New Zealand Gazette – 2008 – No. 4

Page 91

✨ Network Waitaki Limited Network Statistics



11 JANUARY 2008

NEW ZEALAND GAZETTE, No. 4

91

Network Waitaki Limited Lines Business

Reliability and Performance Measures

System Average Interruption Duration Index (SAIDI)

| | Class | 2008/12
(Target) | 2008
(Target) | 2007 | 2006 | 2005 | 2004 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| SAIDI for total number of interruptions | Overall | 100 | 100 | 505.55 | 102.31 | 104.85 | 187.0 |
| SAIDI for total number of interruptions within each interruption class (= a/b) | Class A | 50 | 50 | 0.00 | 0.00 | 0.0 | 0.0 |
| | Class B | 50 | 50 | 41.39 | 49.79 | 61.14 | 33.7 |
| | Class C | 50 | 50 | 291.41 | 46.95 | 43.71 | 150.30 |
| | Class D | | | 172.75 | 5.57 | 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 | 0 | 0 | 0 |
| | Class B | 597,200 | 597,200 | 495,353 | 597,824 | 732,104 | 421,371 |
| | Class C | 597,200 | 597,200 | 3,481,389 | 563,694 | 523,463 | 1,727,489 |
| | Class D | | | 2,063,195 | 66,920 | 0 | 0 |
| | Class E - I | | | 0 | 0 | 0 | 0 |

| b = Total Consumers | | 11,944.00 | 11,944.00 | 11,944.00 | 12,006 | 11,975 | 11,491 |

System Average Interruption Frequency Index (SAIFI)

| | Class | 2008/12
(Target) | 2008
(Target) | 2007 | 2006 | 2005 | 2004 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| SAIFI for total number of interruptions | Overall | 1.39 | 1.39 | 3.32 | 1.91 | 1.38 | 1.65 |
| SAIFI for total number of interruptions within each interruption class (= a/b) | Class A | | | 0.00 | 0.00 | 0.00 | 0.00 |
| | Class B | 0.35 | 0.35 | 0.19 | 0.29 | 0.35 | 0.18 |
| | Class C | 1.04 | 1.04 | 1.26 | 0.92 | 1.03 | 1.47 |
| | Class D | | | 1.87 | 0.70 | 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 |
| | Class B | 4,180 | 4,180 | 2,293 | 3,470 | 4,179 | 2,084 |
| | Class C | 12,422 | 12,422 | 15,049 | 11,094 | 12,322 | 16,932 |
| | Class D | | | 22,310 | 8,368 | 0 | 0 |
| | Class E - I | | | 0 | 0 | 0 | 0 |

| b = Total Consumers | | 11,944.00 | 11,944.00 | 11,943.5 | 12,006 | 11,975 | 11,491 |

Connection Average Interruption Duration Index (CAIDI)

Class 2008/12 2008 2007 2006 2005 2004
CAIDI for total number of interruptions Overall 71.94 71.94 142.39 53.58 76.11 113.00
CAIDI for total number of interruptions within each interruption class Class A 0.00 0.00 0.00 0.00
Class B 142.86 142.86 215.56 172.48 175.14 202.19
Class C 48.08 48.08 231.28 50.80 42.50 102.03
Class D 92.48 8.00 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 2008, No 4


Gazette.govt.nz — PDF NZ Gazette 2008, No 4




✨ LLM interpretation of page content

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

🏭 Trade, Customs & Industry
Network Statistics, Electricity, Reliability, Performance Measures, Interruptions, Faults, Network Waitaki Limited