New Zealand Gazette – 2005 – No. 20

Page 460

✨ Energy Performance Statistics



Alpine Energy Limited Lines Business

Reliability and Performance Measures

System Average Interruption Duration Index (SAIDI) - 31 March 2004

Class 2004/08 (Target) 2004 (Target) 2004 2003 2002 2001
SAIDI for total number of interruptions
Overall 77 82 115 204 81 113
Class A 7 7 0 22 0 0
SAIDI for total number of interruptions
within each interruption class (= a/b)
Class B 12 12 12 20 19 2
Class C 45 49 103 162 50 68
Class D 13 14 0 0 12 38
Class E - I 0 0 0 0 0 0

| |
| a = sum of interruption duration factors |
| for all interruptions within the |
| particular interruption class |
| Class A | 200,000 | 200,000 | 0 | 609,600| 9,805| 0 |
| Class B | 350,000 | 350,000 | 350,995| 570,856| 525,896| 210,305|
| Class C | 1,300,000 | 1,400,000 | 2,935,049| 4,580,897| 1,411,304| 1,881,474|
| Class D | 375,000 | 400,000 | 0 | 0 | 339,660| 1,060,175|
| Class E - I | 0 | 0 | 0 | 0 | 0 | 0 |

| b = Total Consumers | 28,600 | 28,500 | 28,409| 28,248| 28,376| 27,806|

System Average Interruption Frequency Index (SAIFI) - 31 March 2004

Class 2004/08 (Target) 2004 (Target) 2004 2003 2002 2001
SAIFI for total number of interruptions
Overall 1.2 1.3 1.6 1.1 1.2 1.7
Class A 0.1 0.1 0.0 0.1 0.1 0.0
SAIFI for total number of interruptions
within each interruption class (= a/b)
Class B 0.1 0.1 0.1 0.1 0.2 0.1
Class C 0.9 1.0 1.5 0.9 0.8 1.3
Class D 0.1 0.1 0.0 0.0 0.0 0.3
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 A | 4,000 | 4,000 | 0 | 1,977| 3,922| 0 |
| Class B | 3,000 | 3,500 | 3,930| 3,390| 5,700| 1,859|
| Class C | 26,500 | 27,500 | 41,406| 25,988| 23,455| 36,765|
| Class D | 1,750 | 2,000 | 0 | 0 | 629 | 9,587|
| Class E - I | 0 | 0 | 0 | 0 | 0 | 0 |

| b = Total Consumers | 28,800 | 28,500 | 28,409| 28,248| 28,376| 27,806|

Connection Average Interruption Duration Index (CAIDI) - 31 March 2004

Class 2004/08 (Target) 2004 (Target) 2004 2003 2002 2001
CAIDI for total number of interruptions
Overall 63 64 72 184 68 65
Class A 50 50 0 308 3 0
CAIDI for total number of interruptions
within each interruption class (= a/b)
Class B 117 100 89 168 92 113
Class C 49 51 71 176 60 51
Class D 214 200 0 0 540 111
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 20


Gazette.govt.nz — PDF NZ Gazette 2005, No 20




✨ LLM interpretation of page content

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

🏭 Trade, Customs & Industry
Energy, Reliability, Performance, SAIDI, SAIFI, CAIDI, Interruptions, Statistics