Financial Statements




2180 NEW ZEALAND GAZETTE No. 91

Wairarapa Electricity Limited and Subsidiary Companies

Regulation 15 continued...

1997 1996 1995
(d) Transformer Capacity (kVA) 167978 160525 158198
(e) Maximum Demand (kW) 41,818 41,094 40,616
(f) Total Electricity supplied by system (kWh) 219.6 x 10³ 215.0 x 10³ 214.2 x 10³
(g) Total Electricity conveyed by System for other persons (kWh) 4.3 x 10³ 4.2 x 10³ 1.5 x 10³
(e) Total Customers (average for year) 20,454 20,650 20,833
  1. Regulation 16

(f) Total number of interruptions and breakdowns by interruption class

Class Type of interruption 1997 1996 1995
A Planned - Trans Power 0 0 0
B Planned - Wairarapa Electricity Limited 143 174 201
C Unplanned - Wairarapa Electricity Limited 210 214 427
D Unplanned - Transpower 1 6 3
E Unplanned - ECNZ 0 0 0
F Unplanned - Other 0 0 0
G Any other interruption 0 0 0
Total 354 394 631

(ii) Number of faults per 100 circuit kms

Line Voltage Total Underground Overhead
1997 1996 1995 1997 1996 1995
100kV 0.0 0.0 0.0 0.0 0.0 0.0
66kV 0.0 0.0 0.0 0.0 0.0 0.0
33kV 1.1 1.7 5.8 0.0 0.0 0.0
11kV 13.3 13.6 27.1 2.8 5.7 2.9
6.6kV 0.0 0.0 0.0 0.0 0.0 0.0
3.3kV 58.8 29.4 58.8 0.0 0.0 0.0
Total 12.2 12.6 24.7 2.7 5.5 2.8

(iii) Breakdown of statistics by interruption class

Class SAIDI SAIFI CAIDI
1997 1996 1995
A 0.0 0.0 0.0
B 53.5 77.7 105.5
C 133.9 107.3 160.3
D 1.6 8.9 11.2
E 0.0 0.0 0.0
F 0.0 0.0 0.0
G 0.0 0.0 0.0
Total 189.1 193.9 277.0

Key:

A Planned - Trans Power
B Planned - Wairarapa Electricity Limited
C Unplanned - Wairarapa Electricity Limited
D Unplanned - Transpower
E Unplanned - ECNZ
F Unplanned - Other
G Any other interruption



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Financial Statements, Wairarapa Electricity Limited, Subsidiary Companies, Performance Measures, Statistics