Solar & Battery Design Tools for Spain Design Systems, Calculate ROI & Find Installers
ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in Spain using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.
Solar Design Spain
Energy Usage
The right solar system size for your Spain property depends on how much electricity you use each day. Whilst typical Spain households consume 15 kWh daily, homes with good insulation and modern appliances often use far less energy.
It's worth reducing your energy usage before going solar, as this can decrease the system size you need and improve payback. Focus on better insulation and energy efficient appliances.
Typical energy usage per person per day in Spain:
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. Sizing your system between 5.9kW and 7.9kW accounts for daily and seasonal variations in solar generation.
A 6.6 kW solar array in Spain delivers approximately 27.4 kWh daily, with generation varying seasonally from 3.05 kWh/kW/day in December up to 4.77 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 Spain
Solar Battery Sizing
A 6.6 kW solar system without battery storage achieves around 50% self-sufficiency in Spain, with 50% still coming from the grid. Installing a 10 kWh battery boosts your energy independence to around 99% per year, cutting grid dependency down 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 Spain
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 Spain
Understanding Solar & Battery System Costs
A 6.6 kW solar system in Spain is priced at approximately €12,040, whilst adding 10 kWh of battery storage increases the total investment to around €18,649. Payback periods for solar-only installations average approximately 8.3 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.