SunTrace3D
Check any roof for solar with 3D shadow analysis
What it does
Traditional solar analysis requires expensive software or waiting days for a surveyor's report. SunTrace3D fixes that by letting you type any address on Earth to instantly generate a photorealistic 3D model right in your browser. Watch real-time shadows, place virtual panels, and get energy yields based on official satellite data.
Does the same job
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- EMEvery mountain, building and tree shadow mapped for any date and time2024 · shademap.app · ▲685
I've been working on this project for about 4 years. It began as terrain only because world wide elevation data was publicly available. I then added buildings from OpenStreetMap (crowd sourced) and more recently from Overture Maps data. Some computer vision/machine learning advancements [1] in the past few years have made it possible to estimate tree canopy heights using satellite imagery alone making it possible to finally add trees to the map. The data isn't perfect, but it's within +/- 3 meters of so. Good enough to give a general idea for any location on Earth. Happy to answer…
- HWHelios – what plug-in solar could generate for any address in BritainMay 2026 · helios.southlondonscientific.com · ▲126
Plug-in solar panels (no electrician needed) have just become legal in the UK and will go on sale soon. Helios estimates how much electricity a typical installation could generate at a given address and what that's worth against your tariff. It uses UK government LIDAR data to reflect the actual skyline, so it knows whether there's a building or a hill blocking the sun. Caveats: - Outside LIDAR coverage (most of Scotland and Wales) it falls back to a synthetic horizon (less accurate). - Trees and recent developments (post-2022 or so) may not be in the data, and some address placements could…
- G3Global 3D topography explorer2025 · topography.jessekv.com · ▲118
I made a web app to generate 3D models of real places on earth from land cover and elevation data. Click anywhere on the map to get a polygon, and then click "generate". It should work at most scales, but if your watershed or region selection is too large, the result can be less exciting because it's so flat. As a warning, the 3D models can sometimes be too much for my phone. It's nicer on desktop. I'm still working better on mobile support. The land cover data I'm using gives a cool effect, but at some point I'd like to add in global imagery and clouds. The backend is a Python thread…
- FAFinding and plotting solar panels in drone videos using computer vision2022 · github.com · ▲29
My solar died for 6 months, so I built a watchdog27d ago · sunranker.com · ▲15Hi HN, Shawn here. My rooftop system lost about half a year of production and nobody told me. Not the installer, not the monitoring app, not the utility. I found out from an electric bill that made no sense, then spent weeks digging through the monitoring portal by hand. SunRanker is what I wished existed that day. Connect a system once (Enphase OAuth, or a SolarEdge site ID plus API key) and it reads production daily, shows it in plain language, and emails you when something actually changes. Three alerts only. The connection broke, the monitoring went quiet, or output has been well below…
More growth this month
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AstraPixels▲267A pixel-art solar system at its real current positions.
Growth · 30d ago · astrapixels.com
Launched alongside, March 2026
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