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#2 Aurora Solar
Cloud‑based platform for 3‑D site modeling, shading analysis, and automated proposals with integrated financing options.
Combines layout design, performance modeling, and financial analysis in a single, intuitive web app.
#4 PV*SOL
Desktop simulation software for detailed PV system design, shading, and yield calculation with extensive component libraries.
Free, open‑source web tool for quick site layout, shading, and energy production estimates.
#6 OpenSolar
Zero‑cost, cloud‑based design and proposal suite with drag‑and‑drop layout, instant ROI calculations, and branded PDFs.
#7 Solargraf
All‑in‑one proposal builder with automated design, shading analysis, and customizable client presentations.
#8 SolarNexus
Enterprise‑grade design, permitting, and proposal workflow platform with GIS integration and real‑time collaboration.
#9 PVcase
3‑D design engine focused on utility‑scale projects, offering terrain‑aware layout, shading, and production forecasts.
#10 Sightline Solar
Proposal and CRM tool that pairs quick site design with sales automation and financing calculators.
#11 PowerHub
Design‑to‑sale platform with automated layout, performance modeling, and client‑ready proposals for residential installers.
Integrated design suite for SolarEdge hardware, featuring layout optimization, shading analysis, and system sizing.
Tool for Enphase micro‑inverter systems that creates site plans, energy forecasts, and proposal PDFs.
#14 PVsyst
Industry‑standard simulation software for detailed performance analysis, shading, and loss modeling.
Design and monitoring suite that produces layout drawings, yield predictions, and compliance reports.
Combines HelioScope's layout engine with NREL's System Advisor Model for deeper financial analysis.
#17 SunSystems
Cloud‑based design and proposal platform with built‑in permitting tools and automated client PDFs.
Web tool for quick site layout, shading, and production estimates, integrated with Autodesk BIM workflows.
Marketplace‑linked design tool that creates residential layouts, ROI calculations, and branded proposals.
Specialized civil‑engineering focused layout software for large‑scale ground‑mount projects with terrain modeling.
#21 SolarCalc Pro
Lightweight desktop app for rapid PV system sizing, shading analysis, and PDF proposal generation.