New Zealand Gazette – 2006 – No. 141

Page 4992

✨ Electricity Reliability Performance Measures



4092

NEW ZEALAND GAZETTE, No. 141

17 NOVEMBER 2006

Class C

SAIDI SAIFI CAIDI
Target 31/03/07 60 0.85
31/03/2007 Avg forecast 60 0.85
31/03/2008 Avg forecast 57 0.75
31/03/2009 Avg forecast 56 0.72
31/03/2010 Avg forecast 55 0.69
31/03/2011 Avg forecast 55 0.69

Requirement 21 (3)

  1. Total number of interruptions, together with a breakdown of that total according to interruption class.
Interruption Class Number of Interruptions
2006 2005 2004 2003
MainPower Planned Shut-Down (Class B) 201 236 212
Unplanned Interruption (Class C) 107 58 82
Trans Power Planned Shut-Down (Class A) - 1 -
Unplanned Interruption (Class D) 3 2 1
Generation Unplanned Interruption (Class E) - - -
Generation Other Unplanned Interruption (Class F) - - -
Other Other Interruptions (Class G) - - -
Unplanned Interruption (Class G) - - -
Total Interruptions 311 297 295
  1. The total number of faults per 100 circuit kilometres of prescribed voltage electric line.
Nominal Voltage Faults per 100 km Total
2006 2005 2004 2003
33 kV 1.30 3.24 4.00 0.35
11 kV 3.06 1.48 2.01 3.23
TOTAL 2.92 1.66 2.18 2.97
  1. The total number of faults per 100 circuit kilometres of Underground prescribed voltage electric line, together with a breakdown of that total according to different nominal line voltages.
Nominal Voltage Faults per 100 km Underground
2006 2005 2004 2003
33 kV 40.50 - - -
11 kV 4.01 3.09 1.45 -
TOTAL 4.60 3.03 1.42 -
  1. The total number of faults per 100 circuit kilometres of Overhead prescribed voltage electric line, together with a breakdown of that total according to different nominal line voltages.
Nominal Voltage Faults per 100 km Overhead
2006 2005 2004 2003
33 kV 0.98 3.27 4.03 0.35
11 kV 3.03 1.44 2.03 3.34
TOTAL 2.85 1.60 2.19 3.06
  1. The SAIDI for the total of interruptions:

109.1754 115.5685 99.64 284.35

  1. The SAIDI for the total number of interruptions within each interruption class:
Network or Generation Owner Classification Minutes per Connected Customer
2006 2005 2004 2003
MainPower Planned Shut-Down (Class B) 33.3056 49.7782 48.59 60.83
Unplanned Interruption (Class C) 69.8694 49.5696 45.44 77.87
Trans Power Planned Shut-Down (Class A) - 13.2698 - 74.38
Unplanned Interruption (Class D) 6.0004 2.9509 6.12 71.27
Generation Unplanned Interruption (Class E) - - - -
Generation Other Unplanned Interruption (Class F) - - - -
Other Other Interruptions (Class G) - - - -
Unplanned Interruption (Class G) - - - -


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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2006, No 141


Gazette.govt.nz — PDF NZ Gazette 2006, No 141




✨ LLM interpretation of page content

🏭 Disclosure of Reliability Performance Measures (continued from previous page)

🏭 Trade, Customs & Industry
Electricity, Reliability, Interruptions, Performance Measures, Commerce Act, Disclosure Requirements