GIKA SOLAR
Global Solar ROI Engine • Powered by n8n + PVGIS
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Live calculator • No signup, instant result
See how fast solar pays back – anywhere on earth.

Enter a few details about your home or project and get an instant estimate of system size, yearly production, investment cost and payback time – using real irradiance data and local economics.

Real PVGIS irradiance
Works for Germany, KSA, UAE & more
Built with n8n automation
Beta
Values are realistic estimates, not quotes. Installers can refine them based on your roof.
Solar ROI Calculator · homeowner view
LIVE · POWERED BY N8N
Tip: Average home in Germany is ~3,500–4,500 kWh/year.
Use 1 to cover 100% of your usage. Try 0.6–0.8 for partial coverage.
Example: 0.32 in Germany, ~0.18 in UAE.
Example: ~1400 €/kWp in Germany, ~900–1000 SAR/kWp in KSA.

No signup. We use PVGIS irradiance + your country economics for a realistic estimate. Final offers may differ based on roof, hardware and installer.

Your Result · updated after each calculation
Yearly ↔ Monthly
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Fill out the form and click Calculate ROI to see your solar estimate.
These are realistic estimates assuming typical system losses and self-consumption for your country. Your installer can refine them further based on your roof & hardware.
For homeowners
Understand roughly how much solar you need, what it costs and how fast it pays back – before you talk to an installer. Use it to compare quotes or decide if solar makes sense for you.
For installers & EPCs
Embed this calculator on your website, collect qualified leads with pre-filled system size, budget and payback, and call them back with a refined proposal.
For automation lovers
All numbers are generated by an n8n workflow using real PVGIS irradiance data + country-specific economics. Extend it with CRM integration, WhatsApp bots or PDF reports.