MainPower NZ Ltd

Please note, at COVID-19 Alert Level 1, all planned outages will proceed as scheduled.


We recognise outages may be difficult for some customers to manage, however our priority is ensuring we can maintain a safe, reliable, quality supply of electricity throughout the network.


MainPower carries out regular maintenance work on the network. This work is essential for ensuring a safe, reliable supply of electricity is maintained.

If you will be affected by a planned outage, your electricity retailer will send you a letter in advance, so you can make other arrangements.



Planned outages for Sunday 9 August

No current outages

Date Location Reason Power off Power on Status Ref Comments
10 Aug 20 Rotherham Road North, Rotherham Network Maintenance 09:00 17:00 Confirmed 81615
10 Aug 20 Whites Road, Ohoka Transformer Upgrade 12:30 16:00 Confirmed 81572
10 Aug 20 Kiwi Avenue, Waikuku Beach Service Box Replacement 09:00 16:00 Confirmed 81593
10 Aug 20 Amuri Ave, Hanmer Springs Network Upgrade 12:00 17:00 Confirmed 81579
10 Aug 20 Bradleys Road, Ohoka Transformer Upgrade 08:30 12:00 Confirmed 81568
10 Aug 20 Clarence Street, Waiau Network Maintenance 09:00 17:00 Confirmed 81616
10 Aug 20 Whites Road, Ohoka Transformer Upgrade 8::30 12:00 Confirmed 81571
10 Aug 20 Bradleys Road, Ohoka Transformer Upgrade 12:00 16:00 Confirmed 81574
10 Aug 20 Lewis Pass Road, Hanmer Springs Network Upgrade 09:00 16:00 Confirmed 81684
10 Aug 20 Mandeville Road, Mandeville Transformer Upgrade 12:00 16:00 Confirmed 80567
10 Aug 20 Mchughs Road, Mandeville Transformer Upgrade 08:30 12:00 Confirmed 81566
10 Aug 20 Whites Road, Ohoka Transformer Upgrade 12:30 16:00 Confirmed 81569
10 Aug 20 Bradleys Road, Ohoka Transformer Upgrade 08:30 12:00 Confirmed 81573
11 Aug 20 Mouse Point Road Culverden, Culverden Network Maintenance 07:30 18:00 Pending 81582 & 81584 & 81613
11 Aug 20 West Belt, Rangiora Service Box Replacement 09:00 16:00 Pending 81598
11 Aug 20 Montrose Road, Culverden Pole Replacement 09:00 16:00 Confirmed 81594
12 Aug 20 Mays Road, Leithfield Service Box Relocation 09:00 16:00 Pending 81599
12 Aug 20 Mouse Point Road, Culverden Network Alterations 07:30 18:00 Pending 81623
13 Aug 20 Lewis Pass Road, Hanmer Springs Network Upgrade 18:00 18:30 Pending 81587
13 Aug 20 Keldon Avenue, Rangiora Service Box Replacement 09:00 16:00 Pending 81600
13 Aug 20 Lewis Pass Road, Hanmer Springs Network Maintenance 07:30 18:00 Pending 81590 & 81589
13 Aug 20 Whitefield Street, Kaiapoi Switchgear Replacement 16:00 18:00 Pending 81504
13 Aug 20 Amuri Ave, Hanmer Springs Network Upgrade 21:00 21:30 Pending 81636
14 Aug 20 Rangiora Woodend Road, Woodend Transformer Upgrade 10:00 14:00 Pending 81604
14 Aug 20 Coutts Island Road, Belfast Transformer Upgrade 13:00 16:00 Pending 81603
14 Aug 20 Whitefield Street, Kaiapoi Switchgear Replacement 10:00 16:00 Pending 81505
14 Aug 20 Baileys Road, Mandeville Transformer Upgrade 13:00 16:00 Pending 81605
14 Aug 20 Revells Road, Tuahiwi Transformer Upgrade 13:00 16:00 Pending 81602
14 Aug 20 Argelins Road, Hanmer Springs Network Upgrade 09:00 12:00 Pending 81698
14 Aug 20 Rotherham Road North, Rotherham Network Maintenance 09:00 16:00 Pending 81618
14 Aug 20 Rangiora-woodend Road, Woodend Service Box Relocation 08:00 16:00 Pending 81620
14 Aug 20 Baileys Road, Mandeville Transformer Upgrade 13:00 16:00 Pending 81601
14 Aug 20 Clarence Street, Waiau Network Maintenance 09:00 16:00 Pending 81617
16 Aug 20 Lineside Road, Flaxton Cable Alterations 09:00 14:00 Pending 81651
17 Aug 20 Virginia Road, Hawarden Pole Maintenance 09:00 16:00 Pending 81626
17 Aug 20 Sandersons Road, Rotherham Pole Replacement 09:00 16:00 Pending 81653
17 Aug 20 Constitutuion Road, Rotherham Pole Replacement 09:00 12:00 Pending 81652
17 Aug 20 Ashworths Road, Leithfield Pole Replacement 09:00 16:00 Confirmed 81627
18 Aug 20 Whitefield Street, Kaiapoi Switchgear Replacement 08:30 17:00 Pending 81664
18 Aug 20 Balcairn Amberley Road, Balcairn Network Reconfiguration 05:00 16:00 Pending 81660
18 Aug 20 Harrod Place, Rangiora Switchgear Replacement 07:45 18:30 Pending 81659
19 Aug 20 Dalmeny Road, Hawarden Transformer Site New Installation 09:00 16:00 Pending 81668
19 Aug 20 Pembertons Road, Sefton Line New 09:00 16:00 Pending 81670
19 Aug 20 Rangiora Woodend Road, Woodend Transformer Site New Installation 09:00 16:00 Pending 81669
20 Aug 20 Woods Road, Scargill Pole Maintenance 09:00 12:00 Pending 81671
20 Aug 20 Glenkens Road, Cheviot Pole Replacement 09:00 16:00 Pending 81674
20 Aug 20 Kennedys Road, Springbank Pole Replacement 09:00 15:00 Pending 81673
20 Aug 20 Scotswood Place, Rangiora Service Box Replacement 09:00 17:00 Pending 81675
20 Aug 20 Boundary Road, Ashley Pole Replacement 09:00 13:00 Pending 81672
21 Aug 20 Heathfield Road, Greta Valley Network Maintenance 09:00 17:00 Pending 81677
21 Aug 20 Oxford Road, Fernside Cable Livening 08:30 17:00 Pending 81676
21 Aug 20 Lambies Road, Scargill Pole Replacement 09:00 16:00 Pending 81680
21 Aug 20 Happy Valley Road, Motunau Beach Transformer Upgrade 09:00 15:00 Pending 81679
24 Aug 20 Plaskett Road, Fernside Pole Replacement 09:00 16:00 Pending 81683
24 Aug 20 Foothill Road, Okuku Pole Repairs 08:30 16:00 Pending 81682
24 Aug 20 Rotherham Road North, Waiau Pole Relocation 08:30 16:00 Pending 81681
25 Aug 20 Main North Road, Kainga Tree Cutting 08:30 13:00 Pending 81687
25 Aug 20 Mckenzie Place, Waikuku Beach Service Box Replacement 09:00 16:00 Pending 81690
25 Aug 20 Durham Street, Rangiora Switchgear Replacement 09:00 17:00 Pending 81688
25 Aug 20 Allin Drive, Waikuku Service Box Replacement 09:00 16:00 Pending 81691
25 Aug 20 Ethelton Road, Cheviot Pole Replacement 09:00 16:00 Pending 81689
25 Aug 20 Dunns Avenue, Pines Beach Pole Replacement 09:00 16:00 Pending 81686
26 Aug 20 Carrs Road, Loburn Pole Replacement 09:00 16:00 Pending 81702
26 Aug 20 Lacy Gate Place, Woodend Service Box Replacement 09:00 16:00 Pending 81692
26 Aug 20 Tekoa Road, Culverden Pole Replacement 09:00 16:00 Pending 81694
26 Aug 20 Greta Road, Greta Valley Pole Replacement 09:00 16:00 Pending 81695
26 Aug 20 Happy Valley Road, Motunau Beach Pole Replacement 09:00 12:00 Pending 81699
26 Aug 20 Happy Valley Road, Motunau Beach Pole Replacement 09:00 16:30 Pending 81700
26 Aug 20 Happy Valley Road, Greta Valley Pole Replacement 09:00 16:30 Pending 81701
26 Aug 20 Broad Road, Balcairn Pole Repairs 09:00 12:00 Pending 81693
28 Aug 20 Whitefield Street, Kaiapoi Switchgear Replacement 09:00 16:00 Pending 91667
Show all
Date Location Reason Power off Power on Status Ref Comments
07 Aug 20 Leamington Road, Cheviot Pole Replacement 09:00 16:00 Confirmed 81565
07 Aug 20 Greta Road, Greta Valley Pole Replacement 09:00 16:00 Confirmed 81570 Deferred from 06/08/2020
06 Aug 20 Kinley Street, Rangiora Service Box Replacement 09:00 16:00 Completed 81521
06 Aug 20 Scargill Valley Road, Scargill Pole Replacement 09:00 16:00 Cancelled 81541 Deferred from 04/08/2020
06 Aug 20 Greta Road, Greta Valley Pole Replacement 09:00 16:00 Confirmed 81570 Deferred to 07/08/2020
06 Aug 20 Henrys Ford Road, Loburn Transformer Upgrade 08:30 16:00 Confirmed 81559
06 Aug 20 Clothiers Road, Eyreton Transformer Upgrade 09:00 12:30 Confirmed 81561
06 Aug 20 Rotherham Road North, Rotherham Network Maintenance 09:00 16:00 Completed 81614
06 Aug 20 Brueres Road, Sefton Transformer Upgrade 12:30 16:00 Completed 81562
06 Aug 20 Claverley Road, Hundalee Pole Replacement 09:00 16:00 Completed 81563
06 Aug 20 Jacksons Road, Ohoka Transformer Upgrade 12:30 16:00 Completed 81560
05 Aug 20 Campbell Terrace, Motunau Beach Pole Replacement 09:00 16:00 Completed 81534
05 Aug 20 Scargill Valley Road, Greta Valley Pole Replacement 09:30 16:00 Completed 81529
05 Aug 20 Waikari Valley Road, Scargill Pole Repairs 12:00 16:00 Confirmed 81542
05 Aug 20 Barracks Road, Oxford Pole & Transformer Site New Installation 09:00 16:00 Completed 81520
04 Aug 20 Whitefield Street, Kaiapoi Switchgear Replacement 09:00 16:00 Confirmed 81497, 81498
04 Aug 20 Blackett Street, Rangiora Service Box Replacement 09:00 16:00 Confirmed 81496
04 Aug 20 Scargill Valley Road, Scargill Pole Replacement 09:00 16:00 Cancelled 81541 Deferred to 06/08/2020
04 Aug 20 Inland Road, Waiau Pole Replacement 09:00 16:00 Confirmed 81547 & 81549
04 Aug 20 Cust Road, Cust Pole Replacement 09:00 16:00 Confirmed 81539
04 Aug 20 Lewis Crescent, Cheviot Pole Replacement 09:00 16:00 Confirmed 81528
03 Aug 20 Feldwick Drive, Kaiapoi Service Box Relocation 09:00 16:00 Confirmed 81538
03 Aug 20 Scargill Valley Road, Greta Valley Pole Replacement 09:30 16:00 Confirmed 81530
03 Aug 20 Lees Valley Road, Oxford Pole Replacement 09:00 16:00 Confirmed 81519
31 Jul 20 Scargill Valley Road, Greta Valley Pole Replacement 09:30 16:00 Completed 81522
31 Jul 20 Regent Avenue, Rangiora 09:00 16:00 Cancelled 81484
31 Jul 20 Riverview Road, Domett Tree Cutting 08:00 16:30 Completed 81537
31 Jul 20 Rex Place, Rangiora Service Box Replacement 09:00 16:00 Cancelled 81485
31 Jul 20 Woodend Beach Road, Woodemd Pole Replacement 09:00 16:00 Completed 81527
31 Jul 20 Motunau Beach Raod, Motunau Beach Pole Replacement 09:00 15:00 Completed 81518
30 Jul 20 Stoke School Road, Springbank Pole & Transformer Site New Installation 13:00 16:00 Confirmed 81515
30 Jul 20 Bush Road, Oxford Pole Replacement 09:00 16:00 Confirmed 81526
30 Jul 20 Amuri Ave, Hanmer Springs Network Alterations 09:00 16:00 Cancelled 81550
30 Jul 20 Heathstock Road, Hawarden Pole Replacement 09:00 13:00 Confirmed 81517
29 Jul 20 Ashworths Road, Leithfield Pole Replacement 09:00 16:00 Cancelled 81482
29 Jul 20 Ashworths Road, Amberley 09:00 16:00 Confirmed 81481
29 Jul 20 Patersons Road, Greta Valley Pole Maintenance 09:00 16:00 Completed 81511
29 Jul 20 Main Street, Oxford Pole Replacement 09:00 16:00 Confirmed 81525
29 Jul 20 Douglas Street, Rangiora Service Box Replacement 09:00 16:00 Confirmed 81483
28 Jul 20 Lake Sumner Road, Hawarden Line Maintenance 09:00 16:00 Confirmed 81509
28 Jul 20 Waikari Valley Road, Waikari Pole Replacement 09:00 16:30 Confirmed 81479
28 Jul 20 Te Wanikau, Oaro Pole Replacement 09:00 16:00 Cancelled 81492
28 Jul 20 Mckenzie Road, Waipara Cable Alterations 06:40 20:00 Completed 81430
28 Jul 20 Caverhill Road, Cheviot Pole Replacement 10:00 15:00 Confirmed 81510
27 Jul 20 Cable Livening 09:00 16:00 Confirmed 81473
27 Jul 20 Te Wanikau, Oaro Pole Replacement 09:00 16:00 Cancelled 81486
27 Jul 20 No 10 Road, Swannanoa Pole Maintenance 08:30 16:00 Cancelled 81494
27 Jul 20 Raven Quay, Kaiapoi Service Box Replacement 09:00 14:00 Completed 81474
27 Jul 20 Pine Avenue, Christchurch Pole Maintenance 09:00 16:00 Confirmed 81501
27 Jul 20 Glendhu Road, Greta Valley Pole Maintenance 09:00 16:00 Completed 81502
24 Jul 20 Moody Street, Gore Bay Line Recovery 09:00 16:00 Confirmed 81487
24 Jul 20 Domain Road, Oxford Line Recovery 09:00 16:00 Completed 81472
24 Jul 20 Lilly Road, Fernside Pole & Transformer Site New Installation 09:00 16:00 Confirmed 81476
24 Jul 20 Featherston Avenue, Kaiapoi Pole Relocation 09:00 16:00 Confirmed 81491
24 Jul 20 State Highway 1, Kaikoura Pole Replacement 09:00 16:00 Cancelled 81464
24 Jul 20 Terrace Road, Leithfield Transformer Site New Installation 09:00 16:00 Completed 81468
23 Jul 20 Valour Drive, Rangiora Cable Maintenance 09:00 16:00 Completed 81449
23 Jul 20 Hurunui Bluff Road, Hurunui Pole Replacement 09:00 16:00 Completed 81451
23 Jul 20 Leggitts Road, Waikuku Tree Cutting 08:30 12:00 Completed 81480
23 Jul 20 Glenmark Drive, Waipara Pole Replacement 09:00 16:00 Completed 81456
23 Jul 20 Mt Fyffe Road, Kaikoura Line Maintenance 09:00 16:00 Cancelled 81461
23 Jul 20 Karaka Road, Hawarden Pole Replacement 09:00 17:00 Completed 81448
23 Jul 20 Sisters Road, Parnassus Pole Replacement 09:00 16:00 Completed 81450
22 Jul 20 Motunau Beach Road, Motunau Beach Pole Replacement 09:30 13:00 Completed 81445
22 Jul 20 Postmans Road, Kaikoura Cable Livening 10:00 16:00 Completed 81536
22 Jul 20 West Belt, Rangiora Pole Replacement 09:00 16:00 Completed 81428
22 Jul 20 State Highway 1, Kaikoura Pole Replacement 09:00 16:00 Cancelled 81444
22 Jul 20 South Eyre Road, Eyreton Switchgear Installation 09:00 15:00 Completed 81441
22 Jul 20 West Belt, Rangiora Pole Replacement 09:00 16:00 Completed 81429
21 Jul 20 Esplanade, Kaikoura Service Box Replacement 10:30 14:30 Confirmed 81500
21 Jul 20 Hilton Street, Kaiapoi Cable Livening 00:00 02:00 Completed 81442
21 Jul 20 Birch Hill Road, Okuku Line Reconduct 08:30 16:00 Completed 81433
21 Jul 20 Oxford Road, Oxford Tree Cutting 08:30 12:00 Pending 81437
21 Jul 20 Church Street, Rangiora Pole Replacement 09:00 16:00 Confirmed 81427
21 Jul 20 White Street, Rangiora 09:00 16:00 Confirmed 81425
20 Jul 20 Mounseys Road, Oxford Network Maintenance 08:30 16:00 Completed 81418
20 Jul 20 Wolffs Road, Horrellville Cable Livening 09:00 16:00 Completed 81499
20 Jul 20 Parsonage Road, Woodend Cable Livening 09:00 16:00 Completed 81426
20 Jul 20 Birch Hill Road, Okuku Pole Replacement 08:30 16:00 Completed 81432
19 Jul 20 Courtenay Drive, Kaiapoi Switchgear Maintenance 09:30 15:00 Completed 81403
17 Jul 20 Mt Arden Road, Hawarden Pole Replacement 09:00 16:00 Completed 81415
16 Jul 20 Kings Road, Leithfield Beach Line Maintenance 09:00 13:00 Completed 81416
16 Jul 20 Omihi Road, Omihi Pole Replacement 09:30 13:00 Completed 81424
16 Jul 20 South Eyre Road, Eyreton Line Maintenance 13:00 15:00 Cancelled 81417
16 Jul 20 Kensington Avenue, Rangiora Pole Replacement 09:00 16:00 Completed 81423
15 Jul 20 White Street, Rangiora Pole Replacement 09:00 16:00 Completed 81422
15 Jul 20 Waiau West Road, Cheviot Line Reconduct 09:00 16:00 Completed 81407
14 Jul 20 Charles Street, Rangiora 09:00 16:00 Completed 81421
14 Jul 20 Jacks Pass Road, Hanmer Springs Service Box Replacement 09:00 16:00 Completed 81508
14 Jul 20 Lambies Road, Scargill Pole Replacement 09:00 16:00 Completed 81394
14 Jul 20 Waiau West Road, Cheviot Line Reconduct 09:00 16:00 Completed 81406
13 Jul 20 Parnham Road, Scargill Pole Replacement 09:00 16:00 Completed 81393
13 Jul 20 Chatterton Road, Hanmer Springs Pole Replacement 09:00 16:00 Completed 81404
10 Jul 20 Glenmark Drive, Waipara Pole Replacement 09:00 16:00 Completed 81398 Deferred from 09/07/2020
10 Jul 20 Butchers Road, Kaiapoi Pole Maintenance 09:00 16:00 Completed 81397
10 Jul 20 Island Road, Kaiapoi Cable Livening 09:00 16:00 Completed 81396
10 Jul 20 Butchers Road, Kaiapoi Pole Replacement 09:00 16:00 Completed 81395 Deferred from 09/07/2020
10 Jul 20 Tram Road, Clarkville Pole Replacement 09:00 12:00 Completed 81420
10 Jul 20 Browns Road, Swananoa Pole Replacement 13:00 16:00 Completed 81419
09 Jul 20 Butchers Road, Kaiapoi Pole Replacement 09:00 16:00 Completed 81395 Deferred to 10/07/2020
09 Jul 20 Scargill Valley Road, Scargill Pole Replacement 09:00 16:00 Completed 81392
09 Jul 20 Glenmark Drive, Waipara Pole Replacement 09:00 16:00 Completed 81398 Deferred to 10/07/2020
08 Jul 20 Carrs Road, Loburn Pole Replacement 09:00 16:00 Completed 81431
Show all

Outages FAQS

What should I do during a planned power outage?

If you will be affected by a planned outage, your electricity retailer will send you a letter in advance, so you can make other arrangements.

Planned outages are also listed on our website, visit the planned outages page.

What should I do if I have no hot water?

After an outage, it can take up to 6 hours for a hot water cylinder to reheat once power has been restored after an outage. If you have no hot water:

  • Check that your hot water cylinder is on.
  • If your hot water cylinder is heated by gas then contact a registered plumber.
  • If your hot water cylinder is heated by electricity then please call MainPower on 0800 30 90 80.


What is ripple control?

MainPower may use ripple control at times to manage load on our network. If you have a ‘controlled circuit’ in your home it will probably be connected to your hot water cylinder. The ripple relay is used to switch water heater power off at peak times - like on cold winter nights when demand for electricity is highest and at times when faults mean less power is available in the local area. If you are on a controlled rate this will show on your electricity bill, you will usually receive a cheaper electricity rate if you are on a controlled tariff.


MainPower provide a 24 hour fault response service. Please note, some fault response services may incur a cost, though this is generally only the case when the customer's property or actions have caused the fault.

Who is a priority customer?

Special consideration is given to the continuity of supply to customers whose health or livelihood could be adversely affected by an interruption. Priority customers include those who maintain essential services as well as medically dependent customers.


Customers with serious medical conditions, who rely on continuity of supply to support life, are treated as priority customers. Every effort is made to maintain continuity of supply and, if necessary, to advise them of any interruptions to supply so that alternate arrangements can be made. If you are a medically dependent customer, please ensure we are aware of your needs. You can provide this information online. Or, contact us on 0800 30 90 80.

Why do power outages occur?

There are two types of power outage, planned and unplanned.


Planned power outages occur when we need to complete maintenance work on the network. If you will be affected by a planned outage, you will receive a notification from your chosen electricity retailer in advance.


Unplanned power outages occur when unforeseen circumstances cause damage to the network (e.g. car accidents, tree branches or other debris being blown into power lines etc.).

Does MainPower charge for no-power callouts?

MainPower provides a 24-hour fault response service. When a customer’s property or actions have caused the fault, the responsible customer will be charged a call out fee.


Call outs caused by a MainPower network fault will not incur a fee.


MainPower call out fees

  • During normal working hours (7:30 a.m. – 5:00 p.m. Monday-Friday)
    • $176+GST minimum for up to two hours, plus travel (charged per kilometer)
    • Additional charges will be billed for any equipment required (e.g. replacement power pole) and time exceeding the initial two hour call out period. Additional time between 7:30am-5pm will be charged at our standard rate ($88+GST per hour).
  • After-hours
    • $264+GST minimum for up to two hours, plus travel (charged per kilometer)
    • Additional charges will be billed for any equipment required (e.g. replacement power pole) and time exceeding the initial two hour call out period. Time will be charged at our after-hours rate ($132+GST per hour).

All chargeable call outs will incur a minimum fee for a two hour period (travel time inclusive). Where we are required to stand staff down as a result of attendance at a fault we reserve the right to charge a stand down fee.

Does MainPower control irrigator load?

Irrigators on the MainPower network may be connected to our emergency load control system. Houses, sheds etc. are not connected to the emergency load control system.


Across our network, irrigators can use a large amount of electricity. In situations where MainPower needs to decrease the load on the network, we may turn off the electricity supply to irrigators. This is to ensure continued supply across the region and only happens in extremely rare, emergency situations. If it is necessary to turn off irrigators, MainPower will try to contact affected customers, however this may not always be possible in short-notice, emergency situations.


What can my business do to be prepared for a power outage?

  • Check your terms and conditions with your electricity retailer - it will detail notification periods for planned electricity network outages and any compensation clauses.
  • Check your insurance provisions – how long does power need to be off before the policy covers you.
  • Have a good back up plan and ensure your staff are trained.
  • Consider the use of manual eftpos and credit card options.
  • Can your site be supplied by a generator – know your capacity requirements, connection options and generator hire contact details.
  • Have alternative locations for storage of perishable goods and freezer blankets.
  • Have back-up alternative locations to work from and phone diversions to mobiles contingency in place and when the power comes on understand what equipment needs resetting.