10 Average SAIDI target for 2007/2008 to 2010/2011 years
Class
Type
Target
Class B - Planned - by Line Owners
40
Class C - Unplanned - by Line Owners
70
11 The SAIDI for the total number of interruptions within each interruption class
2007
2006
2005
2004
Class A - Planned - by Transpower
2.09
0
3.07
5.47
Class B - Planned - by Line Owners
55.65
76.39
71.31
42.11
Class C - Unplanned - by Line Owners
110.49
69.49
188.54
145.64
Class D - Unplanned - by Transpower
141.64
5.24
109.14
12.27
Class E - Unplanned - by ECNZ
0
0
0
0
Class F - Unplanned - by other generation
0
0
0
0
Class G - Any other loss of supply
0
0
0
0
Total
309.87
151.12
372.06
205.49
12 The SAIFI for the total number of interruption
2007
2006
2005
2004
Total
7.88
2.04
4.23
2.40
13 SAIFI target for 2007/2008
Class
Target
Class B - Planned - by Line Owners
0.25
Class C - Unplanned - by Line Owners
1
14 Average SAIFI target for 2007/2008 to 2011/2012 years
Class
Target
Class B - Planned - by Line Owners
0.25
Class C - Unplanned - by Line Owners
1
15 The SAIFI for the total number of interruptions within each interruption class
2007
2006
2005
2004
Class A - Planned - by Transpower
0.00
0.00
0.01
0.02
Class B - Planned - by Line Owners
0.33
0.28
0.35
0.22
Class C - Unplanned - by Line Owners
2.64
1.50
2.89
2.75
Class D - Unplanned - by Transpower
4.91
0.66
0.99
0.17
Class E - Unplanned - by ECNZ
0
0
0
0
Class F - Unplanned - by other generation
0
0
0
0
Class G - Any other loss of supply
0
0
0
0
Total
7.88
2.04
4.23
2.4
Comparative figures for 2004 to 2006 have been restated in line with Westpower's 2007 Price Path and Quality Threshold Disclosure due to an error that was detected in the way the SAIFI statistic had been derived in the past. In prior periods an 'average number of network connection points affected' was used in the numerator of the calculation, rather than 'the number of network connection points affected' as required in the Regulations.
NZ Gazette 2008, No 33
