Vector Electricity Asset Management Plan— 2020 Update
5.4
Appendix D – Schedule 12b Forecast Capacity
Vector Electricity
Company Name
1 April 2020 – 31 March 2030
AMP Planning Period
SCHEDULE 12b: REPORT ON FORECAST CAPACITY
This schedule requires a breakdown of current and forecast capacity and u�lisati on for each zonesubsta�on and current distribu�on transformer capacity. Thedata provided should beconsistent with theinforma�on provided in theAMP.Informa�on provided in this tableshould relateto theopera�on of thenetwork in its normal steady stateconfigurati on.
schref
12b(i): System Growth - Zone Substa�ons
7
U�lisa�on of Installed Firm Capacity
U�lisa�on of Installed Firm % Capacity+5yrs
Installed Firm
SecurityofSupply
Installed Firm (MVA) Capacity+5 years
Installed FirmCapacity (cause) Constraint+5 years
8
CurrentPeak Load
(MVA) Capacity
(type) Classification
(MVA) Transfer Capacity
(MVA)
%
Explana�on
ExistingZone Substations
Atkinson Road Auckland Airport
19.2 18.0
21
N-1
19.8 10.0
90% 72%
21 25
86% No constraint within +5 years No constraint within +5 years 112%
Meets Vector security criteria dueto sufficient 11kVbackup
9
25 N-1
Meets Vector security criteria
10
Meets Vector security criteria. Newload connected to the22kV network. Transfer load to Hobson 110/11kV to u�lisetheavailablespare capacity. Newload connected to 22kVnetwork Constraint relieved by CBD(Quay 22kV)capacity upgradeproject in progress Constraint relieved by theinstalla�on of Hobsonville Point zone substa�on
Avondale
25.6
24
N-1 switched
18.9
107%
24
117%
No constraint within +5 years
11
Bairds
23.2
24 N-1
21.4
97%
24
106%
No constraint within +5 years
12
Balmain
8.7
-
N-1 switched
14.5
-
-
No constraint within +5 years
13
Balmoral
13.6
24 N-1
15.1
57%
24
56%
No constraint within +5 years
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Commissioned in 2019. Meets Vector security criteria
Belmont Birkdale
13.9 22.9 10.2 16.6 25.0 14.2 18.4 19.0
14 N-1 24 N-1
10.4 16.2 13.5 15.6 13.7 10.3 15.4 14.7
99% 95%
14 24
96% 91% No constraint within +5 years No constraint within +5 years No constraint within +5 years No constraint within +5 years No constraint within +5 years No constraint within +5 years 85% No constraint within +5 years No constraint within +5 years 89% 59% 83%
Meets Vector security criteria Meets Vector security criteria
-
Brickworks Browns Bay BushRoad
-
N-1 switched N-1 switched N-1 switched
-
Meets Vector security criteria dueto sufficient 11kVbackup Meets Vector security criteria dueto sufficient 11kVbackup
16 24
104% 105%
18 24 24 24 24
103%
Meets Vector security criteria
Carbine Chevalier Clendon
24 N-1
60% 97% 79%
Meets Vector and Customer's security criteria
19
N-1
Meets Vector security criteria
24 N-1
Meets Vector security criteria. Liverpool 22kVcapacity upgrade project in progress Constraint relieved by theinstalla�on of thethird transformer Constraint relieved by load transfer to MangereCentral substa�on Constraint relieved by load transfer to MangereCentral substa�on and planned newMangereSouth substa�on Meets Vector security criteria dueto sufficient 11kVbackup
Clevedon
2.5
-
N-1 switched
3.3
-
-
No constraint within +5 years
Coatesville
10.7 21.6
-
N
9.1
-
12 24
91%
No constraint within +5 years No constraint within +5 years
Drive
24 N-1
23.2
90%
117%
EastCoast Road
15.9
-
N-1 switched
16.3
-
-
No constraint within +5 years
EastTamak i
14.8 11.6 16.8 17.9 11.8 11.6 36.0
24 N-1 24 N-1 20 N-1
6.9
62% 48% 84% 83% 88%
24 24 20 22 24 24 48
62% No constraint within +5 years No constraint within +5 years 80% No constraint within +5 years No constraint within +5 years 47% No constraint within +5 years No constraint within +5 years No constraint within +5 years No constraint within +5 years No constraint within +5 years No constraint within +5 years 82% No constraint within +5 years 73% 99% 47% 78%
Flatbush
10.3 15.8 16.6 33.9
Meets Vector security criteria
Forrest Hill
Meets Vector security criteria dueto sufficient 11kVbackup
Freemans Bay Glen Innes Greenhithe Greenmount Gulf Harbour
22
N-1
Meets Vector security criteria
13 N-1
Meets Vector security criteria dueto sufficient 11kVbackup Meets Vector security criteria dueto sufficient 11kVbackup
- N
8.3
-
48 N-1
28.4
75%
Meets Vector security criteria
Meets Vector security criteria dueto sufficient 11kVbackup Meets Vector security criteria dueto sufficient 11kVbackup
8.5
-
N
8.5
-
-
Hans
23.5
24 N-1
14.9 10.0
99%
24
119%
Meets Vector security criteria
Hauraki
9.2
-
N-1 switched N-1 switched
-
-
Helensville
14.7
9
9.8
163%
18
Meets Vector security criteria dueto sufficient 11kVbackup Meets Vector security criteria dueto sufficient 11kVbackup, Planned Newmarket 11kVcapacity upgrade Meets Vector security criteria dueto sufficient 11kVbackup Constraint relieved by reinforcement and transformer upgradeat Belmont
Henderson Valley
17.3
15
N-1 switched
21.7
114%
15
117%
No constraint within +5 years
No constraint within +5 years
23 N-1
Highbrook
8.8
0.0
38%
23
46%
Highbury
14.0
-
N-1 switched
14.7
-
24
59%
No constraint within +5 years
40
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