New Zealand Gazette – 2005 – No. 136

Page 3312

✨ Electricity Performance Metrics



3312

NEW ZEALAND GAZETTE, No. 136

23 AUGUST 2005

Network Waitaki Limited Lines Business

Reliability and Performance Measures

System Average Interruption Duration Index (SAIDI)

Class 2006/10 (Target) 2006 (Target) 2005 2004 2003 2002 2001
SAIDI for total number of interruptions Overall 100 100 104.85 187.0 91.6 78.1

| SAIDI for total number of interruptions within each interruption class (= a/b) | Class A | | | 0.00 | 0.0 | 0.0 | 0.0 | 0.0 |
| | Class B | 50 | 50 | 61.14 | 36.7 | 29.6 | 34.8 | 16.7 |
| | Class C | 50 | 50 | 43.71 | 150.3 | 82.1 | 43.5 | 55.5 |
| | Class D | | | 0.00 | 0.0 | 0.0 | 0.0 | 0.0 |
| | Class E - I | | | 0.00 | 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 | 550,000 | 560,000 | 732,104 | 421,371 | 337,116 | 392,644 | 189,510 |
| | Class C | 550,000 | 560,000 | 523,463 | 1,727,489 | 707,489 | 493,454 | 631,089 |
| | Class D | | | 0 | 0 | 0 | 0 | 0 |
| | Class E - I | | | 0 | 0 | 0 | 0 | 0 |

| b = Total Consumers | | 11,000 | 11,200 | 11,975 | 11,491 | 11,400 | 11,341 | 11,372 |

System Average Interruption Frequency Index (SAIFI)

Class 2006/10 (Target) 2006 (Target) 2005 2004 2003 2002 2001
SAIFI for total number of interruptions Overall 1.39 1.39 1.38 1.65 1.27 1.00

| SAIFI for total number of interruptions within each interruption class (= a/b) | Class A | | | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| | Class B | 0.35 | 0.35 | 0.35 | 0.18 | 0.15 | 0.20 | 0.12 |
| | Class C | 1.04 | 1.04 | 1.03 | 1.47 | 1.12 | 0.80 | 0.90 |
| | Class D | | | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| | Class E - I | | | 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 | 4,207 | 4,207 | 4,179 | 2,084 | 1,687 | 2,293 | 1,380 |
| | Class C | 12,501 | 12,501 | 12,322 | 16,932 | 12,803 | 9,019 | 10,279 |
| | Class D | | | 0 | 0 | 0 | 0 | 0 |
| | Class E - I | | | 0 | 0 | 0 | 0 | 0 |

| b = Total Consumers | | 12,020 | 12,020 | 11,975 | 11,491 | 11,400 | 11,341 | 11,372 |

Connection Average Interruption Duration Index (CAIDI)

Class 2006/10 (Target) 2006 (Target) 2005 2004 2003 2002 2001
CAIDI for total number of Interruptions Overall 66 67 76.11 113.00 72.09 78.33

| CAIDI for total number of Interruptions within each interruption class | Class A | | | 0.000 | 0.00 | 0.00 | 0.00 | 0.00 |
| | Class B | 143 | 133 | 175.144 | 202.19 | 199.83 | 171.24 | 137.33 |
| | Class C | 48 | 45 | 42.499 | 102.03 | 55.26 | 54.71 | 61.40 |
| | Class D | | | 0.000 | 0.00 | 0.00 | 0.00 | 0.00 |
| | Classes E-I | | | 0.000 | 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 136


Gazette.govt.nz — PDF NZ Gazette 2005, No 136




✨ LLM interpretation of page content

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

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