β¨ Energy Delivery Efficiency Performance Measures and Statistics
REQUIREMENT 20 - ENERGY DELIVERY EFFICIENCY PERFORMANCE MEASURES AND STATISTICS
2007
2006
2005
2004
1. Energy Delivery Efficiency Performance Measures
(a) Load Factor
64.6%
68.7%
68.0%
67.6%
(b) Loss Ratio
6.9%
5.4%
6.6%
5.9%
(c) Capacity Utilisation
23.4%
22.0%
22.5%
22.7%
2. Statistics
(a) System Length Breakdown in Kilometres
kms
2007
33kV
291
11kV
2,227
6.6kV
50
LV
695
Total
3,263
(b) Circuit Length of Overhead System in Kilometres
kms
2007
33kV
286
11kV
2,109
6.6kV
50
LV
446
Total
2,890
(c) Circuit Length of Underground System in Kilometres
kms
2007
33kV
5
11kV
118
6.6kV
-
LV
250
Total
372
(d) Transformer Capacity in kVA
2007
2006
2005
2004
270,448
265,000
256,327
241,193
(e) Maximum demand in kW
2007
2006
2005
2004
63,186
58,226
57,590
54,814
(f) Total Electricity Entering the System in kWh (before losses)
2007
2006
2005
2004
357,385,278
330,177,390
343,022,932
325,697,527
(g) Total Electricity Supplied from the System on behalf of each Generator and Retailer in kWh (after losses)
Retailer
2007
2006
2005
2004
Retailer B
214,944,255
219,947,696
214,611,503
206,965,060
Retailer C
74,233,850
61,599,453
55,678,936
58,077,922
Retailer D
2,300,224
1,614,994
1,881,472
1,508,728
Retailer F
5,324,102
12,096,660
16,249,036
8,414,488
Retailer G
35,882,512
35,981,466
31,858,823
31,455,535
Total
332,684,943
331,240,269
320,279,770
306,421,733
These energy volumes have been provided by energy retailers; Marlborough Lines cannot assure readers as to the accuracy of this information.
(h) Total Consumers at year end
2007
2006
2005
2004
23,135
22,932
22,547
22,251
Average Consumers for year
2007
2006
2005
2004
23,034
22,740
22,399
21,834
Total Consumers includes a small number of installations where consumption is estimated on the basis of known load rather than recorded by metering equipment.