Every tool you need for
solar roof analysis.

Draw precise polygon outlines on ESRI high-resolution satellite imagery. Click vertices around any roof worldwide and get geodesic area instantly.

As you trace, panel count, system kW, annual kWh output, and payback period update live — no form submissions, no waiting.

Works on any location globally. Search an address, drop a pin, or use GPS. The app auto-detects your region's currency and electricity tariff.

9+ currencies with region-specific defaults: USD, GBP, EUR, AUD, CAD, JPY, PKR, INR, AED. Customize tariffs and installation costs freely.

Adjust peak sun hours, roof orientation (N/S/E/W), tilt angle, and performance ratio. Results follow NREL PVWatts methodology.

Visual solar array overlay on the map. Toggle between 400W, 440W, and 550W modules. See exact module fit inside your traced polygon.

12-month seasonal energy yield sparkline chart using bell-curve solar irradiance distribution, giving you a realistic production profile.

Every report includes annual CO₂ offset in tons, equivalent trees planted, and EPA GHG factor verification. Quantify your green impact.

Download professional audit reports as GeoJSON (for GIS tools) or CSV spreadsheets. Print-ready executive summaries with one click.

Trace unlimited roof polygons per project. Each shape is tracked individually with aggregated metrics across all surfaces.

Switch between satellite imagery and OpenStreetMap street view. Zoom up to 20x for rooftop-level precision tracing.

Area calculations use Turf.js geodesic formulas on the WGS-84 ellipsoid — the same coordinate system used by GPS and professional surveying.