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 retailers. The statistics including loss factors relating to this information should be read with caution.
2006
2005
2004
2003
2002
(a) Return on Funds
16.0%
14.8%
16.6%
20.7%
24.1%
(b) Return on Equity
11.7%
10.0%
11.7%
13.0%
14.7%
(c) Return on Investment
10.6%
9.3%
9.7%
12.8%
14.0%
2. Efficiency Performance Measures
2006
2005
2004
2003
2002
(a) Direct Line Costs per Kilometre
$3,089
$2,639
$2,536
$2,864
$1,884
(b) Indirect line costs per Consumer
$890
$889
$92
$84
$118
Energy Delivery Efficiency Performance Measures
2006
2005
2004
2003
2002
(a) Load Factor
56.3%
58.5%
56.1%
57.7%
55.0%
(b) Loss Ratio
5.08%
5.5%
5.8%
5.8%
2.3%
(c) Capacity Utilisation
36.3%
37.2%
36.8%
37.6%
39.0%
Statistics
2006
2005
2004
2003
2002
(a) System Length Break Down in Kilometres
33kV
11
11
11
7
17
11kV
79
78
78
78
78
1.kV
154
153
151
147
146
Total
244
242
240
242
241
(b) Circuit Length of Overhead System in Km
33kV
1
1
1
7
8
11kV
8
8
8
9
9
1.kV
76
77
79
25
25
Total
85
86
88
41
42
(c) Circuit Length of Underground System in Km
33kV
10
10
10
10
10
11kV
71
70
70
69
69
1.kV
128
126
123
122
121
Total
209
206
203
201
200
(d) Transformer Capacity in kVA
85485
80920
81005
79100
78199
(e) Maximum demand in kW
31066
30120
29800
29767
30470
(f) Total Electricity supplied from System in kWh
153215839
154295704
146470659
150532170
146924719
(g) Total Electricity conveyed through System on behalf of each generator and retailer in kWh
Retailer A
91315743
98752944
98433829
110038068
116967198
Retailer B
28753864
23913677
21734016
20725835
17346953
Retailer C
22058579
20155452
15066831
8381913
3794044
Retailer D
430812
120331
Retailer J
2712062
3389660
1961175
1969082
2723393
Retailer I
592717
623124
471878
1219138
3049344
(h) Total Consumers
8915
8876
8735
8614
8575
Reliability Performance Measures
1. Number of Interruptions by Class
Class Description
2006
2005
2004
2003
2002
A Transmission Planned
-
-
-
-
-
B Nelson Electricity Planned
27
25
10
22
9
C Nelson Electricity Unplanned
4
13
7
13
7
D Transpower Unplanned
2
-
-
-
-
E ECPNZ Unplanned
-
-
-
-
-
F Other Generation
-
-
-
-
-
G Unplanned Other Line Owner
-
-
-
-
-
H Planned Other Line Owner
-
-
-
-
-
I Other
-
1
-
1
-
Total
33
39
17
35
16
2/3 Interruption targets for the average of the next five years
Class Description
2008-2011
2007
(a) Nelson Electricity Planned
-
25
(b) Nelson Electricity Unplanned
-
8
(c) Nelson Electricity Total
-
33
4. Percentage of Class C interruptions not restored within: