PREPARED IN ACCORDANCE WITH THE ELECTRICITY (INFORMATION DISCLOSURE) REQUIREMENTS 2004
1 Financial Performance Measures
Note The Electricity conveyed through the system on behalf of retailers includes an estimate of usage due to lack of reliable data from through meters; the statistics including loss factors relating to this information should be read with caution.
2007
2006
2005
2004
2003
(a) Return on Funds
14.68%
1.6%
14.8%
16.6%
20.7%
(b) Return on Equity
10.33%
11.70%
10.0%
11.7%
13.0%
(c) Return on Investment
9.80%
10.60%
9.0%
5.0%
12.8%
2 Efficiency Performance Measures
2007
2006
2005
2004
2003
(a) Direct Line Costs per Kilometre
$3,375
$3,189
$2,639
$2,536
$2,864
(b) Indirect Line costs per Consumer
$107
$99
$89
$92
$84
1 Energy Delivery Efficiency Performance Measures
2007
2006
2005
2004
2003
(a) Load Factor
56.60%
56.3%
58.5%
56.1%
57.7%
(b) Loss Ratio
4.46%
5.08%
5.0%
5.8%
5.8%
(c) Capacity Utilisation
36.50%
36.3%
37.2%
36.8%
37.6%
2 Statistics
2007
2006
2005
2004
2003
(a) System Length Break Down in Kilometres
33kV
11
11
11
11
17
11kV
79
79
78
78
48
LV
155
154
153
151
147
Total
245
244
242
240
242
(b) Circuit Length of Overhead System in Kilometres
33kV
1
1
1
1
7
11kV
8
8
8
8
9
LV
26
26
27
28
25
Total
35
35
36
37
41
(c) Circuit Length of Underground System in Kilometres
33kV
10
10
10
10
10
11kV
71
71
70
69
69
LV
129
128
126
123
122
Total
210
209
206
202
201
(d) Transformer Capacity in kVA
86,870
85,485
80,920
81,095
79,100
(e) Maximum demand in kW
31,669
31,066
30,120
29,800
29,767
(f) Total Electricity supplied from the System in kWh
156,973,463
153,215,839
154,295,704
146,420,659
150,532,170
(g) Total Electricity Conveyed through the System on behalf of each generator and retailer in kWh
Retailer A
85,573,752
91,315,743
98,252,944
96,433,829
110,638,068
Retailer B
33,397,547
28,753,864
23,913,677
21,734,016
20,725,835
Retailer C
27,615,155
22,058,939
20,458,452
15,066,831
8,381,913
Retailer D
2,336,745
2,712,692
3,389,660
1,961,175
1,969,082
Retailer F
1,055,953
592,717
623,124
474,878
1,219,138
(h) Total Consumers
8,960
8,915
8,876
8,735
8,614
Reliability Performance Measures
1 Number of interruptions by class
Class Description
2007
2006
2005
2004
2003
A Transpower Planned
-
22
-
25
22
B Nelson Electricity Planned
22
7
13
6
-
C Nelson Electricity Unplanned
8
4
13
7
13
D Transpower Unplanned
2
2
-
-
-
E ECNZ Unplanned
-
-
-
-
-
F Other Generation
-
-
-
-
-
G Unplanned Other Line Owner
-
-
-
-
-
H Planned Other Line Owner
-
-
-
-
-
I Other
-
-
-
-
-
Total
32
33
38
17
35
2/3 Interruption targets for the average of the next five years
Class Description
2009-2012
2008
B Nelson Electricity Planned
25
25
C Nelson Electricity Unplanned
8
8
4 Percentage of Class C interruptions not restored within:
NZ Gazette 2008, No 13
