New Zealand Gazette – 2004 – No. 171

Page 4289

✨ Electricity Information Disclosure



The Electricity Information Disclosure Requirements 2004

(For 12 months ending 30 June 2004, 30 June 2003, 30 June 2002, 30 June 2001)

Part 4

Energy Delivery Efficiency Performance Measures and Statistics

(Disclosure under Requirement 20)

1. Energy delivery efficiency performance measures

2003/04 2002/03 2001/02 2000/01
(a) Load factor %
Electrical energy entering the transmission system as percentage of maximum demand times hours per year 71.05 70.50 67.09 68.65
(b) Loss ratio %
Transmission losses as percentage of energy entering the system 3.82 : 2.90 4.61
(c) Capacity utilisation %
Maximum demand as percentage of total transformer capacity # 69.49 : 65.71 77.00

2. Statistics

(a) System length, broken down by voltage

Total * km 17,041 17,145 17,288
350 kV (HVDC) km 611 611 611
270 kV (HVDC) km 611 611 611
0 kV (HVDC earth electrode) km 31 31 31
220 kV (HVAC) km 8,375 8,375 8,357
110 kV (HVAC) km 6,073 6,105 6,134
66/50/33/11 kV ^& km 1,339 1,429 1,545

(b) Circuit length of overhead electric lines, broken down by voltage

Total ^ km 16,956 17,049 17,203
350 kV (HVDC) km 571 571 571
270 kV (HVDC) km 571 571 571
0 kV (HVDC earth electrode) km 31 31 31
220 kV (HVAC) km 8,376 8,375 8,357
110 kV (HVAC) km 6,068 6,103 6,179
66/50/33/11 kV ^& km 1,339 1,429 1,545

NB: HVDC link submarine power cables measure approximately 80km. Broken down by voltage:

| 350 kV (HVDC) | km | 40 |
| 270 kV (HVDC) | km | 40 |

(c) Total circuit length of underground electric lines (110 kV HVAC)

| km | 5 | 5 | 5 |

(d) Transformer capacity (kilovolt amperes)

| ONAN Rating # | kVA | 8.77x10^6 | 8.64x10^6 | 8.53x10^6 |
| Maximum Continuous Rating | kVA | 12.65x10^6 | 11.87x10^6 | 12.06x10^6 |

*(e) Maximum demand (kilowatts) $**

| kW | 6.09x10^6 | 6.04x10^5 | 6.60x10^5 |

*(f) Total electricity entering the system (before losses of electricity), in kilowatt hours: $**

| kWh | 38.02x10^9 | 37.28x10^9 | 36.42x10^9 |

*(g) The total amount of electricity (in kilowatt hours) supplied from the system (after losses of electricity) during the financial year on behalf of each person that is an electricity generator or an electricity retailer, or both: $@**

| kWh | 35.65x10^9 | 35.69x10^9 | 34.72x10^9 |

(h) Total connected customers

| | 48 | 48 | 49 |

  • To 2 decimal places only, higher accuracy used in calculations.

    Installed transformer capacity based on ONAN ratings.

    @ Including sales to direct connected customers.
    & 2003/04 data excludes circuits leased from others and operated by Transpower. 34km owned by Transpower but operated by others not included above.
    $ For all years, figures for maximum demand kW and kWh injected and supplied include loads on circuits leased by Transpower. The effect of these circuits cannot be measured as metering equipment is not installed at the inter-connection points with Transpower-owned assets, but the difference is estimated to be no more than 0.1% of totals.
    Loads on Transpower assets leased to others are not included as Transpower does not collect operational data for these assets.



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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2004, No 171


Gazette.govt.nz — PDF NZ Gazette 2004, No 171




✨ LLM interpretation of page content

🏭 Certificate of Financial Statements and Performance Measures for Transpower New Zealand Limited (continued from previous page)

🏭 Trade, Customs & Industry
16 December 2004
Financial Statements, Performance Measures, Electricity, Transpower, Directors