Electricity Asset Management Plan 2019-2029
164
Vector Limited://
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 the emerging impact of solar/PV on the network 16
Option 1: Do nothing. As solar/PV penetration increases the numbers of customers unable to fully utilise their investment in solar/PV will increase, leading to increased complaints to Vector Option 2: Symphony scenario. Upgrade the network to relieve voltage and capacity constraints forecast by the Symphony scenario Option 3: Pop scenario. Upgrade the network to relieve voltage and capacity constraints forecast by the Symphony scenario. Note that although the expected cost due to solar-related issues is lower than the Symphony scenario, other POP expenditure is higher making the overall POP scenario more expensive over the ten years Option 1: Do nothing. As EV penetration increases the impact on the network will be increased incidence of low- voltage complaints and increased incidences of network overloading. These need to be addressed Option 2: Symphony scenario. Apply control to 90% of the EV installations to reduce the impact of peak-time EV charging. We have assumed that we will invest in control devices until 2024, after which EV charger control will be mandatory Option 2: Symphony scenario. Additional investment in primary assets to provide extra network capacity for the 10% of the EV fleet charging over peak times Option 3: Pop scenario. Apply control to 50% of the EV installations to reduce the impact of peak-time EV charging. We have assumed that we will invest in control devices until 2024, after which EV charger control will be mandatory Option 3: Pop scenario. Additional investment in primary assets to provide extra network capacity for the 50% of the EV fleet charging over peak times
Rejected
$43.5M
Selected
$12.0M
Rejected
Address the emerging impact of EV charging on the network
Rejected
$12.2M
Selected
$5.5M Selected
$6.8M Rejected
$43.1M Rejected
FORECAST INVESTMENT SUMMARY ($MILLION NOMINAL)
DESCRIPTION
FY20
FY21
FY22
FY23
FY24
FY25
FY26
FY27
FY28
FY29 TOTAL
Network investment specifically related to residential solar/PV
0.11
0.27
0.57
0.85
2.68
3.59
6.02
7.44
10.21
11.77
43.51
Investment in EV charger control
1.94
1.94
1.94
1.94
4.46
12.22
Network investment specifically related to EV chargers
0.29
0.09
0.30
0.23
0.34
0.62
0.78
1.41
0.71
0.74
5.51
Total CAPEX
2.34
2.30
2.81
3.02
7.48
4.21
6.80
8.85
10.92
12.51
61.24
NEEDS STATEMENT – UNSPECIFIED REINFORCEMENT PROGRAMMES Within the growth area most of the major projects are identified and budgets assigned within the AMP process. While all care is taken to identify projects, some of the smaller reinforcement projects and those projects that arise during the year ―
16 Although in this instance the Pop scenario is lower cost than the Symphony scenario, overall Pop is the more expensive option
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