New Zealand Gazette – 2003 – No. 95

Page 2525

✨ Electricity Reliability Performance Measures



Reliability Performance Measures (Schedule 1, Part 5)

Para

CAIDI

Class Average CAIDI Targets CAIDI Targets Actual CAIDI
2004/08 2004 2003

16

CAIDI for total number of interruptions (= a/b)

where -

a = sum of interruption duration factors for all interruptions
b = sum of electricity consumers affected by each of those interruptions

| | | | 134 | 68 | 238 | 65 |

17

CAIDI Targets (= a/b)

Planned Interruptions

| Class B | 113 | 103 |
| Class C | 94 | 71 |

where -
Planned Interruptions

a = sum of interruption duration factors for all interruptions
b = projected number of electricity consumers affected by each of those interruptions

| Class B | 993,200 | 1,128,600 |
| | # 346 | 10,957 |

Unplanned Interruptions

a = sum of interruption duration factors for all interruptions
b = projected number of electricity consumers affected by each of those interruptions

| Class C | 4,563,754 | 7,473,840 |
| | 46,551 | 87,767 |

19

CAIDI for total number of interruptions within each interruption class (= a/b)

Class
Class A 312 ADJ(*) 11 265
Class B 147 259 58 106
Class C 113 43 179 71
Class D 309 9 1,366 5
Class F 0 0 0 0
Class G 0 0 0 0
Class H 3 0 0 2
Class I 0 0 0 0

CAIDI for total of interruptions

| | 134 | 68 | 238 | 66 |

where -
a = sum of interruption duration factors for all interruptions
b = sum of electricity consumers affected by each of those interruptions within that interruption class

| | | | | |
| Class A | 587,769 | 0 | 32,852 | 39,752 |
| Class B | 1,438,693 | 1,939,160 | 626,231 | 1,136,102 |
| Class C | 7,213,946 | 2,851,134 | 16,590,196 | 4,345,118 |
| Class D | 1,545,201 | 48,870 | 9,527,479 | 54,126 |
| Class E | 0 | 0 | 0 | 0 |
| Class F | 0 | 0 | 0 | 0 |
| Class G | 0 | 0 | 0 | 0 |
| Class H | 1,265 | 0 | 0 | 0 |
| Class I | 0 | 0 | 0 | 0 |

Class
Class A 1,883 0 2,865 462
Class B 9,795 7,475 10,841 10,714
Class C 64,049 58,178 93,370 61,681
Class D 5,000 5,420 6,955 11,743
Class E 0 0 0 0
Class F 0 0 0 0
Class G 0 0 0 0
Class H 415 0 0 0
Class I 0 0 0 0


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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2003, No 95


Gazette.govt.nz — PDF NZ Gazette 2003, No 95




✨ LLM interpretation of page content

🏗️ Reliability Performance Measures for Electricity Faults (continued from previous page)

🏗️ Infrastructure & Public Works
Electricity, Faults, Reliability, Performance Measures, CAIDI, Interruptions, Planned Interruptions, Unplanned Interruptions, Consumer Impact