New Zealand Gazette – 2005 – No. 21

Page 481

✨ Electricity Network Performance Statistics



19 JANUARY 2005 NEW ZEALAND GAZETTE, No. 21

481

Network Waitaki Limited Lines Business

Reliability and Performance Measures

System Average Interruption Duration Index (SAIDI)

Class 2004/08 (Target) 2004 (Target) 2004 2003 2002 2001 2000
SAIDI for total number of interruptions Overall 77 80 187.0 91.6 78.1 72.2

| SAIDI for total number of interruptions within each interruption class ( = a/b ) |
| Class A | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Class B | 27 | 30 | 36.7 | 29.6 | 34.6 | 16.7 | 1.9 |
| Class C | 50 | 50 | 150.3 | 62.1 | 43.5 | 55.5 | 44.2 |
| Class D | - | - | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Class E | - | - | 0.0 | 0.0 | 0.0 | 0.0 | 0

| a = sum of interruption duration factors for all interruptions within the particular interruption class |
| Class A | - | - | 0 | 0 | 0 | 0 | 0 |
| Class B | 297,000 | 336,000 | 421,371 | 337,116 | 392,644 | 189,510 | 21,820 |
| Class C | 550,000 | 560,000 | 1,727,489 | 707,489 | 493,454 | 631,089 | 504,490 |
| Class D | - | - | 0 | 0 | 0 | 0 | 0 |
| Class E | - | - | 0 | 0 | 0 | 0 | 0 |

| b = Total Consumers | 11,000 | 11,200 | 11,491 | 11,400 | 11,341 | 11,372 | 11,409 |

System Average Interruption Frequency Index (SAIFI)

Class 2004/08 (Target) 2004 (Target) 2004 2003 2002 2001 2000
SAIFI for total number of interruptions Overall 0.95 0.95 1.65 1.27 1.00 1.03

| 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 | 0.00 |
| Class B | 0.12 | 0.12 | 0.18 | 0.15 | 0.20 | 0.12 | 0.01 |
| Class C | 0.83 | 0.83 | 1.47 | 1.12 | 0.80 | 0.90 | 0.85 |
| Class D | - | - | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Class E | - | - | 0.00 | 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 | 1,320 | 1,344 | 2,084 | 1,687 | 2,293 | 1,380 | 169 |
| Class C | 9,130 | 9,296 | 16,932 | 12,803 | 9,019 | 10,279 | 9,663 |
| Class D | - | - | 0 | 0 | 0 | 0 | 0 |
| Class E | - | - | 0 | 0 | 0 | 0 | 0 |

| b = Total Consumers | 11,000 | 11,200 | 11,491 | 11,400 | 11,341 | 11,372 | 11,409 |

Connection Average Interruption Duration Index (CAIDI)

Class 2004/08 (Target) 2004 (Target) 2004 2003 2002 2001 2000
CAIDI for total number of interruptions Overall 81 84 113.00 72.09 78.33 70.38

| CAIDI for total number of interruptions within each interruption class |
| Class A | - | - | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Class B | 225 | 250 | 202.19 | 199.83 | 171.24 | 137.33 | 129.14 |
| Class C | 60 | 60 | 102.03 | 55.26 | 54.71 | 61.40 | 52.21 |
| Class D | - | - | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Classes E-I | - | - | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |

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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2005, No 21


Gazette.govt.nz — PDF NZ Gazette 2005, No 21




✨ LLM interpretation of page content

🏭 Network Waitaki Limited Lines Business Reliability and Performance Measures (continued from previous page)

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