SunTrace3D — 3D Solar and Shadow Analysis Tool

SunTrace3D

Visualize sun movement across buildings in real-time 3D. Simulate shadows for any date and time, place virtual solar panels, and estimate annual energy yield for any location on Earth.

Powered by Google 3D Tiles, SunCalc, and PVGIS — free to use, no installation required.

Everything you need for solar analysis

Powerful tools combined in one intuitive 3D interface

Shadow Simulation

Accurate sun position tracking for any date, time, and location. Watch shadows sweep across the city in real-time with a 24-hour time slider.

Solar Panel Analysis

Place virtual panels on rooftops, calculate irradiance based on PVGIS data, and estimate annual energy yield with shading loss analysis.

3D City Models

High-fidelity photorealistic 3D models streamed from Google 3D Tiles. Explore any city with terrain, buildings, and vegetation.

Sun Path Visualization

Interactive sun arc showing the complete path of the sun across the sky. Scrub through time to see how sunlight changes throughout the day and year.

SD & HD Quality

Instant preview with standard detail, then upgrade to photorealistic HD models with full texture detail. Works on desktop and mobile.

Partner API & Embeds

Integrate 3D solar views into your website with a single iframe. Full REST API for generating models and calculating energy yield programmatically.

How it works

Three simple steps to solar insight

1

Choose a Location

Search for any address worldwide or click on the map. A photorealistic 3D model loads instantly via Google 3D Tiles — no waiting required.

2

Explore in 3D

Navigate the interactive model with realistic sun shadows. Use the time slider to scrub through 24 hours or pick any date to see seasonal light changes.

3

Analyze Solar Potential

Place virtual panels on rooftops, calculate shading losses, and get annual energy yield estimates backed by PVGIS satellite irradiance data.

365 days
Full year simulation
Any location
Worldwide coverage
Real-time
Instant shadow updates
kWh estimates
PVGIS energy yield

Simple pricing

Start for free, upgrade when you need higher detail

Free

$0

Forever free, no credit card

  • 3D city model viewer
  • Standard detail (SD) models
  • Real-time shadow simulation
  • Sun path visualization
  • Solar panel placement
  • PVGIS energy yield estimates
  • Search any location worldwide
Get Started
RECOMMENDED

Pro

$9/mo

For professionals and businesses

  • Everything in Free
  • High-definition (HD) photorealistic models
  • Maximum texture detail (LOD6)
  • Priority model generation
  • Partner API access
  • Embeddable 3D viewer
  • Commercial use license
Start Free Trial

Built for developers

REST API for generating 3D models and calculating solar energy. Embed interactive 3D views on your website.

REST API

Generate HD 3D models programmatically. Retrieve model status, calculate solar energy yield, and manage API keys.

curl -X POST /api/v1/models \
  -H "Authorization: Bearer YOUR_KEY" \
  -d '{"latitude": 44.87, "longitude": 13.84}'
API Documentation

Embeddable Viewer

Add an interactive 3D solar view to your website with a single line of code. Responsive, mobile-friendly, and customizable.

<iframe
  src="/embed?lat=44.87&lng=13.84
    &key=YOUR_KEY"
  width="100%" height="500">
</iframe>
Embed Guide

Secure & Private

Your data stays private. No tracking, no analytics on your locations.

No Installation

Works entirely in your browser. No downloads, plugins, or sign-ups required.

Global Coverage

Powered by Google 3D Tiles with worldwide photorealistic city models.

Built with

Google 3D TilesThree.jsReact Three FiberSunCalcPVGISNext.jsTailwind CSSPrismaStripe

Ready to analyze solar potential?

Explore any location in 3D, simulate shadows, and calculate energy yield — all in your browser.