PURSUANT TO REQUIREMENT 20 OF THE ELECTRICITY INFORMATION DISCLOSURE REQUIREMENTS 2004, SCHEDULE 1 PART 4
Energy Delivery Efficiency Performance Measures Years Ending 31 March 2001, 2002, 2003 and 2004
2004
2003
2002
2001
Load Factor (Percentage of electrical energy entering the transmission system over maximum demand times hours per year.)
76.0%
79.0%
77.3%
77.5%
Loss Ratio (Transmission losses over energy entering the system)
7.4%
6.2%
6.2%
6.0%
Capacity Utilisation (Maximum demand over total transformer capacity)
39.3%
39.4%
39.4%
39.1%
Statistics
66kV
33kV
22kV
11kV
6.6kV
400V
Total
System Length (km's)
2000/01
74
528
251
2,853
62
392
4,160
2001/02
74
528
252
2,881
60
396
4,191
2002/03
74
531
253
2,897
59
396
4,210
2003/04
74
550
251
2,912
52
516
4,355
66kV
33kV
22kV
11kV
6.6kV
400V
Total
Overhead Lines (km's)
2000/01
74
528
251
2,848
61
377
4,139
2001/02
74
528
252
2,876
58
381
4,169
2002/03
74
530
253
2,896
58
381
4,187
2003/04
74
550
251
2,906
51
511
4,343
66kV
33kV
22kV
11kV
6.6kV
400V
Total
Underground Cables (km's)
2000/01
-
0.3
-
5
1
16
22
2001/02
-
0.3
-
5
1
16
22
2002/03
-
0.3
-
6
1
16
23
2003/04
-
0.3
-
6
1
5
12
TX Capacity
Maximum Demand
Electricity Supplied
Electricity Conveyed
Total Customers
2000/01
127,837
49,946
338,969,936
318,765,114
14,297
2001/02
130,633
51,442
348,372,353
326,638,060
14,434
2002/03
134,890
53,161
368,064,390
345,194,498
14,502
2003/04
140,301
55,134
366,923,353
339,953,778
14,542
Retailer
KWh (2003/04)
KWh (2002/03)
KWh (2001/02)
KWh (2000/01)
Retailer A
-
-
1,381,632
12,590,717
Retailer B
115,660,621
125,737,703
147,813,380
168,558,852
Retailer C
10,650,070
6,598,767
1,781,495
64,062
Retailer D
212,633,760
211,948,253
174,815,243
157,435,972
Retailer E
153,326
162,239
155,136
26,439
Retailer F
856,001
747,536
470,103
293,894
Retailer G
-
-
221,071
-
Total
339,953,778
345,194,498
326,638,060
338,969,936
Energy Delivery Efficiency Performance Measures and Statistics for 2001, 2002 and three months of 2003 to 30 June 2002 are those achieved by the previous owner, Otago Power Limited.