Solar & Battery Installation Cape Town Local Installers & Quotes
ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in Cape Town using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.
Solar Design Cape Town
Energy Usage
To choose the right solar system in Cape Town, start by understanding your daily electricity consumption. Most households in Cape Town use around 15 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 Cape Town:
Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.
Solar System Sizing
You'll need around 3.9kW of solar to match your average consumption. For best results, size your system between 5.9kW and 7.9kW to account for fluctuations in solar output throughout the day and year.
Expect around 28.4 kWh daily from a 6.6 kW system in Cape Town, with production varying from 3.43 kWh/kW/day in June to 4.82 kWh/kW/day in October.
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 Cape Town
Solar Battery Sizing
Without battery storage, a 6.6 kW system in Cape Town achieves approximately 50% energy self-sufficiency, with the remaining 50% supplied by the grid. Including a 10 kWh battery typically raises annual self-sufficiency to around 99%, with grid reliance dropping to 1%.
Use Photonik's complete design tool for detailed battery savings and return on investment analysis.
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 Cape Town
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 Cape Town
Understanding Solar & Battery System Costs
Solar systems in Cape Town are priced around R106,088 for a 6.6 kW installation, rising to approximately R213,957 when including a 10 kWh battery. Solar-only systems typically pay for themselves in around 5.9 years, whilst adding battery storage usually extends payback whilst increasing energy independence.
Cost estimates cover equipment, installation labour, and applicable taxes. Modify the system size and battery storage sliders to explore different investment levels and payback periods.