/05/2022
EXN Voltage North Island Wheao generation tripped [  27.86 KB ]21/05/2022
EXN Voltage North Island Greytown T2 Tripped, Greytown T3 Tripped,loss of supply to Greytown. [  27.93 KB ]21/05/2022
EXN Voltage South Island Dobson Reefton Inangahua 2, Reefton T3, andDobson T11 tripped, Loss of Supply to Reefton [  27.96 KB ]20/05/2022
EXN Voltage South Island Dobson Greymouth tripped, Greymouth Kumaratripped, Loss of Supply to Greymouth [  27.94 KB ]20/05/2022
EXN Voltage North Island Waverley T1 tripped, Loss of Supply toWaverley [  27.9 KB ]20/05/2022
EXN Voltage North Island Ohakune National Park Ongarue 1 tripped,National Park T1 tripped, Loss of Supply to National Park [  28 KB ]20/05/2022
EXN Voltage South Island Dobson Greymouth 1 Tripped, Dobson T2Tripped [  27.89 KB ]20/05/2022
EXN Voltage South Island Kumara Otira 1 Tripped, Hokitika Kumara 1Tripped [  27.9 KB ]20/05/2022
EXN Voltage South Island Blenheim Stoke 1 Auto-reclosed, BlenheimStoke 2 Auto-reclosed [  27.93 KB ]19/05/2022
EXN Voltage North Island Poihipi Generation Tripped [  27.86 KB ]18/05/2022
EXN Voltage North Island Fernhill Waipawa 2 Tripped [  27.88 KB ]18/05/2022
EXN Voltage South Island Inangahua Kikiwa 1 Auto-reclosed [  27.9 KB ]17/05/2022
EXN Voltage North Island Masterton Greytown Upper Hutt 2Auto-reclosed, Greytown T2 Tripped [  27.95 KB ]16/05/2022
EXN Voltage North Island Te Kowhai T1 Tripped [  27.86 KB ]16/05/2022
EXN Voltage North Island Redclyffe Tuai 1 Auto-reclosed [  27.9 KB ]15/05/2022
EXN Voltage South Island Kumara Otira 1 Tripped [  27.86 KB ]15/05/2022
EXN Voltage North Island Stratford Generation Tripped [  27.86 KB ]13/05/2022
EXN Voltage North Island Ongarue T1 tripped, Arapuni HangatikiOngarue 1 and Ohakune National Park Ongarue 1 tripped at Ongarue. Loss ofsupply to Ongarue. [  28.02 KB ]12/05/2022
EXN Voltage North Island Hangatiki T1 Tripped [  27.86 KB ]11/05/2022
EXN Frequency South Island Tiwai potline tripped [  28.56 KB ]11/05/2022
EXN Frequency South Island Tiwai Potline Tripped [  28.56 KB ]10/05/2022
EXN Voltage North Island Fernhill Waipawa 1 Tripped [  27.87 KB ]09/05/2022
EXN Voltage South Island Coleridge Generation Tripped [  27.87 KB ]09/05/2022
EXN Voltage North Island Bunnythorpe Marton Wanganui 2 Tripped,Marton T2 Tripped [  27.92 KB ]07/05/2022
EXN Frequency National [  28.58 KB ]05/05/2022
EXN Voltage North Island Owhata Te Matai Tarukenga 1 Auto-reclosed [  27.91 KB ]05/05/2022
EXN Voltage South Island Islington Livingstone 1 Auto-reclosed [  27.9 KB ]04/05/2022
EXN Voltage North Island Bombay Hamilton 2 Auto-reclosed [  27.9 KB ]02/05/2022
AprilDate
EXN Voltage North Island Fernhill Waipawa 2 Tripped [  27.87 KB ]29/04/2022
EXN Voltage North Island Arapuni Hangatiki Auto-reclosed [  27.9 KB ]27/04/2022
EXN Voltage North Island Woodville Dannevirke Waipawa 1 Tripped,Dannevirke T2 Tripped, Waipawa T2 Tripped [  28.14 KB ]27/04/2022
EXN Voltage North Island Woodville Dannevirke Waipawa 1 Tripped,Waipawa T1 Tripped, Dannevirke T2 Tripped [  27.93 KB ]27/04/2022
EXN Frequency South Island Tiwai Potline tripped. [  28.56 KB ]26/04/2022
EXN Voltage North Island Bunnythorpe Mataroa Tripped [  27.87 KB ]26/04/2022
EXN Voltage South Island Tekapo generator tripped [  27.86 KB ]25/04/2022
EXN Voltage North Island Opunake Kapuni Stratford 2 Tripped, OpunakeT4 Tripped [  27.92 KB ]25/04/2022
EXN Voltage North Island Fernhill Tuai 1 Tripped [  27.86 KB ]24/04/2022
EXN Voltage South Island Islington SVC3 Tripped [  27.87 KB ]22/04/2022
EXN Voltage North Island Haywards STC31 Tripped [  27.87 KB ]22/04/2022
EXN Voltage North Island Marsden STC 5 Tripped [  27.85 KB ]22/04/2022
EXN Voltage North Island Mckee Generation [  27.87 KB ]21/04/2022
EXN Voltage South Island Frankton 33kV Bus Trip [  27.87 KB ]21/04/2022
EXN Frequency/Voltage National Tiwai reduction line tripped [  28.6 KB ]18/04/2022
EXN Frequency South Island Tiwai Reduction Line tripped [  28.58 KB ]17/04/2022
EXN Voltage National Benmore Haywards 1 Tripped [  27.9 KB ]14/04/2022
EXN Voltage North Island Waiotahi T5 Tripped [  27.85 KB ]13/04/2022
EXN Voltage North Island Te Mihi Generator Tripped [  27.86 KB ]11/04/2022
EXN Voltage North Island Piripaua Generation Tripped [  27.87 KB ]06/04/2022
EXN Voltage North Island Whareroa Generation Tripped [  27.87 KB ]05/04/2022
EXN Voltage North Island Motonui T4 Tripped [  27.85 KB ]05/04/2022
EXN Voltage South Island Islington Livingstone 1 Auto-reclosed [  27.92 KB ]03/04/2022
EXN Voltage North Island Huirangi Motonui Auto-reclosed [  27.9 KB ]03/04/2022
MarchDate
EXN Voltage North Island Hawera Whareroa 1 Tripped [  27.85 KB ]31/03/2022
EXN Voltage North Island Bunnythorpe Mataroa Tripped [  27.86 KB ]25/03/2022
EXN Voltage North Island Junction Road Generator Tripped. [   28.01 KB ]25/03/2022
EXN Voltage North Island Junction Road Generator Tripped. [   27.9 KB ]25/03/2022
EXN Voltage South Island Islington Livingstone 1 Auto-reclosed [  27.9 KB ]25/03/2022
EXN Voltage South Island Coleridge Otira 2 Auto-reclosed [  27.9 KB ]25/03/2022
EXN Voltage South Island Balclutha Halfway Bush 1 Auto-reclosed [  27.96 KB ]25/03/2022
EXN Voltage North Island Fernhill Tuai 1 Auto-reclosed [  27.88 KB ]24/03/2022
EXN Voltage North Island Te Mihi Generator Tripped [  27.85 KB ]23/03/2022
EXN Voltage North Island Ngawha Generation Tripped [  27.85 KB ]23/03/2022
EXN Voltage North Island Opunake Kapuni Stratford 2 Tripped [  27.88 KB ]23/03/2022
EXN Voltage North Island Carrington St Junction Rd Stratford 1Auto-reclosed, Motunui McKee Stratford 1 Auto-reclosed [  27.97 KB ]23/03/2022
EXN Voltage North Island Tuai Feeder Tripped [  27.83 KB ]22/03/2022
EXN Voltage North Island Wanganui Waverley Auto-reclosed [  27.89 KB ]22/03/2022
EXN Voltage North Island Fernhill Tuai 1 Auto-reclosed [  27.89 KB ]22/03/2022
EXN Voltage South Island Coleridge Hororata 3 Auto-reclosed [  27.9 KB ]22/03/2022
EXN Voltage North Island Ngawha Generation Tripped [  27.85 KB ]21/03/2022
EXN Voltage North Island Ngawha Generation Tripped [  27.85 KB ]21/03/2022
EXN Voltage North Island Otahuhu Whakamaru 2 Tripped, OtahuhuWhakamaru 1 Auto-reclosed [  27.93 KB ]21/03/2022
EXN Voltage North Island Taumarunui Te Kowhai 1 Auto-reclosed,Taumarunui T8 Tripped [  27.92 KB ]21/03/2022
EXN Voltage North Island Huntly Stratford Auto-reclosed [  27.9 KB ]21/03/2022
EXN Voltage North Island Otahuhu Whakamaru 1 Tripped [  27.86 KB ]21/03/2022
EXN Voltage North Island Henderson Maungatapere 1 Auto-reclosed,Maungaturoto T1 Tripped [  27.93 KB ]21/03/2022
EXN Voltage North Island Henderson Maungatapere 1 Auto-reclosed,Henderson Maungatapere 2 Auto-reclosed, Maungaturoto T1 Tripped, MaungaturotoT2 Tripped [  28.06 KB ]21/03/2022
EXN Voltage North Island Henderson Maungatapere 1 Auto-reclosed [  27.94 KB ]21/03/2022
EXN Voltage North Island Henderson Maungatapere 2 Auto-reclosed,Henderson Maungatapere 1 Auto-reclosed [  27.99 KB ]21/03/2022
EXN Voltage North Island Kaikohe Maungatapere 2 Auto-reclosed [  27.94 KB ]21/03/2022
EXN Voltage North Island Henderson Maungatapere 1 Auto-reclosed [  27.94 KB ]21/03/2022
EXN Voltage North Island Henderson Maungatapere 2 Auto-reclosed [  27.93 KB ]21/03/2022
EXN Voltage North Island Kaikohe Maungatapere 2 Tripped [  27.92 KB ]21/03/2022
EXN Voltage North Island Kaikohe Maungatapere 2 Auto-reclosed [  27.9 KB ]21/03/2022
EXN Voltage North Island Fernhill 33kV Bus Tripped. [   27.86 KB ]19/03/2022
EXN Voltage South Island Coleridge Otira 1 Auto-reclosed [  27.89 KB ]19/03/2022
EXN Voltage South Island Coleridge Hororata 3 Auto-reclosed [  27.89 KB ]17/03/2022
EXN Voltage North Island Ohakune National Park Ongarue 1 Tripped [  27.88 KB ]15/03/2022
EXN Voltage North Island Poihipi Generation Tripped [  27.86 KB ]15/03/2022
EXN Voltage North Island Arapuni Kinleith 1 Auto-reclosed [  27.9 KB ]14/03/2022
EXN Voltage North Island Karapiro Te Awamutu Auto-reclosed [  27.89 KB ]14/03/2022
EXN Voltage North Island Karapiro Te Awamutu Auto-reclosed [  27.89 KB ]14/03/2022
EXN Voltage North Island Haywards Synchronous condenser 9 tripped [  27.89 KB ]14/03/2022
EXN Voltage South Island Livingstone Waitaki 1 Auto-reclosed [  27.9 KB ]08/03/2022
EXN Voltage South Island Manapouri generator tripped. [  27.86 KB ]08/03/2022
EXN Voltage North Island Marsden STC 6 Tripped [  27.84 KB ]05/03/2022
EXN Voltage North Island Redclyffe Wairakei Tripped [  27.87 KB ]03/03/2022
EXN Voltage South Island Tekapo Generation Tripped. [  27.86 KB ]02/03/2022
EXN Frequency National Huntly Generation Tripped [  28.57 KB ]01/03/2022
EXN Voltage North Island Ongarue Bus Tripped. [  27.86 KB ]01/03/2022
EXN Voltage South Island Manapouri generator tripped [  27.86 KB ]01/03/2022
FebruaryDate
EXN Voltage North Island Albany T4 Tripped [  27.84 KB ]26/02/2022
EXN Voltage South Island Invercargill Roxburgh 2 Auto-reclosed [  27.9 KB ]25/02/2022
EXN Voltage North Island Ohakune National Park Ongarue 1 Tripped [  27.93 KB ]24/02/2022
EXN Voltage North Island Stratford Unit tripped [  27.85 KB ]24/02/2022
EXN Voltage North Island Owhata Te Matai Tarukenga 1 Auto-reclosed [  27.9 KB ]24/02/2022
EXN Voltage South Island Coleridge Otira 1 Auto-reclosed [  27.88 KB ]23/02/2022
EXN Voltage South Island Islington Tekapo B Auto-reclosed [  27.9 KB ]22/02/2022
EXN Frequency South Island Tiwai Emergency Potline [  28.56 KB ]21/02/2022
EXN Voltage South Island Coleridge generation tripped [  27.86 KB ]19/02/2022
EXN Voltage North Island Matahina feeder tripped. [   27.85 KB ]17/02/2022
EXN Voltage North Island Wiri T2 Tripped [  27.84 KB ]16/02/2022
EXN Frequency South Island Tiwai Reduction Line [  28.55 KB ]16/02/2022
EXN Frequency South Island Tiwai Reduction Line [  28.56 KB ]16/02/2022
EXN Voltage South Island Aviemore generator tripped. [  27.86 KB ]15/02/2022
EXN Voltage North Island Ngatamariki generator tripped. [  27.85 KB ]15/02/2022
EXN Frequency National Tiwai Potline tripped [  28.56 KB ]15/02/2022
EXN Voltage North Island Bombay Hamilton 1 Auto-reclosed [  27.89 KB ]13/02/2022
EXN Voltage North Island Hangitiki T1 Tripped [  27.84 KB ]13/02/2022
EXN Voltage North Island Opunake Kapuni Stratford 2 Tripped [  27.88 KB ]13/02/2022
EXN Voltage North Island Hawera Patea Auto-reclosed [  27.89 KB ]13/02/2022
EXN Voltage North Island Opunake Kapuni Stratford 2 Tripped [  27.87 KB ]13/02/2022
EXN Voltage North Island Hinuera Karapiro Tripped [  27.85 KB ]13/02/2022
EXN Voltage North Island Bombay 110 kV Feeder Tripped [  27.86 KB ]13/02/2022
EXN Voltage North Island Hangitiki T1 Tripped [  27.84 KB ]13/02/2022
EXN Voltage North Island Masterton 33kV feeder fault [  27.85 KB ]12/02/2022
EXN Voltage South Island Atarau Reefton Inangahua 1 Auto-reclosed [  27.9 KB ]10/02/2022
EXN Voltage South Island Aviemore generation tripped. [  27.86 KB ]10/02/2022
EXN Voltage South Island Dobson Reefton Inangahua 2 Auto-reclosed [  27.9 KB ]10/02/2022
EXN Voltage South Island Kumara Otira 1 Tripped, Hokitika Kumara 1Tripped [  27.98 KB ]08/02/2022
EXN Voltage North Island Poihipi generation tripped. [  27.85 KB ]08/02/2022
EXN Voltage South Island Islington Livingstone 1 Auto-reclosed [  27.9 KB ]08/02/2022
EXN Voltage North Island Bombay Hamilton 2 Auto-reclosed [  27.89 KB ]05/02/2022
EXN Voltage South Island Islington Livingstone 1 Auto-reclosed [  27.9 KB ]05/02/2022
EXN Frequency National [  28.58 KB ]03/02/2022
EXN Voltage South Island Hokitika Kumara 1 Tripped [  27.86 KB ]02/02/2022
EXN Voltage North Island Silverdale Feeder Tripped. [  27.86 KB ]01/02/2022
JanuaryDate
EXN Voltage South Island Inangahua Robertson 1 Tripped [  27.86 KB ]30/01/2022
EXN Voltage North Island Tangiwai feeder trip [  27.84 KB ]28/01/2022
EXN Voltage South Island Islington Kikiwa 3 Auto-reclosed, WaiparaT13 Auto-reclosed, Culverden T23 Auto-reclosed [  28 KB ]26/01/2022
EXN Voltage North Island Kaikohe Maungatapere 2 Auto-reclosed [  27.9 KB ]25/01/2022
EXN Voltage North Island Kaikohe Maungatapere 1 Auto-reclosed [  27.9 KB ]25/01/2022
EXN Voltage North Island Bunnythorpe Paraparaumu Haywards 2Auto-reclosed [  27.93 KB ]25/01/2022
EXN Voltage North Island Aniwhenua Generation Tripped. [  27.87 KB ]25/01/2022
EXN Frequency National Tiwai Reduction Line Tripped [  28.58 KB ]25/01/2022
EXN Voltage North Island Te Mihi generator tripped [  27.84 KB ]22/01/2022
EXN Voltage North Island Bunnythorpe Tokaanu 1 Auto-reclosed [  27.9 KB ]22/01/2022
EXN Voltage South Island Clyde Roxburgh 2 Auto-reclosed [  27.9 KB ]19/01/2022
EXN Voltage South Island Clyde generator tripped [  27.86 KB ]19/01/2022
EXN Voltage North Island Kinleith generation tripped. [  27.87 KB ]19/01/2022
EXN Voltage North Island Kinleith Tarukenga 1 Tripped [  27.86 KB ]17/01/2022
EXN Voltage South Island Islington Livingstone 1 Auto-reclosed [  27.9 KB ]16/01/2022
EXN Voltage North Island Stratford generation tripped. [  27.84 KB ]14/01/2022
EXN Voltage South Island Islington Tekapo B Auto-reclosed [  27.9 KB ]13/01/2022
EXN Voltage North Island Rotokawa generation tripped [  27.86 KB ]12/01/2022
EXN Voltage North Island Bunnythorpe Tokaanu 2 Auto-reclosed [  27.89 KB ]10/01/2022
EXN Voltage South Island Kikiwa T2 Tripped [  27.85 KB ]10/01/2022
EXN Voltage South Island Kikiwa Stoke 3 Tripped [  27.85 KB ]06/01/2022
EXN Voltage North Island Poihipi generation tripped [  27.85 KB ]04/01/2022
EXN Voltage South Island Kikiwa T2 Tripped [  27.9 KB ]02/01/2022
EXN Voltage North Island Masterton feeder tripped. [  27.85 KB ]01/01/2022