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#2 PV*SOL
Comprehensive 3‑D simulation software for residential PV design, offering shading analysis, module orientation optimization, and detailed energy yield reports.
#3 Helioscope
Web‑based platform by Folsom Labs that combines intuitive layout tools, high‑resolution shading analysis, and financial modeling for residential projects.
Free, open‑source software focused on residential system sizing, array layout, and performance estimation with a user‑friendly interface.
#5 Aurora Solar
Cloud‑based design suite featuring drag‑and‑drop roof modeling, precise shading calculations, and automated proposal generation for residential installers.
Industry‑standard simulation tool offering detailed loss analysis, meteorological data integration, and financial evaluation for small‑scale residential systems.
Tailored for SolarEdge hardware, this software streamlines residential system layout, inverter selection, and performance forecasting.
#8 OpenSolar
Free, web‑based design platform that automates roof measurements, shading analysis, and proposal creation for residential solar companies.
NREL’s robust modeling tool with a dedicated residential workflow for detailed energy production and financial analysis.
Desktop application focused on residential roof layout, module placement optimization, and quick ROI calculations.
#11 PVComplete
All‑in‑one design suite offering 3‑D modeling, shading analysis, and automated bill‑of‑materials generation for residential installers.
Web tool that provides high‑resolution solar resource data, system sizing, and performance forecasts for residential projects.
Consumer‑focused interface that helps homeowners visualize system layout, estimate production, and compare financing options.
#14 HelioScope Lite
A free tier of HelioScope offering essential layout and shading features suitable for small residential jobs.
#15 SolarPlanner.io
Browser‑based planner with AI‑assisted roof detection, quick layout generation, and instant performance estimates for residential sites.
DOE’s online calculator enhanced with custom roof geometry input for more accurate residential energy production estimates.