Network Tasman Limited

Line Business Performance Measures

Performance Measures and Statistics

For the year ended 31 March 2005

Financial performance measures

(a) Return on Funds | 6.41% | 8.68% | 10.27% | 10.08% |
(b) Return on Equity | 4.72% | 6.06% | 6.96% | 6.59% |
(c) Return on Investment - as restated (excludes revaluation) | 4.68% | 42.93%* | 7.33% | 6.93% |

Efficiency performance measures

(a) Direct Line Costs per Kilometre | $1,318 | $1,258 | $1,232 | $934 |
(b) Indirect Line Costs per Consumer | $48 | $43 | $42 | $38 |

Energy delivery efficiency performance measures and statistics

1. Energy delivery efficiency performance measures

(a) Load Factor | 65.10% | 64.39% | 66.12% | 63.30% |
(b) Loss Ratio | 4.40% | 3.88% | 4.25% | 3.39% |
(c) Capacity Utilisation | 42.80% | 42.50% | 43.24% | 44.67% |

2. Statistics

(a) System Length

• 33 kV system | 136.35 | 133.73 | 126.78 | 125.51 |

• 22 kV system | 29.92 | 0.00 | 0.00 | 0.00 |

• 11 kV system | 2012.20 | 2060.85 | 2001.64 | 1989.13 |

• 6.6 kV system | 34.37 | 34.37 | 34.37 | 34.37 |

• 400 V system | 1034.01 | 1015.33 | 998.00 | 972.70 |

  Total Kilometres | 3246.85 | 3244.28 | 3160.79 | 3121.71 |

(b) System Length - Overhead

• 33 kV system | 124.04 | 121.83 | 121.12 | 120.04 |

• 22 kV system | 18.22 | 0.00 | 0.00 | 0.00 |

• 11 kV system | 1858.61 | 1908.09 | 1873.27 | 1867.89 |

• 6.6 kV system | 33.03 | 33.03 | 33.03 | 33.03 |

• 400 V system | 575.63 | 581.08 | 589.69 | 604.88 |

  Total Kilometres | 2609.53 | 2644.03 | 2617.11 | 2625.84 |

(c) System Length - Underground

• 33 kV system | 12.31 | 11.90 | 5.66 | 5.47 |

• 22 kV system | 11.70 | 0.00 | 0.00 | 0.00 |

• 11 kV system | 153.59 | 152.76 | 128.37 | 121.24 |

• 6.6 kV system | 1.34 | 1.34 | 1.34 | 1.34 |

• 400 V system | 458.38 | 434.25 | 408.31 | 367.82 |

  Total Kilometres | 637.32 | 600.25 | 543.68 | 495.87 |

(d) Transformer Capacity (kVA) | 315,001 | 304,205 | 291,526 | 276,450 |
(e) Maximum Demand (kW) | 134,977 | 129,290 | 126,103 | 123,500 |
(f) Total electricity entering the system (before losses) (kWh) | 770,267,682 | 729,267,287 | 730,401,537 | 684,837,910 |

(g) Total amount of electricity supplied from the system (after losses of electricity) on behalf of each person (kWh)

• Retailer A | 469,201,721 | 412,727,633 | 304,463,864 | 286,086,967 |
• Retailer B | 63,899,825 | 102,072,527 | 9,507,894 | 6,774,341 |
• Retailer C | 188,074,456 | 174,954,119 | 1,042,196 | 931,754 |
• Retailer D | 1,681,408 | 673,561 | 191,883,213 | 165,792,163 |
• Retailer E | 15,330,318 | 10,574,262 | 192,477,170 | 187,190,919 |
• Retailer F | - | - | - | 13,127,997 |
• Retailer G | - | - | - | 39,774 |
• Generator 1 | 1,822,725 | 1,835,341 | 1,831,325 | 1,670,028 |