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Quick Facts


As at 31/03/2011


Total Number34,247


Maximum Demand



Physical Area Covered by Assets

Square Kilometres11,180


Km of Line & Cable

66kV Sub Transmission Overhead53.04 km
66kV Sub Transmission Underground-
33kV Sub Transmission Overhead229 km
33kV Sub Transmission Underground3 km
11kV Distribution Overhead2741 km
11kV Distribution Underground212 km
22kV Distribution Overhead578 km
22kV Distribution Underground23 km



For Year Ending - 31/03/2012



Outage Statistics  


System Average Interruption Duration Index    120

(Minutes/Connected Customers) 


System Average Interruption Frequency Index1.1

(Interruptions/Connected Customer) 


Customer Average Interruption Duration Index110
(Minutes/Connected Customers Effected by a Fault)


MainPower New Zealand Limited and Utility Online

5 High Street
PO Box 346
Rangiora 7440
New Zealand

Ph 03 311 8300
Fax 03 311 8301


Faults within the MainPower area: Ph 0508 60 70 80