1922

NEW ZEALAND GAZETTE

No. 74

CENTRALINES LIMITED AMENDMENTS TO NEW ZEALAND GAZETTE INFORMATION
DISCLOSED ON 6 SEPTEMBER 2002

21.1 ENERGY DELIVERY EFFICIENCY PERFORMANCE MEASURES

21 a Load Factor 2002 2001 2000 1999 1998
30.41% 62.56% 62.53% 60.10% 58.55%
21 b Loss Ratio 7.39% 8.02% 8.50% 7.80% 9.70%
21 c Capacity Utilisation 68.36% 29.00% 29.00% 27.00% 28.00%

21.2 STATISTICS

21 a System Length (km)
33kV 91.0 91.0 91.0 91.0 91.0
11kV 1433.0 1435.0 1366.0 1364.0 1362.0
400V 91.0 86.0 86.0 85.6 84.8
Total 1615.0 1612.0 1543.0 1540.6 1537.8

21 b Total Length of Overhead System (km)
33kV 80.0 80.0 90.0 80.0 90.0
11kV 1425.0 1428.0 1359.0 1357.0 1355.0
400V 66.2 67.8 66.6 66.6 66.8
Total 1583.2 1585.8 1515.6 1513.6 1511.8

21 c Total Length of Underground System (km)
33kV 0.5 0.5 0.5 0.5 0.5
11kV 8.4 7.3 7.3 7.2 7.2
400 V 22.7 20.6 19.5 19.1 18.2
Total 31.6 28.4 27.3 26.8 25.9

21 d Transformer Capacity (KVA) 71,482 69,937 64,635 63,993 63,178

21 e Maximum Demand (KW) 41,724* 20,266 17,000 17,000 17,420

• This maximum demand was the result of loss of metering pulses during the commissioning phase of the second transformer bank at Transpower's GXP. A waiver was in place during this phase as a result.

21 f Total Electricity Supplied into Systems (before losses) Kwhr 111,117,752 111,165,473 93,369,416 89,547,354 89,343,000

21 g Electricity on behalf of other entities (after losses, Kwhr)
Retailer 1 81,571,915 92,163,213 82,849,994 70,256,509 0
Retailer 2 12,009,511 2,695,910 1,696,994 12,146,508 0
Retailer 3 1,532,778 575,652 608,542 159,694 0
Retailer 4 7,038,256 6,803,809 182,951 0 0
Retailer 5 113,799 108,420 95,264 0 0
Retailer 6 687,278 0 0 0 0
Total 102,953,537 102,250,004 85,433,745 82,562,710 0

21 h Total Customers (average for year) 7,431 7,432 7,454 7,432 7,769

22 Total Number of faults per 100km of lines
33kV 23.0 4.4 0.0 0.0 0.0
11kV 18.6 18.8 9.9 9.7 8.9
Total 17.0 18.0 9.3 9.1 8.4

  Number of Faults per 100 circuit kilometre overhead
  33kV             22.0     4.4      0.0      0.0      0.0
  11kV             16.7     18.9     9.9      9.7      9.0
  Total            17.0     18.1     9.3      9.1      8.4

  Number of Faults per 100 circuit kilometre underground
  33kV             200.0    0.0      0.0      0.0      0.0
  11kV             0.0      0.0      0.0      0.0      0.0
  Total            11.2     0.0      0.0      0.0      0.0

4a Percentage of Faults greater than or equal to 3 hours 6.6 10.7 2.1 17 na
4b Percentage of Faults greater than or equal to 24 hours 0 0 na na na