Your Location
Where will the panels be installed?
Step 1: Choose your region or enter exact coordinates for a more accurate generation
estimate. Solar output varies across the UK — southern areas get ~20% more sun than Scotland.
- OR -
Solar Arrays
Configure your panels (up to 4 separate arrays)
Step 2: Add your solar arrays. Different roof faces (e.g., East + West split) should be
added as separate arrays for accurate calculation.
System & Costs
Costs, battery size, and existing setup
Installation Costs & Specs
Energy Profile
Your consumption patterns
Tariffs & Rates
Import/Export prices
Advanced Settings
Inflation, degradation & maintenance
Financial Results
Your solar & battery financials
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Payback Period
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Total Profit (25yr)
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ROI
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Annual Savings
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Annual Export Income
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Cost per kWh
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CO₂ Saved (Lifetime)
Investment Comparison
How does this compare to putting £0 in a savings account?
Annual Savings Breakdown
Detailed view of savings vs export income per year