New Zealand Gazette – 2006 – No. 133

Page 3868

✨ Electricity Network Statistics



Network Waitaki Limited Lines Business

Reliability and Performance Measures

System Average Interruption Duration Index (SAIDI)

Class 2007/11 (Target) 2006 2005 2004 2003
SAIDI for total number of interruptions Overall 103 (Target: 103) 102.31 104.85 157.0 91.6
SAIDI for total number of interruptions within each interruption class (= a/b) Class A 0.00 0.00 0.00 0.0 0.0
Class B 59 49.79 61.14 36.7 28.6
Class C 45 46.95 43.71 150.3 62.7
Class D - 5.57 0.00 0.0 0.0
Class E = I - 0.00 0.00 0.0 0.0
  • a = sum of interruption duration factors for all interruptions within the particular interruption class

| | Class A | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 |
| | Class B | 632,850 | 604,850 | 597,824 | 421,371 | 537,116 |
| | Class C | 544,365 | 544,365 | 563,694 | 1,727,489 | 707,489 |
| | Class D | 0 | 0 | 0 | 0 | 0 |
| | Class E = I | 0 | 0 | 0 | 0 | 0 |

  • b = Total Consumers

| | | 12,397 | 12,097 | 12,006 | 11,975 | 11,493 | 11,400 |

System Average Interruption Frequency Index (SAIFI)

| | Class | 2006/11 | 2007 (Target) | 2006 | 2005 | 2004 | 2003 |
| --- | --- | --- | --- | --- | --- | --- |
| SAIFI for total number of interruptions | Overall | 1.25 | 1.39 (Target: 1.39) | 1.91 | 1.38 | 1.65 | 1.27 |
| SAIFI for total number of interruptions within each interruption class (= a/b) | Class A | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| | Class B | 0.35 | 0.35 | 0.39 | 0.35 | 0.18 | 0.45 |
| | Class C | 0.90 | 0.90 | 0.92 | 1.03 | 1.47 | 1.12 |
| | Class D | - | - | 0.70 | 0.00 | 0.00 | 0.00 |
| | Class E = I | - | - | 0.00 | 0.00 | 0.00 | 0.00 |

  • a = sum of electricity consumers affected by all interruptions

| | Class A | 0 | 0 | 0 | 0 | 0 |
| | Class B | 4,234 | 4,234 | 3,470 | 4,179 | 2,084 | 1,687 |
| | Class C | 10,887 | 10,887 | 11,394 | 12,322 | 6,932 | 12,803 |
| | Class D | 0 | 0 | 8,363 | 0 | 0 |
| | Class E = I | 0 | 0 | 0 | 0 | 0 |

  • b = Total Consumers

| | | 12,097 | 12,097 | 12,006 | 11,975 | 11,493 | 11,400 |

Connection Average Interruption Duration Index (CAIDI)

| | Class | 2006/11 | 2007 (Target) | 2006 | 2005 | 2004 | 2003 |
| --- | --- | --- | --- | --- | --- | --- |
| CAIDI for total number of interruptions | Overall | - | 76 | 53.58 | 76.11 | 77.59 | 72.03 |
| CAIDI for total number of interruptions within each interruption class | Class A | - | - | 0.00 | 0.00 | 0.00 | 0.00 |
| | Class B | 143 | 143 | 172.49 | 175.144 | 202.13 | 198.83 |
| | Class C | 48 | 50 | 50.87 | 42.40 | 102.93 | 55.26 |
| | Class D | - | - | 8.00 | 0.00 | 0.00 | 0.00 |
| | Classes E = I | - | - | 0.00 | 0.00 | 0.00 | 0.00 |



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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2006, No 133


Gazette.govt.nz — PDF NZ Gazette 2006, No 133




✨ LLM interpretation of page content

🏭 Network Waitaki Limited Lines Business Statistics (continued from previous page)

🏭 Trade, Customs & Industry
Network Statistics, Electricity, Energy, Network Waitaki Limited, Interruptions, Faults, SAIDI, SAIFI, CAIDI