New Zealand Gazette – 2003 – No. 95

Page 2524

✨ Electricity Reliability Performance Measures



Reliability Performance Measures (Schedule 1, Part 5)

Para

SAIFI

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

12

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

where -

a = sum of electricity consumers affected by each of those interruptions

b = Total consumers

| | | | | 3.19 | 2.78 | 4.39 | 3.55 |

13, 14

SAIFI Targets (=a/b)

Planned Interruptions

| Class B | 0.34 | 0.39 |
| Class C | .95 | 2.47 |

Unplanned Interruptions

where -

Planned Interruptions
a = projected number of electricity consumers affected by each of those interruptions

b = Projected total customers

| | | 8,442 | 10,784 |
| | | 24,830 | 25,080 |

Unplanned Interruptions
a = projected number of electricity consumers affected by each of those interruptions

b = Projected total customers

| Class C | | 48,419 | 61,822 |
| | | 24,830 | 25,080 |

15

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

| Class A | 0.07 | 0.00 | 0.11 | 0.02 |
| Class B | 0.39 | 0.29 | 0.42 | 0.45 |
| Class C | 2.54 | 2.28 | 3.59 | 2.58 |
| Class D | 0.20 | 0.21 | 0.27 | 0.50 |
| Class E | 0.00 | 0.00 | 0.00 | 0.00 |
| Class F | 0.00 | 0.00 | 0.00 | 0.00 |
| Class G | 0.00 | 0.00 | 0.00 | 0.00 |
| Class H | 0.00 | 0.00 | 0.00 | 0.00 |
| Class I | 0.00 | 0.00 | 0.00 | 0.00 |

SAIFI for total of interruptions

| | | 3.15 | 2.78 | 4.39 | 3.55 |

where -

a = sum of electricity consumers affected by each of those interruptions within that interruption class

| Class A | | 1,883 | 0 | 2,889 | 462 |
| Class B | | 9,765 | 7,478 | 10,841 | 10,714 |
| Class C | | 64,049 | 58,178 | 93,310 | 61,081 |
| Class D | | 5,000 | 5,430 | 6,955 | 11,743 |
| Class E | | 0 | 0 | 0 | 0 |
| Class F | | 0 | 0 | 0 | 0 |
| Class G | | 0 | 0 | 0 | 0 |
| Class H | | 0 | 0 | 0 | 0 |
| Class I | | 0 | 0 | 0 | 0 |

b = Total consumers

| | | 25,264 | 25,552 | 25,950 | 23,894 |



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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, SAIFI, Interruptions, Planned Interruptions, Unplanned Interruptions, Consumer Impact