Solar & Battery Installation Perth - South East Local Installers & Quotes
ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in Perth - South East using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.
Solar Design Perth - South East
Energy Usage
To choose the right solar system in Perth - South East, start by understanding your daily electricity consumption. Most households in Perth - South East use around 25 kWh per day, whilst energy efficient homes can reduce this to roughly half.
Lowering energy usage before solar installation—via improved insulation and efficient appliances—often reduces required system size and enhances financial returns.
Typical energy usage per person per day in Perth - South East:
Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.
Solar System Sizing
A 6.6kW solar system would typically cover your average daily electricity consumption. Systems sized between 9.9kW and 13.2kW perform best, accounting for natural fluctuations in solar production.
A 6.6 kW solar installation in Perth - South East typically produces 28.6 kWh per day on average, with seasonal output ranging between 3.54 kWh/kW/day (June) and 4.84 kWh/kW/day (February).
Solar & Energy Savings
Calculate Heat Pump & EV Savings
Electrify your home by replacing gas heating, petrol vehicles, and other fossil fuel appliances with electric alternatives powered by clean solar energy. This delivers significant additional financial savings and substantial carbon emission reductions. Our calculator helps you compare costs and model the financial impact of switching to electric appliances and vehicles.
How Solar Reduces Your Electricity Bills
The calculations below show how your electricity bills change with solar. Your Old Bill of - per month (- annually) is calculated from your total energy consumption multiplied by the grid electricity rate. Your New Bill of - per month (- annually) accounts for solar generation, the percentage you use directly (self-consumption), remaining grid consumption, and feed-in credits for excess energy exported to the grid. This results in monthly savings of - (- annually).
Battery Storage Perth - South East
Solar Battery Sizing
With solar-only (no battery), a 6.6 kW system provides approximately 50% self-usage in Perth - South East, depending on your consumption patterns, drawing 50% from the grid. With a 10 kWh battery added, energy independence increases to approximately 86% per year, whilst grid dependency falls to 14%.
The full Photonik tool provides detailed battery savings and return on investment calculations.
Energy Self Sufficiency Calculator*
*Note: This calculator provides simplified battery self-sufficiency estimates. For accurate per-hour simulations that account for solar generation patterns, consumption timing, battery charging/discharging cycles, and efficiency losses across all seasons, use the full Photonik design tool.
Panel Placement Tool Perth - South East
This is a simple panel placement tool that lets you quickly estimate panel count for a single roof area. Try Photonik for advanced features:
- Multiple panel groups
- Custom roof angles
- Panel orientation
- Shade loss calculations
- Panel selection (1000+ models)
- Full integration with our design tool
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Solar & Battery System Cost Perth - South East
Understanding Solar & Battery System Costs
Expect to invest approximately $7,661 for a 6.6 kW solar system in Perth - South East, or around $12,904 with a 10 kWh battery included. Payback periods for solar-only installations average approximately 5.1 years, whilst battery storage extends payback but significantly improves energy independence.
The breakdown covers equipment, installation, and taxes. Adjust the system size and battery sliders to see how different configurations affect your investment and payback timeline.
STC Rebates Perth - South East
STC rebates in Perth - South East are calculated based on your system size, location zone factor, and deeming period until 2031.
Use our full design tool for detailed system design, panel placement, and professional proposals.