✨ Energy Efficiency Performance Measures




9 SEPTEMBER NEW ZEALAND GAZETTE 3377

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

1. Energy Delivery Efficiency Performance Measures

1995 1996 1997 1998
(a) Load Factor 64.54% 66.47% 68.70% 73.18%
(b) Loss Ratio 5.32% 4.94% 4.10% 3.64%
(c) Capacity Utilisation 43.25% 41.95% 39.60% 35.61%

2. Statistics

1995 1996 1997 1998
(a) System length, broken down by voltage:
- 33 kV 191.8 km 191.8 km 191.8 km 202.6 km
- 11 kV 3000.8 km 3038.1 km 3081.3 km 3143.4 km
- 400 V 1684.0 km 1696.4 km 1714.1 km 1758.5 km
- Total 4876.6 km 4926.3 km 4987.2 km 5104.5 km
(b) Circuit length of overhead lines, broken down by voltage:
- 33 kV 181.1 km 181.1 km 181.1 km 190.0 km
- 11 kV 2956.9 km 2989.8 km 3029.6 km 3094.6 km
- 400 V 1507.4 km 1511.4 km 1515.1 km 1508.1 km
- Total 4645.4 km 4682.3 km 4725.8 km 4792.7 km
(c) Circuit length of underground cables broken down by voltage:
- 33 kV 10.7 km 10.7 km 10.7 km 12.6 km
- 11 kV 43.9 km 48.3 km 51.7 km 48.7 km
- 400V 176.6 km 185.0 km 199.0 km 190.4 km
- Total 231.2 km 244.0 km 261.4 km 251.7 km
(d) Transformer capacity 305,091 kVA 319,619 kVA 328,141 kVA 360,620 kVA
(e) Maximum demand 131,923 kW 134,095 kW 129,939 kW 128,298 kW
(f) Total electricity supplied from the system 706,215,792 kWh 736,177,108 kWh 758,234,709 kWh 792,983,840 kWh
(g) Total electricity conveyed through the system for other retailers Nil 8,487,862 kWh 8,532,038 kWh 510,618 kWh
(h) Total customers 42,557 43,146 43,202 43,371


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