New Zealand Gazette – 2003 – No. 121

Page 3298

✨ Electricity Reliability Performance Measures



DISCLOSURE OF RELIABILITY PERFORMANCE MEASURES UNDER REGULATION 22 OF THE ELECTRICITY (INFORMATION DISCLOSURE) REGULATIONS 1999

2003 2002 2001 2000
1. Total Number of Interruptions
Class A - Planned - by Transpower 0 1 0 1
Class B - Planned - by Line Owners 160 225 209 271
Class C - Unplanned - by Line Owners 361 271 312 267
Class D - Unplanned - by Transpower 2 0 2 3
Class E - Unplanned - by ECNZ 0 0 0 0
Class F - Unplanned - by other Generation 0 0 0 0
Class G - Any Other Loss of Supply 0 0 0 0
Total 523 497 523 542

2. Interruption Targets for 2003/2004
Class B - Planned - by Line Owners 200
Class C - Unplanned - by Line Owners 240
2003/2004 2002 2001
Class B 200 210 220
Class C 240 240 250

3. Average Interruption Targets for Next 5 Yrs

2003/04-2007/08
Class B - Planned - by Line Owners 170
Class C - Unplanned - by Line Owners 190
2003/04 2002/03
Class B 170 180
Class C 190 190
2001/02
---------------- ---------
Class B 200
Class C 200

4. Proportion of Class C Interruptions not restored within

2003 2002 2001 2000
3 Hrs 15.7% 14.4% 15.7% 13.5%
24 Hrs 0% 0% 0% 0%

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

2003 2002 2001 2000
11 kV 10.74 8.54 9.51 7.84
33 kV 9.57 2.17 6.73 2.46
Total 10.66 8.11 9.34 7.54

(b) Target for 2003/2004 Year

Target
11 kV 7.50
33 kV 2.00
Total 7.12
2003/04 2002/03
11 kV 7.50 7.50
33 kV 2.00 2.00
Total 7.12 7.32
2001/02
11 kV 7.70
33 kV 1.60
Total 7.32

(c) Average Target for 2003/2004 to 2007/2008 years

Average Target
11 kV 5
33 kV 2
Total 5

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

2003 2002 2001 2000
11 kV 1.03 2.30 2.56 2.70
33 kV 0.00 0.00 0.00 0.00
Total 0.88 1.92 2.20 2.30

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

2003 2002 2001 2000
11 kV 11.04 8.72 9.69 7.96
33 kV 10.33 2.35 7.18 2.63
Total 11.00 8.31 9.54 7.67

8. The SAIDI for the total No. of Interruptions

2003
181.83
2002 2001 2000
219.86 182.52 131.21

9. SAIDI Targets for 2003/04

2003/04
Class B - Planned - by Line Owners 30
Class C - Unplanned - by Line Owners 100
2002/03
Class B 30
Class C 100
2001/02
Class B 35
Class C 107

10. Average SAIDI Target for 2003/4 to 2007/8 Yrs

Average Target
Class B - Planned - by Line Owners 30
Class C - Unplanned - by Line Owners 85
2003/04-2007/08
Class B 30
Class C 85
2002/03-2006/07
Class B 30
Class C 85
2001/02
Class B 30
Class C 90


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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2003, No 121


Gazette.govt.nz — PDF NZ Gazette 2003, No 121




✨ LLM interpretation of page content

🌾 Disclosure of Reliability Performance Measures under Electricity Regulations (continued from previous page)

🌾 Primary Industries & Resources
Electricity, Reliability, Performance Measures, Interruptions, Faults, Targets