✨ Electricity Reliability Statistics




17 JANUARY 2005
NEW ZEALAND GAZETTE, No. 7
159

Reliability Performance Measures (Requirement 21)

SAIDI Class Average SAIDI Targets SAIDI Targets Actual SAIDI
2005/09 2005 2004 2003 2002 2001
SAIDI for total number of interruptions (= a/b) where -

a = sum of interruption duration factors for all interruptions
b = Total consumers | | | | 356.32 | 367.66 | 562.56 | 666.32 |
| SAIDI Targets (=a/b) | | | | | | | |
| Planned Interruptions | Class B | 41 | 45 | | | | |
| Unplanned Interruptions | Class C | 233 | 255 | | | | |
| where -
Planned Interruptions (pi)
a^pi = sum of interruption duration factors for all interruptions | Class B | | | 1,029,866 | 1,119,420 | | |
| Unplanned Interruptions (ui)
a^ui = sum of interruption duration factors for all interruptions
b = Projected total consumers | Class C | | | 5,796,108 | 6,343,380 | | |
| | | | | 24,876 | 24,876 | | |
| SAIDI for total number of interruptions within each interruption class (= a/b) | | | | | | | |
| Class A | | | | 3.17 | 23.27 | 0.00 | 1.26 |
| Class B | | | | 38.05 | 58.95 | 75.89 | 23.97 |
| Class C | | | | 295.24 | 265.54 | 111.98 | 638.81 |
| Class D | | | | 18.75 | 1.91 | 374.71 | 2.26 |
| Class E | | | | 0.00 | 0.00 | 0.00 | 0.00 |
| Class F | | | | 0.00 | 0.00 | 0.00 | 0.00 |
| Class G | | | | 1.11 | 0.00 | 0.00 | 0.00 |
| Class H | | | | 0.00 | 0.00 | 0.00 | 0.00 |
| Class I | | | | 0.00 | 0.00 | 0.00 | 0.00 |
| SAIDI for total of interruptions | | | | 356.32 | 367.66 | 562.56 | 666.32 |
| where -
a = sum of interruption duration factors for all interruptions within the particular interruption class | | | | | | | |
| Class A | | | | 78,750 | 587,769 | 0 | 32,862 |
| Class B | | | | 946,417 | 1,438,693 | 1,939,180 | 626,231 |
| Class C | | | | 7,344,364 | 7,213,916 | 2,861,194 | 16,680,667 |
| Class D | | | | 466,448 | 1,545,201 | 48,870 | 9,727,476 |
| Class E | | | | 0 | 0 | 0 | 0 |
| Class F | | | | 0 | 0 | 0 | 0 |
| Class G | | | | 27,721 | 0 | 0 | 0 |
| Class H | | | | 0 | 0 | 0 | 0 |
| Class I | | | | 0 | 0 | 0 | 0 |
| b = Total consumers | | | | 24,876 | 25,264 | 25,552 | 26,128 |



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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2005, No 7


Gazette.govt.nz PDF NZ Gazette 2005, No 7





✨ LLM interpretation of page content

πŸ—οΈ Statistics (Schedule 1, Part 4) (continued from previous page)

πŸ—οΈ Infrastructure & Public Works
Electricity, Reliability, Interruptions, Faults, Statistics