✨ Energy Reliability Statistics




29 NOVEMBER 2004
NEW ZEALAND GAZETTE, No. 155
3843

3.3 RELIABILITY PERFORMANCE MEASURES

For the year ended 30 June 2004

Schedule 1 – PART 4

Unplanned interruptions in distribution systems

a) The measure of unplanned interruptions (other than those directly resulting from unplanned interruptions of a transmission system) calculated by the formula a/b where:

a = the sum obtained by adding together the number of customer-hours lost during each interruption; and

b = the total number of customers being supplied by means of the system.
System Unplanned interruption measure (within distribution system)
July 2003 to June 2004
Alfriston -
Ashhurst -
Auckland Central 0.0020
Bruce McLaren* -
Dannevirke -
Drury -
Feilding -
Foxton -
Hastings -
Hunua -
Kakariki -
Kairanga -
Kingseat -
Levin -
Longburn -
Mangaora -
Mangatainoka -
Oroua Downs -
Pahiatua -
Palmerston North -
Pukekohe -
Ramarama -
Takapau -
Tuakau -
Waioki -
Waiuku* -
Wellington -

On systems where the number of customers affected has been recorded but the duration of each interruption is not recorded and the local engineer has estimated the average length of the interruptions.

Data indicated by # has been amalgamated into the Wellington system.

* During 2002 the Waimauku and Waiuku gates were removed. Bruce McLaren has been interconnected with other Auckland Central Networks.



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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2004, No 155


Gazette.govt.nz PDF NZ Gazette 2004, No 155





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Energy Delivery, System Length, Gas Pipelines, Performance Measures, Statistics