New Zealand Gazette – 1998 – No. 114

Page 2818

✨ Electricity Reliability Performance Measures



2818 NEW ZEALAND GAZETTE
No. 114

(g) Total electricity conveyed through the system Nil 1,631,400kWh 1,477,600kWh Nil
(h) Total customers (average over period) 30,478 29,977 29,860 29,049

DISCLOSURE OF RELIABILITY PERFORMANCE MEASURES PURSUANT TO REGULATION 16 OF THE ELECTRICITY (INFORMATION DISCLOSURE) REGULATIONS 1994

YEAR TO 31 MARCH 1998 1997 1996 1995

  1. Total number of interruptions:
    (a) Planned interruptions by Transpower Nil Nil Nil Nil
    (b) Planned interruptions by Counties Power 217 207 305 312
    (c) Unplanned interruptions originating within Counties Power system 148 258 221 198
    (d) Unplanned interruptions originating with Transpower system Nil Nil 1 1
    (e) Unplanned interruptions originating with E.C.N.Z. Nil Nil Nil Nil
    (f) Unplanned interruptions originating with Generators other than E.C.N.Z. Nil Nil Nil Nil
    (g) Interruptions not included in (a) to (f) Nil Nil Nil Nil

The Nil interruption reported in categories (a), (e), (f) and (g) mean that the SAIDI, SAIFI and CAIDI data reported below are also Nil for each of these five categories of interruption.

  1. Total number of faults per 100 circuit kilometres of prescribed voltage electric line:
    7.85 17.09 13.28 11.93

  2. Total number of faults per 100 circuit kilometres of underground prescribed voltage line and per different nominal line voltages:
    11kV underground 3.95 1.64 8.7 4.55
    22 kV underground Nil Nil Nil Nil
    Total 3.95 1.64 8.7 4.55

  3. Total number of faults per 100 circuit kilometres of overhead prescribed voltage line and per different nominal line voltages:
    11 kV overhead 7.99 15.46 13.69 13.28
    22 kV overhead 7.79 27.27 18.18 22.73
    33 kV overhead 6.51 10.40 9.83 2.31
    Total 7.85 15.48 13.34 12.24

  4. The SAIDI for the total of interruptions (minutes) 238.69 414.00 468.58 464.42

  5. The SAIDI for the total number of interruptions within each interruption class:
    (b) Planned interruptions by Counties Power (minutes) 96.73 78.61 171.46 179.74
    (c) Unplanned interruptions originating within Counties Power system (minutes) 141.96 335.38 295.03 283.40
    (d) Unplanned interruptions originating within Transpower system Nil Nil 2.09 1.28

  6. The SAIFI for the total number of interruptions 4.31 7.40 5.60 5.19

  7. The SAIFI for the total number of interruptions within each interruption class:
    (b) Planned interruptions by Counties Power 0.59 0.51 0.86 1.08
    (c) Unplanned interruptions originating within Counties Power system 3.71 6.89 4.69 4.06
    (d) Unplanned interruptions originating with Transpower system Nil Nil 0.05 0.05

  8. The CAIDI for the total of all interruptions (minutes) 55.38 55.97 83.72 89.50

  9. The CAIDI for the total number of interruptions within each interruption class:
    (b) Planned interruptions by Counties Power (minutes) 163.95 154.57 199.16 166.60
    (c) Unplanned interruptions originating within Counties Power system (minutes) 38.26 48.69 62.9 69.8
    (d) Unplanned interruptions originating within Transpower system (minutes) Nil Nil 45.56 25.0

Number of customers has been calculated as the average of opening and closing figures for the year.

PUBLISHED BY AUTHORITY OF DEPARTMENT OF INTERNAL AFFAIRS
GP LEGISLATION SERVICES. WELLINGTON, NEW ZEALAND—1998
DEPARTMENT OF INTERNAL AFFAIRS
TE TARI TAWHENUA
ISSN 0111-5650 Price $2.30 (inc. G.S.T)
31457—UXA


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✨ LLM interpretation of page content

🏭 Disclosure of Reliability Performance Measures for Counties Power Limited (continued from previous page)

🏭 Trade, Customs & Industry
1 July 1998
Electricity, Reliability Performance, Interruptions, Faults, SAIDI, SAIFI, CAIDI, Counties Power Limited
  • Department of Internal Affairs