Electricity Asset Management Plan 2019-2029
269
Vector Limited://
Forecast Capacity (Schedule 12b)
Vector Electricity
Company Name
1 April 2019 – 31 March 2029
AMP Planning Period
SCHEDULE 12b: REPORT ON FORECAST CAPACITY
This schedule requires a breakdown of currentand forecastcapacity and utilisation for each zonesubstation and currentdistribution transformer capacity.Thedata provided should beconsistentwith the information provided in theAMP. Information provided in this tableshould relate to theoperation of thenetwork in its normal steady stateconfiguration.
sch ref
12b(i): System Growth - Zone Substations
7
Utilisation of Installed Firm Capacity %
Utilisation of Installed Firm Capacity +5yrs %
Installed Firm Capacity +5 years (MVA)
Installed Firm Capacity Constraint +5 years (cause)
Installed Firm Capacity (MVA)
Security of Supply Classification (type)
8
Current Peak Load (MVA)
Transfer Capacity (MVA)
Existing Zone Substations
Explanation
Atkinson Road Auckland Airport
Meets Vector security criteria Meets customers security criteria
9
21 19 28 27 14 13 24 11 18 23 17 22 22 11 26 17 16 11 16 9 3 16 13 40 26 10 15 18 16 20 17 14 9 9 21
21 N-1 25 N-1
21 10 26 21 15 13 24 12 18 23 10 15 15 11 25 17 9 3 34 13 28 15 10 15 18 16 20 17 11 9 7 10 16 17
99% 75%
24 25 24 24 24 14 24 18 18 24 22 24 24
85% No constraintwithin +5 years
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 32 33 34 35 36 37 38 39 40 41 42 43 30
112% Other
Avondale
Meets Vector security criteria when combined with 11kVbackup Meets Vector security criteria when combined with 11kVbackup
24 N-1 switched 24 N-1 switched
118% 112%
122% No constraintwithin +5 years 113% No constraintwithin +5 years No constraintwithin +5 years 56% No constraintwithin +5 years 94% No constraintwithin +5 years 97% No constraintwithin +5 years 84% No constraintwithin +5 years 99% No constraintwithin +5 years 96% No constraintwithin +5 years 77% No constraintwithin +5 years 93% No constraintwithin +5 years 93% No constraintwithin +5 years No constraintwithin +5 years 91% No constraintwithin +5 years 123% No constraintwithin +5 years 102% No constraintwithin +5 years 83% No constraintwithin +5 years 78% No constraintwithin +5 years No constraintwithin +5 years 67% No constraintwithin +5 years No constraintwithin +5 years 90% No constraintwithin +5 years No constraintwithin +5 years 124% No constraintwithin +5 years No constraintwithin +5 years 85% No constraintwithin +5 years 121% No constraintwithin +5 years 61% No constraintwithin +5 years 66% No constraintwithin +5 years 89% No constraintwithin +5 years 79% No constraintwithin +5 years 51% No constraintwithin +5 years 115% No constraintwithin +5 years
Bairds
Balmain Balmoral Belmont Birkdale Brickworks Browns Bay Bush Road Carbine Chevalier Clendon Clevedon Coatesville
Meets Vector security criteria Meets Vector security criteria Meets Vector security criteria Meets Vector security criteria
- N
-
-
24 N-1 14 N-1
56% 96%
24 N-1 switched - N-1 switched 10 N-1 switched
101%
Constraint relieved by the installation of thesecond transformer
-
Constraint relieved by transformer capacity upgrade
184%
Meets Vector security criteria when combined with 11kVbackup
24 N-1 22 N-1
98% 79%
Meets Vector security criteria
Constraint relieved by subtransmission circuit replacement
19 N-1 switched
115%
Meets Vector security criteria Meets Vector security criteria
24 N-1
93%
- N-1 switched
- -
-
Constraint relieved by the installation of thesecond transformer Constraint relieved by load transfer to Newmarket substation
- N
12 24
Drive
24 N-1 switched
110%
EastCoastRoad
Meets Vector security criteria
- N
-
-
EastTamaki
Meets Vector security criteria when combined with 11kVbackup
24 N-1 24 N-1 20 N-1
68% 47% 81%
24 24 20
Flatbush
Meets Vector security criteria Meets Vector security criteria
ForrestHill
Constraint relieved by load transfer to theCBD 22kVdistribution network Constraint relieved by transformer and subtransmission circuit replacements Constraint relieved by theHobsonvillePoint zonesubstation
Freemans Bay
22 N-1
98%
22
Glen Innes Greenhithe Greenmount Gulf Harbour
13 N-1 switched
119%
24
- N
-
-
Meets Vector security criteria Meets Vector security criteria
48 N-1
84%
48
- N
-
-
Hans
Meets Vector security criteria when combined with 11kVbackup
24 N-1 switched - N-1 switched 9 N-1 switched 15 N-1 switched
107%
24
Hauraki
Meets Vector security criteria
-
-
Helensville
Constraint relieved by transformer capacity upgrade
169% 118%
18 15 21 24 24 24 30
Henderson Valley
Meets Vector security criteria when combined with 11kVbackup
Highbrook Highbury
Meets Vector security criteria
21 N-1
-
44%
Constraint relieved by the installation of thesecond transformer
- N
-
Hillcrest
Meets Vector security criteria Meets Vector security criteria Meets Vector security criteria
24 N-1 24 N-1 30 N-1
84% 71% 46%
Hillsborough
Hobson 110/11kV
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