✨ Reliability and Performance Measures




Alpine Energy Limited Lines Business

Reliability and Performance Measures

System Average Interruption Duration Index (SAIDI) - 31 March 2005

Class 2006/09 (Target) 2006 (Target) 2005 2004 2003 2002
SAIDI for total number of interruptions
Overall 87 90 79 115 204 81
Class A 9 9 9 0 22 0
Class B 11 11 12 12 20 19
Class C 57 57 57 103 162 50
Class D 10 12 2 0 0 12
Class E - I 0 0 0 0 0 0

a = sum of interruption duration factors for all interruptions within the particular interruption class

Class
Class A 252,560 252,560 262,560 0 609,600 9,805
Class B 307,024 307,024 339,577 350,995 570,856 525,896
Class C 1,635,872 1,635,872 1,630,077 2,935,049 4,580,897 1,411,304
Class D 300,000 350,000 51,508 0 0 339,660
Class E - I 0 0 0 0 0 0

b = Total Consumers

| | 28,800 | 28,500 | 28,697 | 28,409 | 28,248 | 28,376 |

System Average Interruption Frequency Index (SAIFI) - 31 March 2005

Class 2006/09 (Target) 2006 (Target) 2005 2004 2003 2002
SAIFI for total number of interruptions
Overall 1.1 1.1 1.0 1.6 1.1 1.2
Class A 0.0 0.0 0.0 0.0 0.1 0.1
Class B 0.1 0.1 0.1 0.1 0.1 0.2
Class C 0.9 0.9 0.9 1.5 0.9 0.8
Class D 0.1 0.1 0.0 0.0 0.0 0.0
Class E - I 0.0 0.0 0.0 0.0 0.0 0.0

a = sum of electricity consumers affected by all interruptions

Class
Class A 700 700 450 0 1,977 3,922
Class B 2,250 2,250 2,640 3,930 3,390 5,700
Class C 27,000 27,000 24,700 41,406 25,988 23,455
Class D 1,800 1,800 907 0 0 629
Class E - I 0 0 0 0 0 0

b = Total Consumers

| | 28,800 | 28,500 | 28,697 | 28,409 | 28,248 | 28,376 |

Connection Average Interruption Duration Index (CAIDI) - 31 March 2005

Class 2006/09 (Target) 2006 (Target) 2005 2004 2003 2002
CAIDI for total number of interruptions
Overall 79 80 80 72 184 68
Class A 375 375 583 0 308 3
Class B 136 136 129 89 168 92
Class C 61 61 66 71 176 60
Class D 167 194 57 0 0 540
Class E - I 0 0 0 0 0 0


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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2005, No 144


Gazette.govt.nz PDF NZ Gazette 2005, No 144





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🏭 Alpine Energy Limited Lines Business Reliability and Performance Measures (continued from previous page)

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Reliability, Performance Measures, Interruptions, Faults, Electricity Supply, Alpine Energy, Transpower