New Zealand Gazette – 2004 – No. 172

Page 4319

✨ Energy Reliability Statistics

HORIZON ENERGY DISTRIBUTION LIMITED

Requirement 21 Reliability Performance Measures

For the year ended 31 March 2004

	2004	2003	2002	2001	2000
1) Interruptions
Class A - Transpower planned interruptions	1	2	-	1	-
Class B - Horizon planned interruptions	67	57	54	103	138
Class C - Horizon unplanned interruptions	83	80	51	77	85
Class D - Transpower unplanned interruptions	4	4	6	2	8
Class E - Horizon generation unplanned interruptions	-	-	-	-	1
Class F - Other generation unplanned interruptions	-	-	1	-	-
Class G - Other line owner unplanned interruptions	-	-	-	-	-
Class H - Other line owner planned interruptions	-	-	-	-	-
Class I - Not in A to H	-	-	-	-	-
Total Number of Interruptions	155	143	122	183	233

	2005	2004	2003	2002	2001	2000
2) Interruption Targets (Next Year)
(a) Planned interruptions (Class B)	62	80	80	110	125	150
(b) Unplanned interruptions (Class C)	82	85	75	80	82	120

	2005
3) Average Interruption Targets (Next 5 Years)
(a) Planned interruptions (Class B)	62
(b) Unplanned interruptions (Class C)	82

	2004	2003	2002	2001	2000
4) Proportion of Class C interruptions not restored within
(a) 3 hours	14.46%	15.00%	19.7%	15.6%	12.8%
(b) 24 hours	0.00%	0.00%	0.0%	0.0%	0.0%

	2004	2003	2002	2001	2000
5) Faults per 100 km of prescribed voltage line
(a) Number of faults
110 kV	0.6	-	1.7	1.7	3.4
33 kV	-	0.6	-	0.7	-
11 kV	4.9	4.7	3.5	4.5	5.3
Total Number of Faults	4.6	4.3	3.3	4.2	5.1

	2005	2004	2003	2002	2001	2000
(b) Number of Faults Targeted
110 kV	-	-	1.1	1.1	1.1	0.6
33 kV	-	6.1	-	-	-	-
11 kV	4.9	4.7	4.4	4.8	5.3	8.5
Total Number of Faults Targeted	4.5	4.6	4.1	4.4	4.8	7.5

	2005
(c) Average Number of Faults Targeted (Next 5yrs)
110 kV	-
33 kV	4.9
11 kV	-
Total Average Number of Faults Targeted	4.5

VUW Te Waharoa — NZ Gazette 2004, No 172

Gazette.govt.nz — NZ Gazette 2004, No 172

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✨ LLM interpretation of page content

🏭 Horizon Energy Distribution Limited's Reliability Performance Measures (continued from previous page)

Domain🏭 Trade, Customs & Industry
KeywordsReliability, Performance Measures, Interruptions, Faults, Energy Distribution

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