New Zealand Gazette – 2005 – No. 9

Page 207

✨ Electricity Reliability Performance Measures



DISCLOSURE OF RELIABILITY PERFORMANCE MEASURES UNDER THE ELECTRICITY INFORMATION DISCLOSURE REQUIREMENTS 2004

17 JANUARY 2005

NEW ZEALAND GAZETTE, No. 9

207

1. Total Number of Interruptions

2004 2003 2002 2001
Class A - Planned - by Transpower 1 0 1 0
Class B - Planned - by Northpower 149 160 225 209
Class C - Unplanned - by Northpower 256 361 271 312
Class D - Unplanned - by Transpower 0 2 0 2
Total 406 523 497 523

2. Interruption Targets for 2004/2005

2004 2003 2002 2001
Class B - Planned - by Northpower 180 200 210 220
Class C - Unplanned - by Northpower 240 240 240 250

3. Average Interruption Targets for Next 5 Yrs

2004/05-2008/09
Class B - Planned - by Northpower 160
2003/04-2007/08
170
2002/03-2006/07
180
2001/02-2005/06
200
Class C - Unplanned - by Northpower 170
190
190
200

4. Proportion of Class C Interruptions not restored within

| 3 Hrs | 15.5% | 15.7% | 14.4% | 15.7% |
| 24 Hrs | 0% | 0% | 0% | 0% |

5. (a) Total No. of Faults per 100 circuit kilometres of prescribed voltage electric line

2004 2003 2002 2001
11 kV 7.79 10.74 8.54 9.51
33 kV 7.76 9.57 2.17 6.73
Total 7.79 10.66 8.11 9.34

(b) Target for 2004/2005 Year

2004/05
11 kV 7.30
33 kV 2.00
Total 7.00

(c) Average Target for 2004/2005 to 2008/2009 years

2004/05-2008/09
11 kV 5
33 kV 2
Total 5

6. Total No. of Faults per 100 circuit kilometres of underground prescribed voltage electric line

2004 2003 2002 2001
11 kV 1.92 1.03 2.30 2.56
33 kV 0.00 0.00 0.00 0.00
Total 1.67 0.88 1.92 2.20

7. Total No. of Faults per 100 circuit kilometres of overhead prescribed voltage electric line

2004 2003 2002 2001
11 kV 7.76 11.04 8.72 9.69
33 kV 7.79 10.33 2.35 7.18
Total 7.79 11.00 8.31 9.54

8. The SAIDI for the total No. of Interruptions

2004
145.32
2003
181.83
2002
219.86
2001
182.52

9. SAIDI Targets for 2004/05

Class 2004/05
Class B - Planned - by Line Owners 30
Class C - Unplanned - by Line Owners 95

10. Average SAIDI Target for 2004/5 to 2008/9 Yrs

Class 2004/05-2008/09
Class B - Planned - by Line Owners 30
Class C - Unplanned - by Line Owners 85


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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2005, No 9


Gazette.govt.nz — PDF NZ Gazette 2005, No 9




✨ LLM interpretation of page content

🏭 Disclosure of Reliability Performance Measures under Electricity Information Disclosure Requirements 2004 (continued from previous page)

🏭 Trade, Customs & Industry
17 January 2005
Electricity, Reliability, Performance Measures, Interruptions, Faults, SAIDI, Northpower, Transpower