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Perth · Mount Lawley
Solar and battery guidance for Mount Lawley homes in Inner Northern. Sized battery options for 18-24 kWh daily usage.
What-if simulator. Drag the timeline + sliders to see how a system would behave on a typical Mount Lawley day. Weather + grid status update live when the APIs are reachable.
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W/m² irradiance
0 kW
Est. generation now
22.6 kWh
Avg daily yield
Household Type
Annual savings
$1,834
Monthly average
$153
Solar used at home
5,078 kWh/yr
Exported to grid
3,173 kWh/yr
Based on 5 kW solar × 5 sun hours × Perth derate, with a 10 kWh battery offsetting peak-rate Synergy A1 usage and exporting the surplus at DEBS peak/off-peak rates. Real savings depend on your specific tariff plan, usage pattern, and installation — an installer confirms the final quote.
Monthly Savings
~$153
Based on 5kW system, 70% self-consumption, 32c/kWh
Sun Hours
5 hrs/day
Annual average peak sun hours for Mount Lawley
DEBS Peak Window
3pm–9pm
Export at 10c/kWh during peak, 2c/kWh off-peak
Western Power Grid: Normal
No planned outages for Mount Lawley (6050). Network operating normally.
Standard home
10 kWh
Large home
20–26 kWh
Retrofit option: AC-coupled retrofits suit established systems
Capacity ranges only — Find My Battery matches you to the specific brand and model that fits your situation.
Backup Battery: Optional
Central Perth has excellent grid reliability with the lowest outage rates in the metro area. Backup batteries are rarely needed for power security. Focus on maximising self-consumption and DEBS exports.
55
SAIDI (min/yr)
0.7
Outages/yr
79
Avg duration (min)
Pass
ERA benchmark
Common outage causes in this zone:
Statewide support
WA Battery Scheme
Capped at 10 kWh, Synergy customers
$1,300
up to
Federal STCs
13.5 kWh battery example. 6.8 STCs/kWh times ~$39.9
~$3,631
rebate
Interest-free loan
Available alongside the rebate for eligible households
$10k
up to
Rebates also apply to retrofit installations on existing solar.
Ongoing earnings
Synergy Battery Rewards
Up to 30 dispatch events a year, 2-6 hours each
30
events/yr
Event payment
Paid per kWh your battery exports during a dispatch event
$0.70
per kWh
Typical annual earnings
For a 10-13 kWh battery across 15-25 events at 70c/kWh
~$100-180
per year
VPP enrolment is mandatory for the WA battery rebate from May 2026.
Upload your Synergy bill on BillWise to see exactly where your money goes and how much you could save with solar + battery.
Analyse your bill on BillWise →