Will Solar Panels Work on Your Roof?
Find out in 30 seconds — for free. See real shadows on your actual roof, place virtual panels, and calculate exactly how much you'll save.
Without SunTrace3D
Guessing about roof suitability
No way to know if your roof gets enough sun without paying for a site visit.
Relying on installer estimates
Sales reps give optimistic numbers. Hard to verify independently.
Complex, expensive software
Professional solar tools cost thousands and require engineering expertise.
With SunTrace3D
See real shadows on your roof
3D simulation shows exactly how much shade your roof gets, hour by hour, season by season.
Independent, data-backed estimates
Energy yields from European Commission satellite data — the same source governments use.
Free to start, works instantly
Type your address and explore in seconds. No download needed — free tier includes 3D viewer, shadow sim, and solar panels.
Real-Time Shadow Simulation
Scrub through any hour of any day to see exactly where shadows fall on your property. Watch how sunlight changes from sunrise to sunset across all four seasons.
Solar Panel Placement
Place individual panels or full arrays on any roof surface. Instantly see per-panel shading analysis with color-coded indicators showing how much sunlight each panel receives.
Energy Yield Estimation
Get satellite-backed energy production estimates powered by European Commission irradiance data and NASA climate records. See monthly kWh breakdown for your exact location.
Cost & Payback Calculator
Calculate installation costs, government incentives, and payback period in your local currency. See exactly when your solar investment pays for itself.
Environmental Impact
See your CO₂ offset in tonnes per year, equivalent trees planted, and how many households your system could power. Make the green case for solar.
Appliance Coverage
See which household appliances your solar system can power — from lights and laptops to air conditioning, EV charging, and heat pumps.
How It Works
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Enter Your Address
Type your home address and see a photorealistic 3D model of your neighborhood appear instantly.
Simulate Sunlight & Shadows
Scrub through the day and year to see exactly when and where shade falls on your roof.
Get Your Solar Estimate
Place panels on your roof and get energy yield, savings, and payback period calculations instantly.
Why Switch to SunTrace3D?
Traditional Tools
- Pay €200–€500 for a site assessment
- Wait days or weeks for results
- Flat satellite images, generic estimates
- Trust the installer's numbers
SunTrace3D
- Free instant analysis from your browser
- Results in under 60 seconds
- Real 3D buildings with actual shadow data
- European Commission satellite-backed data
Frequently Asked Questions
Is this really free?
Yes. The free tier includes the 3D viewer, shadow simulation, solar panel placement, and energy yield estimates — no credit card needed. Create a free account to save projects and unlock more features.
How accurate are the energy estimates?
Energy estimates use satellite irradiance data from the European Commission (PVGIS) and 22-year average climate data from NASA POWER — the same datasets used by governments for solar policy.
Will it work for my specific roof?
SunTrace3D uses photorealistic 3D models built from real satellite data, so it shows your actual roof with real surrounding buildings and trees — not a generic estimate.
Do I need to install any software?
No. SunTrace3D runs entirely in your web browser on desktop and mobile. Nothing to download.
Can I save my analysis?
With a free account you can save projects. Pro users get unlimited project saves with HD models.
What if I want a professional installer quote?
You can request installer quotes directly from the viewer. Your system specs and analysis are shared with certified installers in your area.
Ready to see how much solar your roof can handle?
Start free — no credit card needed