New Zealand Gazette – 2005 – No. 116

Page 2799

✨ Electricity Reliability Performance Measures



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

2005 2004 2003 2002
1. Total Number of Interruptions
Class A - Planned - by Transpower 1 1 0 1
Class B - Planned - by Northpower 251 149 160 225
Class C - Unplanned - by Northpower 225 256 361 271
Class D - Unplanned - by Transpower 1 0 2 0
Total 478 406 523 497

2. Interruption Targets for 2005/2006

2005/2006
Class B - Planned - by Northpower 180
Class C - Unplanned - by Northpower 220
2004 2003 2002
Class B - Planned - by Northpower 180 200 210
Class C - Unplanned - by Northpower 240 240 240

3. Average Interruption Targets for Next 5 Yrs

2005/2010
Class B - Planned - by Northpower 160
Class C - Unplanned - by Northpower 170
2004 2003 2002
Class B - Planned - by Northpower 160 170 180
Class C - Unplanned - by Northpower 170 190 190

4. Proportion of Class C Interruptions not restored within

2005
3 Hrs 16.4%
24 Hrs 0%
2004 2003 2002
3 Hrs 15.5% 15.7% 14.4%
24 Hrs 0% 0% 0%

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

Voltage Level 2005
11 kV 6.72
33 kV 5.11
Total 6.61
Voltage Level 2004 2003 2002
11 kV 7.79 10.74 8.54
33 kV - 9.57 2.17
Total 7.79 10.66 8.11

(b) Target for 2005/2006 Year

Voltage Level 2005/2006
11 kV 7.30
33 kV 2.00
Total 7.00
Voltage Level 2004 2003 2002
11 kV 7.30 7.50 7.50
33 kV 2.00 2.00 2.00
Total 7.00 7.12 7.12

(c) Average Target for 2005/2006 to 2009/2010 years

Voltage Level 2005/2010
11 kV 5
33 kV 2
Total 5
Voltage Level 2004 2003 2002
11 kV 5 5 5
33 kV 2 2 2
Total 5 5 5

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

Voltage Level 2005
11 kV 1.68
33 kV 0.00
Total 1.48
Voltage Level 2004 2003 2002
11 kV 1.92 1.03 2.30
33 kV - 0.00 0.00
Total 1.67 0.88 1.92

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

Voltage Level 2005
11 kV 6.91
33 kV 5.48
Total 6.82
Voltage Level 2004 2003 2002
11 kV 7.76 11.04 8.72
33 kV - 10.33 2.35
Total 7.79 11.00 8.31

8. The SAIDI for the total No. of Interruptions

2005
113.24
2004 2003 2002
145.32 181.83 219.86

9. SAIDI Targets for 2005/06

Class 2005/2006
Class B - Planned - by Line Owners 30
Class C - Unplanned - by Line Owners 90
Class 2004 2003 2002
Class B - Planned - by Line Owners 30 30 30
Class C - Unplanned - by Line Owners 95 100 100

10. Average SAIDI Target for 2005/6 to 2009/10 Yrs

Class 2005/2010
Class B - Planned - by Line Owners 30
Class C - Unplanned - by Line Owners 85
Class 2004 2003 2002
Class B - Planned - by Line Owners 30 30 30
Class C - Unplanned - by Line Owners 85 85 85


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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2005, No 116


Gazette.govt.nz — PDF NZ Gazette 2005, No 116




✨ LLM interpretation of page content

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

🏭 Trade, Customs & Industry
Electricity, Reliability, Interruptions, Faults, SAIDI, Performance Measures