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Solar & Battery Installation Bromley Local Installers & Quotes

ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in Bromley using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.

Solar Design Bromley


Energy Usage

Understanding your household's energy usage is essential for sizing a solar system in Bromley. Average daily consumption sits at around 15 kWh for most Bromley homes, with energy efficient properties typically using substantially 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 Bromley:

Low (Efficient)
~3 kWh
Medium (average)
~4 kWh
High (intensive)
~6+ kWh

Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.

5 kWh 100 kWh
£ /kWh
$ /kWh
%

lightbulb Note: These are simplified estimates. For detailed tariff inputs and advanced calculations, use the full Photonik app.


Solar System Sizing

A solar system sized at approximately 3.9kW would cover your typical daily energy needs. We recommend sizing between 5.9kW and 7.9kW for optimal results as solar output fluctuates daily and seasonally.

In Bromley, a 6.6 kW installation produces around 24.9 kWh per day on average, though output ranges from 2.09 kWh/kW/day during December to 4.63 kWh/kW/day in August.

1 kW 20 kW

lightbulb We recommend 6.5 - 8.7kW, generating 50 - 100% more than you use.

A 6.6 kW system in Bromley can generate approximately 0 kWh annually based on local sun conditions.

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 Bromley


Solar Battery Sizing

With solar-only (no battery), a 6.6 kW system provides approximately 45% self-usage in Bromley, 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%.

Accurate battery savings and ROI require the full Photonik design platform for comprehensive calculations.

0 kWh 30 kWh
lightbulb Tip

A 5kWh battery will make you about 0% self sufficient.

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 Bromley


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 Bromley


Understanding Solar & Battery System Costs

Solar systems in Bromley are priced around £8,752 for a 6.6 kW installation, rising to approximately £13,557 when including a 10 kWh battery. Solar installations typically pay for themselves within around 7.6 years, whilst batteries extend payback but deliver significantly higher 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.

Solar Rebates & Incentives Bromley


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.

Get Full Design & Proposal

Use our full design tool for detailed system design, panel placement, and professional proposals.

Find out more in Bromley