Solar & Battery Installation Merton Local Installers & Quotes
ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in Merton using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.
Solar Design Merton
Energy Usage
How much energy your Merton home uses daily directly impacts the solar system size you'll need. Typical homes consume approximately 15 kWh daily on average, though well-insulated properties with efficient appliances often use significantly less.
Reducing your energy consumption before installing solar can lower your system size requirements and improve returns. Consider upgrading insulation and switching to energy efficient appliances first.
Typical energy usage per person per day in Merton:
Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.
Solar System Sizing
To offset your average consumption, you'd need roughly 3.9kW of solar capacity. Systems sized between 5.9kW and 7.9kW perform best, accounting for natural fluctuations in solar production.
Expect around 24.9 kWh daily from a 6.6 kW system in Merton, with production varying from 2.09 kWh/kW/day in December to 4.63 kWh/kW/day in August.
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 Merton
Solar Battery Sizing
With solar-only (no battery), a 6.6 kW system provides approximately 45% self-usage in Merton, depending on your consumption patterns, drawing 55% from the grid. Installing a 10 kWh battery boosts your energy independence to around 96% per year, cutting grid dependency down to 4%.
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 Merton
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 Merton
Understanding Solar & Battery System Costs
A 6.6 kW solar system in Merton costs approximately £8,752, while adding a 10 kWh battery increases the total to around £13,557. Solar-only systems typically pay for themselves in around 7.6 years, whilst adding battery storage usually extends payback whilst increasing energy independence.
The pricing breakdown includes equipment, installation labour, and applicable taxes. Use the sliders to adjust system size and battery capacity to see how pricing and payback change.
Solar Rebates & Incentives Merton
While there are currently no federal government rebates for solar panel installations in the UK, there are still financial benefits available for solar system owners.
The Smart Export Guarantee (SEG) allows you to earn money by selling excess solar electricity back to the grid. Energy suppliers with more than 150,000 customers are required to offer SEG tariffs, which pay you for the renewable electricity you export. Rates vary by supplier and are typically set competitively.
Additionally, installing solar panels can significantly reduce your electricity bills by generating your own renewable energy. The savings depend on your energy consumption patterns and system size, but many homeowners see substantial reductions in their energy costs.
Use our full design tool for detailed system design, panel placement, and professional proposals.