✨ Electricity Reliability Performance Measures




420 NEW ZEALAND GAZETTE, No. 18 19 JANUARY 2005

targets 2005-09 2005 2004 2003 2002 2001
  1. SAIDI - total interruptions 222.4 | 203.8 | 208.2 | 178.7 |

9.- 11. SAIDI per interruption class consumer minutes
Class A - Transpower Planned - | - | - | - |
(a) Class B - MLL Planned 57.4 | 59.1 | 52.5 | 74.1 | 37.9 | 57.7 |
(b) Class C - MLL Unplanned 112.2 | 115.5 | 141.2 | 125.7 | 148.0 | 121.0 |
Class D - Transpower Unplanned 28.7 | 5.9 | 23.5 | - | - |
Class E - ECNZ Unplanned - | - | - | - |
Class F - Other Generation - | - | - | - |
Class G - Other - | - | - | - |

  1. SAIFI - total interruptions 3.4 | 2.1 | 2.8 | 2.2 |

13.- 15. SAIFI per interruption class consumer minutes
Class A - Transpower Planned - | - | - | - |
(a) Class B - MLL Planned 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.4 |
(b) Class C - MLL Unplanned 1.5 | 1.5 | 1.4 | 1.5 | 1.6 | 1.8 |
Class D - Transpower Unplanned 1.7 | 0.3 | 1.0 | - |
Class E - ECNZ Unplanned - | - | - | - |
Class F - Other Generation - | - | - | - |
Class G - Other - | - | - | - |

  1. CAIDI - total interruptions 65.7 | 96.1 | 73.6 | 82.2 |

17.- 19. CAIDI per interruption class consumer minutes
Class A - Transpower Planned - | - | - | - |
Class B - MLL Planned 170.9 | 170.9 | 156.0 | 232.6 | 158.4 | 163.6 |
Class C - MLL Unplanned 77.0 | 77.0 | 101.3 | 83.1 | 90.9 | 66.5 |
Class D - Transpower Unplanned 17.3 | 19.0 | 24.0 | - |
Class E - ECNZ Unplanned - | - | - | - |
Class F - Other Generation - | - | - | - |
Class G - Other - | - | - | - |

All SAIDI, SAIFI and CAIDI figures have been calculated from average, rather than year end, consumer numbers. This is the methodology prescribed in the Commerce Act (Electricity Industry Distribution Threshold) Notice 2004. Prior years figures have been restated in accord with that method although the changes are not material.



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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2005, No 18


Gazette.govt.nz PDF NZ Gazette 2005, No 18





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