New Zealand Gazette – 1998 – No. 141

Page 3438

✨ Financial Performance and Position of Wairoa Power Limited

Wairoa Power Limited - Lines Business

NOTES TO AND FORMING PART OF THE FINANCIAL STATEMENTS
FOR THE YEAR ENDED 31 MARCH 1998 continued

RELIABILITY PERFORMANCE MEASURES (continued)

Interruption Class		1998*	1998	1997	1995
A Planned Interruption by Transpower	Number	5	5	2	2
	SAIDI	31.5	31.5	26.9	56
	SAIFI	0.32	0.32	0.24	0.50
	CAIDI	99.9	99.9	112.0	115

| B Planned Interruption by Other Line Owner | Number | 47 | 47 | 43 | 25 | 34 |
| | SAIDI | 245.7 | 245.7 | 98.6 | 166 | 201 |
| | SAIFI | 2.09 | 2.09 | 0.93 | 1.04 | 1.20 |
| | CAIDI | 117.1 | 117.1 | 106.0 | 160 | 167 |

| C Unplanned Interruption by Other Line Owner | Number | 74 | 84 | 178 | 59 | 88 |
| | SAIDI | 277.3 | 989.7 | 748.0 | 499 | 1,081 |
| | SAIFI | 5.50 | 7.31 | 7.09 | 4.40 | 2.31 |
| | CAIDI | 50.4 | 135.4 | 105.5 | 115 | 469 |

| D Unplanned Interruption by Transpower | Number | 5 | 5 | 0 | 2 | 1 |
| | SAIDI | 157.4 | 157.4 | 0 | 57 | 0 |
| | SAIFI | 2.59 | 2.59 | 0 | 2.20 | 0.05 |
| | CAIDI | 60.8 | 60.8 | 0 | 1.00 | 1.00 |

| E Unplanned Interruption by ECNZ | Number | 0 | 0 | 0 | 1 | 0 |
| | SAIDI | 0 | 0 | 0 | 7 | 0 |
| | SAIFI | 0 | 0 | 0 | 1.00 | 0 |
| | CAIDI | 0 | 0 | 0 | 7 | 0 |

| F Unplanned Interruption by any other generator | Number | 0 | 0 | 0 | 0 | 0 |
| | SAIDI | 0 | 0 | 0 | 0 | 0 |
| | SAIFI | 0 | 0 | 0 | 0 | 0 |
| | CAIDI | 0 | 0 | 0 | 0 | 0 |

| G Unplanned Interruption not resulting from above | Number | 0 | 0 | 0 | 0 | 0 |
| | SAIDI | 0 | 0 | 0 | 0 | 0 |
| | SAIFI | 0 | 0 | 0 | 0 | 0 |
| | CAIDI | 0 | 0 | 0 | 0 | 0 |

| Total | Number | 131 | 141 | 223 | 87 | 125 |
| | SAIDI | 712 | 1,424 | 873 | 729 | 1,340 |
| | SAIFI | 10.50 | 12.31 | 8.26 | 8.60 | 4.06 |
| | CAIDI | 67.8 | 115.7 | 105.7 | 85 | 330 |

Wairoa Power Limited - Lines Business

NOTES TO AND FORMING PART OF THE FINANCIAL STATEMENTS
FOR THE YEAR ENDED 31 MARCH 1998 continued

SAIDI System Average Interruption Duration Index
(minutes per customer per year)

SAIFI System Average Interruption Frequency Index
(interruptions per customer per year)

CAIDI (minutes per customer interrupted)

Excludes data for Queens Birthday Storm

NEW ZEALAND GAZETTE

No. 141

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VUW Te Waharoa — NZ Gazette 1998, No 141

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✨ LLM interpretation of page content

🏭 Financial Performance and Position of Wairoa Power Limited (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsFinancial Statements, Performance, Equity, Assets, Liabilities, Wairoa Power Limited, Statistics, Reliability Measures

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