✨ Reliability Performance Measures




3.3 RELIABILITY PERFORMANCE MEASURES

For the six months ended 30 June 2003

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 Jan03-Jun03 Jan02-Dec02 Jan01-Dec01 Apr00-Dec00
Unplanned interruption measure
(within distribution system)
Alfriston - - - 0.3333
Ashhurst - # # 0.0078
Auckland Central 0.0007 0.0024 0.0013 0.0013
Bruce McLaren ^ - - - -
Dannevirke - # # -
Drury - - 0.0167 -
Feilding - # # 0.0009
Foxton - # # -
Hastings - # # 0.0006
Hunua - - - -
Kakariki - # # -
Kairaga - # # -
Kingseat - - # -
Levin - # # 0.0007
Longburn - # # -
Mangaroa - # # -
Mangatainoka - # # -
Oroua Downs - # # -
Pahiatua - # # 0.0022
Palmerston North - # # -
Pukekohe - - - -
Ramarama - - - -
Takapau - - - -
Tuakau - - - -
Waiuku ^ - - - -
Wellington - 0.0040 0.0105 0.0053

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 Waimaku 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 2003, No 163


Gazette.govt.nz PDF NZ Gazette 2003, No 163





✨ LLM interpretation of page content

πŸ’° Performance Measures and Statistics (continued from previous page)

πŸ’° Finance & Revenue
Financial Performance, Efficiency Measures, Accounting Return, Profit Rates, Direct Line Costs, Indirect Line Costs, Energy Delivery, Load Factor, Unaccounted-for Gas Ratio, System Length, Gas Pipelines, UnitedNetworks, PowerCo