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#2 PVsyst
Industry‑standard PV system design and simulation software with detailed shading, loss analysis, and financial reporting.
Free NREL‑maintained tool for performance and financial modeling of solar PV and storage projects.
#4 HelioScope
Cloud‑based PV layout and performance platform that combines system design, shading analysis, and automated proposal generation.
#5 Aurora Solar
End‑to‑end solar design suite with 3‑D modeling, shade analysis, and instant proposal PDFs.
#6 PV*SOL
Comprehensive PV design software offering 3‑D shading, module‑inverter matching, and detailed yield forecasts.
Web‑based PV system designer focused on rapid layout creation, loss calculations, and exportable reports.
Energy management software that includes a solar PV analysis module, climate data integration, and financial evaluation.
High‑resolution solar resource data combined with a PV performance calculator for feasibility studies.
#10 OpenSolar
Free, open‑source solar design platform with automated shading analysis, layout tools, and client‑ready proposals.
Design tool tailored to SolarEdge inverter and optimizer solutions, featuring quick system sizing and proposal export.
#12 T*SOL
Specialized solar thermal system design software that also supports hybrid PV‑thermal simulations.
#13 SunDAT
Desktop application for PV system layout, shading analysis, and performance reporting with a focus on ease of use.
#14 SolarNexus
Cloud‑based platform for rapid PV design, financial modeling, and automated client proposals.
#15 Enercalc
Simple yet powerful PV calculator that provides quick yield estimates and basic financial metrics.
#16 Sungevity Design
Integrated design suite used by Sungevity installers, offering 3‑D modeling, shading, and turnkey proposal generation.
Free web tool leveraging the European PVGIS database for quick PV yield simulations and layout guidance.
#18 SolarPro
Comprehensive solar design software with module‑level modeling, loss analysis, and customizable reporting.
#19 PowerHub
Hybrid system design platform that includes robust PV modeling alongside storage, diesel, and grid interaction.
#20 SolarCalc
Web‑based PV sizing calculator with built‑in financial analysis and exportable Excel reports.
All‑in‑one design suite offering 3‑D site modeling, shading analysis, and instant proposal PDFs.