☀️ Free tool — no account required
Solar assessment for any UK property
Enter an address to get an instant solar potential estimate — panel count, annual generation, savings with and without battery, payback period. Powered by the Homedata Solar Assessment API.
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Solar panels
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System size (kWp)
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kWh/year generated
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kg CO₂ saved/year
☀️ Solar panels only
System cost estimate
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Annual savings
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Export income
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Payback period
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🔋 Solar + battery storage
Total cost (panels + battery)
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Annual savings
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Self-consumption
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Payback period
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🏠 Roof assessment
Estimated roof area
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Usable area
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Pitch estimate
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Orientation
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Assumptions used in this estimate
Want this data in your product?
The Solar Assessment API returns all of this data programmatically. Free tier: 100 calls/month.