AMP 2019-2029

Electricity Asset Management Plan 2019-2029

270

Vector Limited://

Constraint relieved by load transfer to theCBD 22kVdistribution network Constraint relieved by CBD subtransmission reinforcement Constraint relieved by the installation of HobsonvillePoint zone substation

Hobson 22/11kV

44 45 46 47 48 49 50 51 52 53 54 55 57 58 59 60 61 62 63 64 65 66 67 68 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 56 69

18 50 22 41 20

18 N-1

8

98%

18 80 15 48 15

109% No constraintwithin +5 years 108% No constraintwithin +5 years 194% No constraintwithin +5 years 84% No constraintwithin +5 years 128% No constraintwithin +5 years

Hobson 22kV

40 N-1 switched

37

125%

Hobsonville

15 N-1 switched

22 16 20 17 23

143%

Howick

Meets Vector security criteria

48 N-1

85%

James Street Keeling Road

Meets Vector security criteria when combined with 11kVbackup

15 N-1 switched - N-1 switched

132%

Meets Vector security criteria

8

-

-

No constraintwithin +5 years

Kingsland Laingholm Lichfield Liverpool

Meets Vector security criteria when combined with 11kVbackup

24

24 N-1

98% 94% 88% 70% 71%

24

105% No constraintwithin +5 years 88% No constraintwithin +5 years

Meets Vector security criteria Meets customers security criteria Meets Vector security criteria Meets Vector security criteria

9

9 N-1

9

9

18 34

20 N-1 48 N-1 140 N-1

-

20 48

88% Other

22 57 16

74% No constraintwithin +5 years 69% No constraintwithin +5 years 65% No constraintwithin +5 years

Liverpool 22kV MangereCentral

100

150

Constraint relieved by the installation of the third transformer

29

24 N-1 switched

121%

48

MangereEast

Constraint relieved by load transfer to ManagereCentral substation

32

24 N-1 switched

23

131%

24

143% No constraintwithin +5 years

MangereWest

Constraint relieved by load transfer to ManagereCentral substation Meets Vector security criteria when combined with 11kVbackup

25 20 32 51 17 11 42 9

30 N-1

3

84%

30 14 48 48 18 24

127% No constraintwithin +5 years 140% No constraintwithin +5 years 69% No constraintwithin +5 years 103% No constraintwithin +5 years 51% No constraintwithin +5 years 106% No constraintwithin +5 years No constraintwithin +5 years 87% No constraintwithin +5 years No constraintwithin +5 years No constraintwithin +5 years 84% No constraintwithin +5 years 106% No constraintwithin +5 years 137% No constraintwithin +5 years No constraintwithin +5 years No constraintwithin +5 years 66% No constraintwithin +5 years 99% No constraintwithin +5 years No constraintwithin +5 years 95% No constraintwithin +5 years 81% No constraintwithin +5 years 95% No constraintwithin +5 years 124% No constraintwithin +5 years 65% No constraintwithin +5 years 85% No constraintwithin +5 years 106% No constraintwithin +5 years 88% No constraintwithin +5 years 44% Other 77% No constraintwithin +5 years

Manly

14 N-1 switched

20 27 33 17 11 30 13 16 14 3 8

145%

Manukau Manurewa Maraetai McKinnon

Meets Vector security criteria

48 N-1

66%

Meets Vector security criteria when combined with 11kVbackup

48 N-1 switched

105%

Meets Vector security criteria Meets Vector security criteria Meets Vector security criteria Meets Vector security criteria Meets Vector security criteria

18 N-1 24 N-1

48% 72%

Mcleod Road

- N

-

-

McNab Milford

48 N-1

88%

48

8 7

- N

- -

- -

MtAlbert

Meets Vector security criteria when combined with 11kVbackup

- N-1 switched

MtWellington

Meets Vector security criteria Meets Vector security criteria

20 14

24 N-1 14 N-1

81% 99%

24 14

NewLynn

Constraint relieved by the installation of additional capacity at Newmarket substation Constraint relieved by load transfer to theCBD 22kVdistribution network Meets Vector security criteria when combined with 11kVbackup

Newmarket

33

48 N-1

32

69%

72

Newton

23

19 N-1 switched

20

121%

19

Ngataringa Bay

7 9

- N - N

7 9

- -

- -

Northcote Onehunga

Meets Vector security criteria

Constraint relieved by subtransmission circuit replacement

15 21

15 N-1 switched

14 16

101%

24 22

Orakei Oratia Orewa Otara

Meets Vector security criteria Meets Vector security criteria

22 N-1

99%

6

- N-1 switched 15 N-1 switched

7

-

-

Constraint relieved by 11kV switchgear replacement

18 28 20 23 28 10 16 22 43 14 27 12 22 23 15 22

18 27

117%

24 36 44 24 23 18 18 24 60

Meets Vector security criteria Meets customers security criteria Meets Vector security criteria

36 N-1 44 N-1 24 N-1

79% 44% 98%

Pacific Steel Pakuranga

-

16

Papakura

Meets Vector security criteria when combined with 11kVbackup

23 N-1 switched

9

118%

Parnell

Meets Vector security criteria

14 N-1

16 13 21 38 14 24 12 25 11 15 22

71%

Ponsonby

Constraint relieved by subtransmission circuit replacement

14 N-1 switched

109%

Quay

Constraint relieved by load within theCBD 22kVdistribution network

24 N-1 60 N-1

92% 72%

Quay 22kV

Meets Vector security criteria Meets Vector security criteria

Ranui

- N

-

-

No constraintwithin +5 years

Remuera

Constraint relieved by load transfer to Newmarket substation Constraint relieved by theWaimauku transformer upgradeand 11kV cableproject

24 N-1 switched

113%

24

121% No constraintwithin +5 years

Riverhead Rockfield Rosebank Rosedale

9 N-1 switched

131%

9

140% No constraintwithin +5 years 90% No constraintwithin +5 years 105% No constraintwithin +5 years 73% No constraintwithin +5 years 154% No constraintwithin +5 years

Meets Vector security criteria

24 N-1

90%

24 22 24 14

Meets Vector security criteria when combined with 11kVbackup Constraint relieved by the installation of thesecond transformer

22 N-1 switched

105%

- N

-

SabuliteRoad

Constraint relieved by transformer capacity upgrade

14 N-1 switched

156%

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