New Zealand Gazette – 1997 – No. 80

Page 1970

✨ Electricity Performance Measures



1970

NEW ZEALAND GAZETTE

No. 80

(f) Total electricity supplied from the system 377,336,000 kWh
(g) Total electricity conveyed through the system 1,831,400 kWh
(h) Total customers 29977 average for period

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

Period 1/4/96 to 31/3/97

  1. Total number of interruptions 465
    (a) Planned interruptions by Transpower Nil
    (b) Planned interruptions by Counties Power 207
    (c) Unplanned interruptions originating within Counties Power system 258
    (d) Unplanned interruptions originating with TransPower system Nil
    (e) Unplanned interruptions originating with E.C.N.Z. Nil
    (f) Unplanned interruptions originating with Generators other than E.C.N.Z. Nil
    (g) Interruptions not included in (a) to (f) Nil

The Nil interruption reported in categories (a), (d), (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 17.09

  2. Total number of faults per 100 circuit kilometres of underground prescribed voltage line and per different nominal line voltages:-
    11 kV underground 1.64
    Total 1.61

  3. Total number of faults per 100 circuit kilometres of overhead prescribed voltage line and per different nominal line voltages:-
    11 kV overhead 15.46
    22 kV overhead 27.27
    33 kV overhead 10.40
    Total 15.48

  4. The SAIDI for the total of interruptions 414 minutes

  5. The SAIDI for the total number of interruptions within each interruption class:-
    (b) Planned interruptions by Counties Power 78.61 minutes
    (c) Unplanned interruptions originating within Counties Power system 335.38 minutes
    (d) Unplanned interruptions originating with Transpower system Nil

  6. The SAIFI for the total number of interruptions 7.40 interruptions

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

  8. The CAIDI for the total of all interruptions 55.97 minutes

  9. The CAIDI for the total number of interruptions within each interruption class:-
    (b) Planned interruptions by Counties Power 154.57 minutes
    (c) Unplanned interruptions originating within Counties Power system 48.69 minutes
    (d) Unplanned interruptions originating within TransPower system Nil

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

COUNTIES POWER LIMITED

DISCLOSURE OF ENERGY EFFICIENCY PERFORMANCE MEASURES AND STATISTICS PURSUANT TO REGULATION 15 OF THE ELECTRICITY (INFORMATION DISCLOSURE) REGULATIONS 1994

Period 1/4/95 to 31/3/96

  1. Energy delivery efficiency performance measures
    (a) Load factor 57.1%
    (b) Loss ratio 8.2%
    (c) Capacity utilisation 37.8%

Statistics

(a) System length, broken down by voltage
33 kV 173 km
22 kV 22 km
11 kV 1477 km
400 V 1262 km
Total 2934 km

(b) Circuit length of overhead lines, broken down by voltage
33 kV 173 km
22 kV 22 km
11 kV 1454 km
400 V 1104 km
Total 2753 km

(c) Circuit length of underground cables, broken down by voltage
11 kV 23 km
400 V 158 km
Total 181 km

(d) Transformer capacity 197,000 kVA
(e) Maximum demand 79,493 kW
(f) Total electricity supplied from the system 373,099,000 kWh
(g) Total electricity conveyed through the system 1,477,600 kWh
(h) Total customers 29860 average for period

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

Period 1/4/95 to 31/3/96

  1. Total number of interruptions 527
    (a) Planned interruptions by TransPower Nil
    (b) Planned interruptions by Counties Power 305
    (c) Unplanned interruptions originating within Counties Power system 221
    (d) Unplanned interruptions originating with TransPower system 1
    (e) Unplanned interruptions originating with E.C.N.Z. Nil
    (f) Unplanned interruptions originating with Generators other than E.C.N.Z. Nil
    (g) Interruptions not included in (a) to (f) 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 four categories of interruption.

  1. Total number of faults per 100 circuit kilometres of prescribed voltage electric line 13.28

  2. Total number of faults per 100 circuit kilometres of underground prescribed voltage line and per different nominal line voltages:-
    11 kV underground 8.7
    Total 8.7

  3. Total number of faults per 100 circuit kilometres of overhead prescribed voltage line and per different



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✨ LLM interpretation of page content

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

🌾 Primary Industries & Resources
Electricity, Reliability, Performance Measures, Interruptions, Faults, Counties Power Limited

🌾 Disclosure of Energy Efficiency Performance Measures and Statistics for Counties Power Limited

🌾 Primary Industries & Resources
Electricity, Energy Efficiency, Performance Measures, Statistics, System Length, Transformer Capacity, Counties Power Limited

🌾 Disclosure of Reliability Performance Measures for Counties Power Limited

🌾 Primary Industries & Resources
Electricity, Reliability, Performance Measures, Interruptions, Faults, Counties Power Limited