New Zealand Gazette – 2001 – No. 115

Page 2994

✨ Electricity Reliability Statistics

Reliability Performance Measures (Schedule 1, Part 5)

Para

| SAIDI | | | Average SAIDI Targets | SAIDI Targets | Actual SAIDI |
|-------|-------|-----------------------------|---------------|--------------|
| | Class | 2001/05 | 2001 | 2000 | 1999 | 1998 |

SAIDI for total number of interruptions (= a/b)

where -
a = sum of interruption duration factors for all interruptions
b = Total consumers

| | | 1,043.04 | 235.34 | 404.01 | 518.77 |

9, 10

SAIDI Targets (=a/b)

Planned Interruptions

| Class B | 45 | 57 |

Unplanned Interruptions

| Class C | 165 | 293 |

where -
Planned Interruptions (pi)
a' = sum of interruption duration factors for all interruptions
Unplanned Interruptions (ui)
a'' = sum of interruption duration factors for all interruptions
b = Projected total consumers

| | | 1,148,616 | 1,467,504 |
| | | 4,621,644 | 7,562,754 |
| | | 25,800 | 25,800 |

SAIDI for total number of interruptions within each interruption class (= a/b)

| | Class A | 1.27 | 1.68 | 0.00 | 0.00 |
| | Class B | 24.12 | 47.85 | 164.46 | 235.95 |
| | Class C | 642.95 | 183.43 | 239.55 | 253.16 |
| | Class D | 374.71 | 2.28 | 0.00 | 29.66 |

SAIDI for total of interruptions

| | | 1,043.04 | 235.34 | 404.01 | 518.77 |

where -
a = sum of interruption duration factors for all interruptions within the particular interruption class
b = Total consumers

| Class A | 32.362 | 39.732 | - | -
| Class B | 626.231 | 1,136.102 | 3,263.380 | 4,671.102 |
| Class C | 16,690.867 | 4,346.118 | 4,753.391 | 5,011.809 |
| Class D | 9,727.476 | 54.126 | - | 587.179 |

| | | 25,960 | 23,694 | 19,543 | 19,797 |

VUW Te Waharoa — NZ Gazette 2001, No 115

Gazette.govt.nz — NZ Gazette 2001, No 115

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✨ LLM interpretation of page content

🏗️ Electricity System Reliability Statistics (continued from previous page)

Domain🏗️ Infrastructure & Public Works
KeywordsElectricity, Interruptions, Faults, Performance Measures, Statistics

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