✨ Electricity Reliability Statistics
1 SEPTEMBER NEW ZEALAND GAZETTE
Year Ended 31 March
6 Reliability Performance Measures
Number of Interruptions
|
1997 |
1996 |
1995 |
| A Planned Transpower |
0 |
0 |
0 |
| B Planned Distributor |
56 |
21 |
57 |
| C Unplanned Distributor |
88 |
68 |
117 |
| D Unplanned Transpower |
0 |
1 |
0 |
| E Unplanned ECNZ |
0 |
0 |
0 |
| F Unplanned Generator |
0 |
0 |
0 |
| G Unplanned Other |
0 |
0 |
0 |
| Total |
144 |
90 |
174 |
Total Number of Faults per 100km of HV System
|
1997 |
1996 |
1995 |
|
8.696 |
5.466 |
10.589 |
Total Number of Faults per 100km of Underground HV Circuit
|
1997 |
1996 |
1995 |
| 33kV |
0.000 |
0.000 |
0.148 |
| 11kV |
10.252 |
11.503 |
35.632 |
| Total |
10.109 |
11.322 |
35.321 |
Total Number of Faults per 100km of Overhead HV Circuit
|
1997 |
1996 |
1995 |
| 33kV |
0.000 |
1.450 |
0.725 |
| 11kV |
5.740 |
5.768 |
11.220 |
| Total |
5.256 |
5.402 |
10.330 |
SAIDI
|
1997 |
1996 |
1995 |
| Total Interruptions |
103.580 |
90.745 |
127.507 |
| A Planned Transpower |
0.000 |
0.000 |
0.000 |
| B Planned Distributor |
49.940 |
27.938 |
73.566 |
| C Unplanned Distributor |
53.640 |
61.117 |
53.941 |
| D Unplanned Transpower |
0.000 |
1.690 |
0.000 |
| E Unplanned ECNZ |
0.000 |
0.000 |
0.000 |
| F Unplanned Generator |
0.000 |
0.000 |
0.000 |
| G Unplanned Other |
0.000 |
0.000 |
0.000 |
SAIFI
|
1997 |
1996 |
1995 |
| Total Interruptions |
0.930 |
1.193 |
0.923 |
| A Planned Transpower |
0.000 |
0.000 |
0.000 |
| B Planned Distributor |
0.310 |
0.202 |
0.521 |
| C Unplanned Distributor |
0.620 |
0.850 |
0.402 |
| D Unplanned Transpower |
0.000 |
0.141 |
0.000 |
| E Unplanned ECNZ |
0.000 |
0.000 |
0.000 |
| F Unplanned Generator |
0.000 |
0.000 |
0.000 |
| G Unplanned Other |
0.000 |
0.000 |
0.000 |
CAIDI
|
1997 |
1996 |
1995 |
| Total Interruptions |
110.900 |
76.057 |
138.059 |
| A Planned Transpower |
0.000 |
0.000 |
0.000 |
| B Planned Distributor |
160.160 |
138.100 |
141.112 |
| C Unplanned Distributor |
86.220 |
71.902 |
134.103 |
| D Unplanned Transpower |
0.000 |
12.000 |
0.000 |
| E Unplanned ECNZ |
0.000 |
0.000 |
0.000 |
| F Unplanned Generator |
0.000 |
0.000 |
0.000 |
| G Unplanned Other |
0.000 |
0.000 |
0.000 |
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Disclosure of Financial and Efficiency Performance Measures for Waitaki Power Ltd
(continued from previous page)
🏭 Trade, Customs & Industry
Financial Performance, Efficiency Measures, Accounting Return, Network Statistics, Energy Delivery, Optimised Deprival Valuation
NZ Gazette 1997, No 112