Power line surveys in Kaikōura and Ashley

MainPower will be carrying out aerial power line asset inspections during the month of December.

The inspections will be conducted using a camera mounted on a helicopter flying at low level close to the power lines. The work will not affect electricity supply.

Areas where inspections will be taking place:

  • Kaikōura district (from Conway Flat Road up to South Bay)
  • Waimakariri district, Ashley (from
  • Whiterock Road to Upper Sefton Road)

This work is dependent on suitable weather conditions, and will be conducted between Tuesday 1 December and Tuesday 15 December 2020.

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Outage notifications

Maintenance - Swannanoa Substation

Due to maintenance of Swannanoa Substation streetlights will remain switched on in the greater Swannaona area from Sunday 21/09/25 trough to Saturday morning 11/10/25

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

Outage notifications

Maintenance - Swannanoa Substation

Due to maintenance of Swannanoa Substation streetlights will remain switched on in the greater Swannaona area from Sunday 21/09/25 trough to Saturday morning 11/10/25

Is your outage not listed?

Troubleshoot your outage
Treat all lines as live during the outage period; power may be restored at any time. If you require further information, please call MainPower’s 24-hour faults line. To report an emergency, call 111.

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