Electricity Asset Management Plan 2019-2029
157
Vector Limited://
FORECAST INVESTMENT SUMMARY
DESCRIPTION
FY20
FY21
FY22
FY23
FY24
FY25
FY26
FY27
FY28
FY29 TOTAL
Upgrade 22kV capacity at Liverpool zone substation
0.20
1.00
1.20
Extend the 110kV switchboard at Liverpool zone substation Install a 110kV cable between Hobson and Quay zone substations Extend the 22kV switchboard and new switchroom at Hobson zone substation 11kV feeder upgrade – Hobson - Waterfront 11kV feeder upgrade – Hobson – Nelson St 11kV feeder upgrades – Freemans Bay Extend the 22kV switchboard at Quay zone substation 22kV network roll-out
2.32
0.36
.
2.68
2.65
0.35
3.00
1.20
1.80
3.00
1.50
2.00
3.20
3.20
3.20
3.20
3.20
3.20
3.20
3.20
29.10
0.98
0.08
1.06
1.64
1.64
2.00
2.00
0.20
2.00
2.20
Total CAPEX
9.51
5.51
3.40
5.20
3.20
5.20
3.20
4.18
3.28
3.20
45.88
NEEDS STATEMENT – PENROSE Although Penrose GXP is Vector’s largest GXP there are surprisingly few projects forecast over the next ten years. Penrose GXP supplies a large, well-established area in central Auckland. Unlike the greenfields areas on the Northern network, the Symphony forecast suggests only moderate brownfields growth, offset in part, by technology-driven energy efficiencies.
The upgrade of the Newmarket substation (Newmarket - substation upgrade) is the most significant project, driven largely by commercial developments in the Newmarket area.
A project already in the construction phase is to install a new 22kV switchboard at Penrose (Penrose - new switchroom and 22kV switchboard). The switchboard is containerised and intended to see out the residual life of the 22kV subtransmission cables supplying Onehunga and Westfield substations. When the subtransmission cables to these substations are replaced they will be uprated to 33kV and connected to the Penrose 33kV bus. The switchroom will be moved to one of the Northern network zone substations as a permanent replacement for an end-of-life outdoor switchyard.
TARGETED OUTCOMES
CUSTOMER EXPERIENCE
SAFETY
RELIABILITY
RESILIENCE
OPERATIONAL EFFICIENCY
CYBER SECURITY AND PRIVACY
OPTIONS ASSESSMENT For major projects, i.e. above $4M (level to be confirmed), include the following in this section: Technical feasibility, economic analysis, OPEX and CAPEX costs, net present value or net present cost, service levels, risks, etc.
DESCRIPTION
DISCUSSION OF OPTION
ESTIMATED COST (NPV IF APPLICABLE)
STATUS
Address a forecast security shortfall on Newmarket substation
Option 1: Newmarket substation upgrade. Growth within Newmarket is forecast to compromise the security of Newmarket substation. This project establishes a second substation on the existing Newmarket substation site
$7.7M Selected
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